List of civilian radiation accidents
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This article lists notable civilian accidents involving
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
materials or involving
ionizing radiation Ionizing radiation (or ionising radiation), including nuclear radiation, consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them. Some particles can travel ...
from artificial sources such as
x-ray tube An X-ray tube is a vacuum tube that converts electrical input power into X-rays. The availability of this controllable source of X-rays created the field of radiography, the imaging of partly opaque objects with penetrating radiation. In contrast ...
s and
particle accelerators A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams. Large accelerators are used for fundamental research in particle ...
. Accidents related to
nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced b ...
that involve
fissile material In nuclear engineering, fissile material is material capable of sustaining a nuclear fission chain reaction. By definition, fissile material can sustain a chain reaction with neutrons of thermal energy. The predominant neutron energy may be t ...
s are listed at List of civilian nuclear accidents. Military accidents are listed at List of military nuclear accidents.


Scope of this article

In listing civilian radiation accidents, the following criteria have been followed: # There must be well-attested and substantial health damage, property damage or contamination. # The damage must be related directly to
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
materials or
ionizing radiation Ionizing radiation (or ionising radiation), including nuclear radiation, consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them. Some particles can travel ...
from a man-made source, not merely taking place at a facility where such are being used. # To qualify as "civilian", the operation/material must be principally for non-military purposes. # The event is not an event involving
fissile material In nuclear engineering, fissile material is material capable of sustaining a nuclear fission chain reaction. By definition, fissile material can sustain a chain reaction with neutrons of thermal energy. The predominant neutron energy may be t ...
or a
nuclear reactor A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat fr ...
.


Before 1950s

* Clarence Madison Dally (1865–1904) – No INES level
New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delawa ...
– overexposure of laboratory worker *Various dates – No INES level –
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
– overexposure of scientists **
Marie Curie Marie Salomea Skłodowska–Curie ( , , ; born Maria Salomea Skłodowska, ; 7 November 1867 – 4 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the fir ...
(1867–1934) was a Polish-French physicist and chemist. She was a pioneer in the early field of radioactivity, later becoming the first two-time
Nobel laureate The Nobel Prizes ( sv, Nobelpriset, no, Nobelprisen) are awarded annually by the Royal Swedish Academy of Sciences, the Swedish Academy, the Karolinska Institutet, and the Norwegian Nobel Committee to individuals and organizations who make o ...
and the only person with Nobel Prizes in physics and chemistry. Her death, at age 67, in 1934 was from
aplastic anemia Aplastic anemia is a cancer in which the body fails to make blood cells in sufficient numbers. Blood cells are produced in the bone marrow by stem cells that reside there. Aplastic anemia causes a deficiency of all blood cell types: red bloo ...
due to massive exposure to radiation in her work, much of which was carried out in a shed with no proper safety measures being taken, as the damaging effects of hard radiation were not generally understood at that time. She was known to carry test tubes full of radioactive isotopes in her pocket, and to store them in her desk drawer, resulting in massive exposure to radiation. She was known to remark on the pretty blue-green light the metals gave off in the dark. Because of their levels of radioactivity, her papers from the 1890s are considered too dangerous to handle. Even her cookbook is highly radioactive. They are kept in lead-lined boxes, and those who wish to consult them must wear protective clothing. *Various dates – No INES level – various locations – overexposure of workers **Luminescent
radium Radium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rat ...
was used to paint watches and other items that glowed. The most notable incident is the "
Radium Girls The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self-luminous paint. The incidents occurred at three different factories: one in Orange, New Jersey, beginning around 1917; one in O ...
" of
Orange, New Jersey The City of Orange is a township in Essex County, in the U.S. state of New Jersey. As of the 2010 U.S. census, the township's population was 30,134, reflecting a decline of 2,734 (−8.3%) from the 32,868 counted in 2000. Orange was original ...
where many workers suffered from radiation poisoning. Other towns including
Ottawa, Illinois Ottawa is a city located at the confluence of the navigable Illinois River and Fox River in LaSalle County, Illinois, United States. The Illinois River is a conduit for river barges and connects Lake Michigan at Chicago, to the Mississippi Ri ...
experienced contamination of homes and other structures, and became
Superfund Superfund is a United States federal environmental remediation program established by the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). The program is administered by the Environmental Protection Agency ...
cleanup sites. *Various dates – No INES level –
Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the ...
, USA – contamination **Radium mining and manufacturing left a number of streets in the state's capital and largest city of
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...
contaminated. *1927–1930 – No INES level – USA – radium poisoning ** Eben Byers ingested almost 1400 bottles of Radithor, a radioactive patent medicine, leading to his death in 1932. He is buried in
Allegheny Cemetery Allegheny Cemetery is one of the largest and oldest burial grounds in Pittsburgh, Pennsylvania. It is a historic rural cemetery. The non-sectarian, wooded hillside park is located at 4734 Butler Street in the Lawrenceville neighborhood, and bou ...
in
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
, in a lead-lined coffin.


1950s

*March, 1957 – No INES level –
Houston, Texas Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 i ...
, USA – exposure of workers **Two employees of a company licensed by the U.S. Atomic Energy Commission to encapsulate sources for
radiographic Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical radiography ("diagnostic" and "therapeut ...
cameras received
radiation burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The m ...
s after being exposed to 192Ir powder. The incident was reported in '' Look Magazine'' in 1961, but investigations published by the
Mayo Clinic The Mayo Clinic () is a nonprofit American academic medical center focused on integrated health care, education, and research. It employs over 4,500 physicians and scientists, along with another 58,400 administrative and allied health staf ...
that same year found few of the radiological injuries claimed in widespread press reports. *10 October 1952 – Windscale fire at the facility in Cumberland, Northern England (now
Sellafield Sellafield is a large multi-function nuclear site close to Seascale on the coast of Cumbria, England. As of August 2022, primary activities are nuclear waste processing and storage and nuclear decommissioning. Former activities included nuc ...
,
Cumbria Cumbria ( ) is a ceremonial and non-metropolitan county in North West England, bordering Scotland. The county and Cumbria County Council, its local government, came into existence in 1974 after the passage of the Local Government Act 1972. ...
), UK. It is amongst the world's worst incidents, rated 5 on the
International Nuclear Event Scale The International Nuclear and Radiological Event Scale (INES) was introduced in 1990 by the International Atomic Energy Agency (IAEA) in order to enable prompt communication of safety significant information in case of nuclear accidents. The ...
, lasted for 3 days, spreading significant quantities of radioactive isotopes across UK and Europe. *2 July, 1956 -
Sylvania Electric Products explosion On the morning of July 2, 1956, three explosions involving scrap thorium occurred at the Sylvania Electric Products' Metallurgical Laboratory in Bayside, (now Bay Terrace) Queens, New York. Nine people were injured, some severely. One 28 year ...
in
Queens Queens is a borough of New York City, coextensive with Queens County, in the U.S. state of New York. Located on Long Island, it is the largest New York City borough by area. It is bordered by the borough of Brooklyn at the western tip of Long ...
,
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
. Explosions of thorium slugs resulted in the death by toxic heavy metal poisoning of one plant employee. Mark Harrington, "Sad Memories of '56 Sylvania Explosion", ''
New York Newsday ''New York Newsday'' was an American daily newspaper that primarily served New York City and was sold throughout the New York metropolitan area. The paper, established in 1985, was a New York City-specific offshoot of '' Newsday'', a Long Isl ...
'', August 17, 2003
archived
at the
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, February 4, 2012.
*June, 1958 – Y-12 National Security Complex criticality incident – Eight workers injured in the incident.


1970s

*1975 –
Brescia Brescia (, locally ; lmo, link=no, label= Lombard, Brèsa ; lat, Brixia; vec, Bressa) is a city and '' comune'' in the region of Lombardy, Northern Italy. It is situated at the foot of the Alps, a few kilometers from the lakes Garda and Iseo ...
, Italy, at a cereal irradiation facility with four
Cobalt-60 Cobalt-60 (60Co) is a synthetic radioactive isotope of cobalt with a half-life of 5.2713 years. It is produced artificially in nuclear reactors. Deliberate industrial production depends on neutron activation of bulk samples of the monoisot ...
sources, a worker entered the irradiation room by climbing onto the conveyor belt. His first symptoms of exposure (nausea, vomiting, headache and
erythema Erythema (from the Greek , meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not asso ...
) were attributed to insecticides. For more than two days, his exposure to an unshielded 500 TBq source remained unknown to the physicians. He died 13 days after exposure; his whole body dose was evaluated at 12 Gy, non-uniform. *1977 – Dounreay,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and ...
– release of nuclear material :*An explosion at the
Dounreay Nuclear Power Development Establishment Dounreay (; gd, Dùnrath) is a small settlement and the site of two large nuclear establishments on the north coast of Caithness in the Highland area of Scotland. It is on the A836 road west of Thurso. The nuclear establishments were create ...
caused a mixture of unrecorded waste to be leaked from a waste disposal shaft. *July 13, 1978 – Institute for High Energy Physics in Protvino, Russia – Anatoli Bugorski survives high-energy proton beam from a particle accelerator passing through his brain. *July 16, 1979 – Church Rock uranium mill spill – release of radioactive mine tailings :*An earth/clay dike of a United Nuclear Corporation uranium mill settling/evaporating pond failed. The broken dam released 100 million
U.S. gallon The gallon is a unit of volume in imperial units and United States customary units. Three different versions are in current use: *the imperial gallon (imp gal), defined as , which is or was used in the United Kingdom, Ireland, Canada, Austra ...
s (380,000 m3) of radioactive liquids and 1,100
short ton The short ton (symbol tn) is a measurement unit equal to . It is commonly used in the United States, where it is known simply as a ton, although the term is ambiguous, the single word being variously used for short, long, and metric ton. The var ...
s (1,000 t) of solid wastes, which settled out up to 70
mile The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 Engli ...
s (100 km) down the
Puerco River The Puerco River or Rio Puerco is a tributary of the Little Colorado River in northwestern New Mexico and northeastern Arizona. It flows through arid terrain, including the Painted Desert. Name The Puerco River is sometimes called Rio Puer ...
and also near a Navajo farming community that uses surface waters. As a result, the Navajo community suffered serious health implications. The pond was past its planned and licensed life and had been filled two feet (60 cm) deeper than design, despite evident cracking. *September 29, 1979 –
Tritium Tritium ( or , ) or hydrogen-3 (symbol T or H) is a rare and radioactive isotope of hydrogen with half-life about 12 years. The nucleus of tritium (t, sometimes called a ''triton'') contains one proton and two neutrons, whereas the nucleus of ...
leak at American Atomics in
Tucson, Arizona , "(at the) base of the black ill , nicknames = "The Old Pueblo", "Optics Valley", "America's biggest small town" , image_map = , mapsize = 260px , map_caption = Interactive map ...
. At the public school across the street from the plant, $300,000 worth of food was found to be contaminated. The chocolate cake had 56  nCi/ L (2,100 Bq/L) of tritium.


1980s

*Early 1981 - Douglas Crofut, an unemployed industrial
radiographer Radiographers, also known as radiologic technologists, diagnostic radiographers and medical radiation technologists are healthcare professionals who specialize in the imaging of human anatomy for the diagnosis and treatment of pathology. Rad ...
, was injured by an unknown source of radiation, suffering
radiation burns A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The mos ...
from which he would ultimately die. Although the source of radiation was never conclusively determined, the US Nuclear Radiation Commission strongly suspected that the source was an 192Ir industrial radiographic source which had temporarily gone missing and had been in the care of a fellow industrial radiographer living near Crofut. At the time of his injury and death, Crofut was reported to have been the first such death in the US since the
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
. Crofut’s death is notable for being the only US death attributable to an unknown source of radiation, along with being the only known case in the US of a suspected suicide undertaken via
radiation exposure Radiation is a moving form of energy, classified into ionizing and non-ionizing type. Ionizing radiation is further categorized into electromagnetic radiation (without matter) and particulate radiation (with matter). Electromagnetic radiation con ...
. *July 1981 – Lycoming, Nine Mile Point,
New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...
. An overloaded
wastewater Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industrial ...
tank was deliberately flushed into a building subbasement, resulting in a pool four feet deep. This caused a number of the approximately 150 55-gallon drums stored there to overturn and spill their contents. Fifty thousand U.S. gallons (190 m3) of contaminated water was discharged into
Lake Ontario Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York. The Canada–United States border sp ...
. *1982 – International Nutronics of
Dover, New Jersey Dover is a town in Morris County, New Jersey, United States. Located on the Rockaway River, Dover is about west of New York City and about west of Newark, New Jersey. As of the 2010 United States Census, the town's population was 18,157,
spilled an unknown quantity of 60Co solution used to treat gems, modify chemicals, and sterilize food and medical supplies. The solution spilled into the Dover sewer system and forced shutdown of the plant. The
Nuclear Regulatory Commission The Nuclear Regulatory Commission (NRC) is an independent agency of the United States government tasked with protecting public health and safety related to nuclear energy. Established by the Energy Reorganization Act of 1974, the NRC began opera ...
was only informed of the accident ten months later by a
whistleblower A whistleblower (also written as whistle-blower or whistle blower) is a person, often an employee, who reveals information about activity within a private or public organization that is deemed illegal, immoral, illicit, unsafe or fraudulent. Whi ...
. *1982 – Cobalt-60 (possibly from a radiotherapy source) became recycled into steel rebar and used in the construction of buildings in northern
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the no ...
, principally in
Taipei Taipei (), officially Taipei City, is the capital and a special municipality of the Republic of China (Taiwan). Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about southwest of the ...
, from 1982 through 1984. Over 200 residential and other buildings were found to have been built using the material. About 7000 people are believed to have been exposed to long-term low-level irradiation as a result. In the summer of 1992, a utility worker for the Taiwanese state-run electric utility Taipower brought a
Geiger counter A Geiger counter (also known as a Geiger–Müller counter) is an electronic instrument used for detecting and measuring ionizing radiation. It is widely used in applications such as radiation dosimetry, radiological protection, experimental p ...
to his apartment to learn more about the device, and discovered that his apartment was contaminated. Despite awareness of the problem, owners of some of the buildings suspected to be contaminated have continued to rent apartments out to tenants (in part because selling the units is illegal). Some research has found that the radiation has had an apparent "beneficial" effect upon the health of the tenants based on the death rate from cancers. Another study looking at the incidence of cancer found that although the overall risk of cancer was sharply reduced (SIR = 0.6, 95% CI 0.5 – 0.7), the incidence of certain leukemias in men (n = 6, SIR = 3.4, 95% CI 1.2 – 7.4) and thyroid cancer in women (n = 6, SIR = 2.6, 95% CI 1.0 – 5.7) was greater. *December 6, 1983 –
Ciudad Juárez Ciudad Juárez ( ; ''Juarez City''. ) is the most populous city in the Mexican state of Chihuahua. It is commonly referred to as Juárez and was known as El Paso del Norte (''The Pass of the North'') until 1888. Juárez is the seat of the Ju ...
,
Mexico Mexico (Spanish language, Spanish: México), officially the United Mexican States, is a List of sovereign states, country in the southern portion of North America. It is borders of Mexico, bordered to the north by the United States; to the so ...
. In the Ciudad Juárez cobalt-60 contamination incident, a local resident salvaged materials from a discarded radiation therapy machine containing 6,010 pellets of 60Co. The transport of the material led to severe contamination of his truck. When the truck was scrapped, it in turn contaminated another five tonnes of steel to an estimated of activity. This steel was used to manufacture kitchen and restaurant table legs and rebar, some of which was shipped to the U.S. and Canada. The incident was discovered months later when a truck delivering contaminated building materials to the
Los Alamos National Laboratory Los Alamos National Laboratory (often shortened as Los Alamos and LANL) is one of the sixteen research and development laboratories of the United States Department of Energy (DOE), located a short distance northwest of Santa Fe, New Mexico, ...
drove through a radiation monitoring station. Contamination was later measured on roads used to transport the original damaged radiation source. Some pellets were actually found embedded in the roadway. In the state of
Sinaloa Sinaloa (), officially the Estado Libre y Soberano de Sinaloa ( en, Free and Sovereign State of Sinaloa), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. It is divided into 18 municipalities and ...
, 109 houses were condemned due to use of contaminated building material. This incident prompted the
Nuclear Regulatory Commission The Nuclear Regulatory Commission (NRC) is an independent agency of the United States government tasked with protecting public health and safety related to nuclear energy. Established by the Energy Reorganization Act of 1974, the NRC began opera ...
and
Customs Service Customs is an authority or agency in a country responsible for collecting tariffs and for controlling the flow of goods, including animals, transports, personal effects, and hazardous items, into and out of a country. Traditionally, customs ...
to install radiation detection equipment at all major border crossings. *1985 to 1987 – The
Therac-25 The Therac-25 was a computer-controlled radiation therapy machine produced by Atomic Energy of Canada Limited (AECL) in 1982 after the Therac-6 and Therac-20 units (the earlier units had been produced in partnership with of France). It was invo ...
was a radiation therapy machine produced by
Atomic Energy of Canada Limited Atomic Energy of Canada Limited (AECL) is a Canadian federal Crown corporation and Canada's largest nuclear science and technology laboratory. AECL developed the CANDU reactor technology starting in the 1950s, and in October 2011 licensed this ...
(AECL). It is known to be responsible for six accidents between 1985 and 1987, in which patients were given massive overdoses of radiation, which were in some cases on the order of hundreds of grays. Three patients died as a result of the overdoses. These accidents highlighted the dangers of inadequate software control of
safety-critical A safety-critical system (SCS) or life-critical system is a system whose failure or malfunction may result in one (or more) of the following outcomes: * death or serious injury to people * loss or severe damage to equipment/property * environme ...
systems. *September 13, 1987 – In the
Goiânia accident The Goiânia accident was a radioactive contamination accident that occurred on September 13, 1987, in Goiânia, Goiás, Brazil, after a forgotten radiotherapy source was stolen from an abandoned hospital site in the city. It was subsequentl ...
, scavengers broke open a radiation-therapy machine in an abandoned clinic in
Goiânia Goiânia (; ) is the capital and largest city of the Brazilian federative units of Brazil, state of Goiás. With a population of 1,536,097, it is the second-largest city in the Central-West Region, Brazil, Central-West Region and the 10th-largest ...
,
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
. They sold the kilocurie (40 TBq)
caesium-137 Caesium-137 (), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nucle ...
source as a glowing curiosity. Two hundred and fifty people were contaminated; four died.
*June 6, 1988 – Radiation Sterilizers, Inc. (now Sterigenics) in
Decatur, Georgia Decatur is a city in, and the county seat of, DeKalb County, Georgia, which is part of the Atlanta metropolitan area. With a population of 24,928 in the 2020 census, the municipality is sometimes assumed to be larger since multiple ZIP Codes ...
reported a leak of 137Cs at their facility. Seventy thousand medical supply containers and milk cartons were recalled. *5 February 1989 – Three workers were exposed to
gamma ray A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically ...
s from the 60Co source in a medical products irradiation plant in
San Salvador San Salvador (; ) is the capital and the largest city of El Salvador and its eponymous department. It is the country's political, cultural, educational and financial center. The Metropolitan Area of San Salvador, which comprises the capital it ...
,
El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south ...
. The most exposed person died; another lost a limb. A number of safety systems at the plant had been disabled, and workers were unaware of the danger posed by the radioactive source. *1989 – In the Kramatorsk radiological accident, a small capsule containing highly radioactive 137Cs was found inside the concrete wall in an apartment building in
Kramatorsk Kramatorsk ( uk, Краматорськ, translit=Kramatorsk ) is a city and the administrative centre of Kramatorsk Raion in the northern portion of Donetsk Oblast, in eastern Ukraine. Prior to 2020, Kramatorsk was a city of oblast significan ...
,
Ukrainian SSR The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респ ...
. It is believed that the capsule, originally contained in a measurement device, was lost sometime during the late 1970s and ended up mixed in with gravel used to construct that building in 1980. By the time the capsule was discovered, six residents of the building had died from
leukemia Leukemia ( also spelled leukaemia and pronounced ) is a group of blood cancers that usually begin in the bone marrow and result in high numbers of abnormal blood cells. These blood cells are not fully developed and are called ''blasts'' or ...
and 17 more received varying doses of radiation.


1990s

*June 24, 1990 – Soreq,
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
– An operator at a commercial irradiation facility bypassed safety systems to clear a jam in the product conveyor area. The one- to two-minute exposure resulted in a whole body dose estimated at 10 Gy (1,000 rad) or more. He died 36 days later despite extensive medical care. *December 10–20, 1990 – a radiological accident that occurred at the
Clinic A clinic (or outpatient clinic or ambulatory care clinic) is a health facility that is primarily focused on the care of outpatients. Clinics can be privately operated or publicly managed and funded. They typically cover the primary care needs ...
of
Zaragoza Zaragoza, also known in English as Saragossa,''Encyclopædia Britannica'"Zaragoza (conventional Saragossa)" is the capital city of the Province of Zaragoza, Zaragoza Province and of the autonomous communities of Spain, autonomous community of Ara ...
, in
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...
. In the accident, at least 27 patients were
injured Major trauma is any injury that has the potential to cause prolonged disability or death. There are many causes of major trauma, blunt and penetrating, including falls, motor vehicle collisions, stabbing wounds, and gunshot wounds. Depending ...
, and 11 of them died, according to
IAEA The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 195 ...
. All of the injured were
cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal b ...
patients receiving
radiotherapy Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is a therapy using ionizing radiation, generally provided as part of cancer treatment to control or kill malignant cells and normally delivered by a linear accelerator. Rad ...
. *October 26, 1991 –
Nesvizh Nesvizh, Niasviž ( be, Нясві́ж ; lt, Nesvyžius; pl, Nieśwież; russian: Не́свиж; yi, ניעסוויז; la, Nesvisium) is a city in Belarus. It is the administrative centre of the Nyasvizh District (''rajon'') of Minsk Region ...
,
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
– An operator at an atomic sterilization facility bypassed the safety systems to clear a jammed conveyor. Upon entering the irradiation chamber he was exposed to an estimated whole body dose of 11 Gy, with some portions of the body receiving upwards of 20 Gy. Despite prompt intensive medical care, he died 113 days after the accident. *June, 1992 - A Ph.D.
student A student is a person enrolled in a school or other educational institution. In the United Kingdom and most commonwealth countries, a "student" attends a secondary school or higher (e.g., college or university); those in primary or elementa ...
at the
Institute for Animal Health The Pirbright Institute (formerly the Institute for Animal Health) is a research institute in Surrey, England, dedicated to the study of infectious diseases of farm animals. It forms part of the UK government's Biotechnology and Biological Sci ...
in the UK, now the Pirbright Institute, received an approximately 2.5 Gy dose from 32P labelled organo-phosphate as part of an experiment to label virus infected cells. The company shipping the material had supplied over 1000 times the amount and the receiving site did not have adequate monitoring facilities for source material. *November 16, 1992 – Indiana Regional Cancer Center – After treating a patient with HDR
brachytherapy Brachytherapy is a form of radiation therapy where a sealed radiation source is placed inside or next to the area requiring treatment. ''Brachy'' is Greek for short. Brachytherapy is commonly used as an effective treatment for cervical, pro ...
, personnel ignored alarms indicating high radiation levels and an available radiation survey meter was not used to confirm or rule out the area alarm's signal. A radioactive pellet of 192Ir had broken off inside the patient during treatment. The patient was transported back to a nursing home where the catheter containing the radioactive pellet fell out four days later. The patient received a thousand times the intended dose and died several days later. *November 19, 1992 – A 60Co source (which was used for an agricultural project) was taken home by a worker from a well within a construction site which used to be part of an environmental monitoring station in Xinzhou,
Shanxi Shanxi (; ; formerly romanised as Shansi) is a landlocked province of the People's Republic of China and is part of the North China region. The capital and largest city of the province is Taiyuan, while its next most populated prefecture-leve ...
(China). This resulted in three deaths and affected 100+ people. A woman was exposed to radiation while nursing her sick husband. Her dose was estimated to be 2.3 Gy by means of a blood test 41 days after the accident, 16 years after the accident the woman has been subject to premature aging which may be a result of her radiation exposure. Her then unborn child (induced at 37 weeks, birth weight 2 kilograms) got a dose of almost 2 Gy in utero, and at the age of 16 the child had an IQ of 46. *August 31, 1994 – Commerce Township,
Michigan Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and t ...
– A home-made neutron source built by 17-year-old David Hahn was discovered in his mother's back yard. The unshielded neutron source exposed his neighborhood to 1,000 times the normal levels of background radiation. *October 21, 1994 – Theft of radioactive material in Tammiku: a strong
caesium-137 Caesium-137 (), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nucle ...
source was stolen by scrap metal scavengers in Tammiku,
Männiku, Saku Parish Männiku is a village in Saku Parish, Harju County in northern Estonia. (retrieved 27 July 2021) It has a railway station on the Tallinn - Viljandi railway line operated by Elron (rail transit). See also * Männiku, Tallinn Männiku ( Est ...
,
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, an ...
. The man who carried the source home received a 4,000 rad whole-body dose and died 12 days after first taking it. In addition, the man's stepson sustained
radiation burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The m ...
injuries to his hands after he found and touched the source after the man had placed it inside a kitchen drawer. *September, 1996 – San José,
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
: A cobalt radiation therapy device was not properly tuned and 116 patients that were undergoing treatment were irradiated with a very high dose. *May 1998 – Acerinox accident – recycler
Acerinox Acerinox, S.A. () is a stainless steel manufacturing conglomerate group based in Spain. The company was founded in 1970, and initially received technical support from the Japanese firm Nisshin Steel. Nisshin continues to hold approximately 15% of A ...
in
Cádiz Cádiz (, , ) is a city and port in southwestern Spain. It is the capital of the Province of Cádiz, one of eight that make up the autonomous community of Andalusia. Cádiz, one of the oldest continuously inhabited cities in Western Europe, ...
,
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...
, unwittingly melted
scrap metal Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered m ...
containing radioactive sources; the radioactive cloud drifted to
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
before being detected. *December 1998 –
Istanbul ) , postal_code_type = Postal code , postal_code = 34000 to 34990 , area_code = +90 212 (European side) +90 216 (Asian side) , registration_plate = 34 , blank_name_sec2 = GeoTLD , blank_i ...
,
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...
– two sealed transport packages for spent 60Co teletherapy sources from a shipment of three planned for export in 1993 were instead stored in a warehouse in
Ankara Ankara ( , ; ), historically known as Ancyra and Angora, is the capital of Turkey. Located in the central part of Anatolia, the city has a population of 5.1 million in its urban center and over 5.7 million in Ankara Province, maki ...
, then moved to
Istanbul ) , postal_code_type = Postal code , postal_code = 34000 to 34990 , area_code = +90 212 (European side) +90 216 (Asian side) , registration_plate = 34 , blank_name_sec2 = GeoTLD , blank_i ...
, where a new owner sold them off as scrap metal. The buyers dismantled the containers, exposing themselves and others to ionizing radiation. Eighteen people, including seven children, were admitted to hospital. Ten of the adults developed acute radiation syndrome. One exposed 60Co source was retrieved, but the source from the other package was still unaccounted for one year later. It is believed that the second container was empty all along, but this could not be conclusively proven from company records. *1999 – A road near Mrima Hill,
Kenya ) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi , ...
was rebuilt using local materials later found to be radioactive. Some workers were exposed to excessive radiation, and many residents of the area were tested for exposure. 2,975 t of roadway material were to be dug up to eliminate the hazard. *1999 - Yanango,
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...
: A construction worker and his family were exposed to an Ir-192 industrial radiography source after the worker picked-up the source and carried it in his back pocket for 17 hours. The exposure received to his whole body was estimated to be approximately 150 Rem, and exposure to his right buttocks was 10,000 Rad.


2000s

*February 1, 2000 – Samut Prakan radiation accident: The radiation source of an expired teletherapy unit was purchased and transferred without registration, and stored in an unguarded car park in Samut Prakan,
Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...
without warning signs. It was then stolen from the car park and dismantled in a junkyard for scrap metal. Workers completely removed the 60Co source from the lead shielding, and became ill shortly thereafter. The radioactive nature of the metal and the resulting contamination was not discovered until 18 days later. Seven injuries and three deaths resulted from this incident. *August 2000 – March 2001; at the Instituto Oncologico Nacional of
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Co ...
, 28 patients receiving treatment for prostate cancer and cancer of the cervix received lethal doses of radiation due to a modification in the protocol for measuring radiation used without a verification test. The negligence, unique in its scope, was investigated by the IAT from May 26 – June 1, 2001. *February 2001 – A medical accelerator at the Bialystok Oncology Center in
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...
malfunctioned, resulting in five female patients receiving excessive doses of radiation while undergoing breast cancer treatment. The incident was discovered when one of the patients complained of a painful
radiation burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The m ...
. In response, a local technician was called in to repair the device, but was unable to do so, and in fact caused further damage. Subsequently, competent authorities were notified, but as the apparatus had been tampered with, they were unable to ascertain the exact doses of radiation received by the patients (localized doses might have been in excess of 60 Gy). No deaths were reported as a result of this incident, although all affected patients required skin grafts. The attending doctor was charged with
criminal negligence In criminal law, criminal negligence is a surrogate state of mind required to constitute a ''conventional'' (as opposed to ''strictly liable'') offense. It is not, strictly speaking, a (Law Latin for "guilty mind") because it refers to an o ...
, but in 2003 a district court ruled that she was not responsible for the incident. The hospital technician was fined. *December 2, 2001 – Lia radiological accident: In the village of Lia, Georgia three lumberjacks discovered two 90Sr cores from
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
radioisotope thermoelectric generator A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioa ...
s. These were of the Beta-M type, built in the 80s, with an activity of 1295 TBq each. The lumberjacks were scavenging the forest for firewood, when they came across two metal cylinders melting snow within a one meter radius laying in the road. They picked up these objects to use as personal heaters, sleeping with their backs to them. All lumberjacks sought medical attention individually, and were treated for radiation injuries. One patient, DN-1, was seriously injured and required multiple skin grafts. After 893 days in the hospital, he was declared dead after sepsis caused by complications and infections of a radiation ulcer on the subject's back. The disposal team consisted of 24 men who were restricted to a maximum of 40 seconds worth of exposure (max. 20mSv) each while transferring the canisters to
lead Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, ...
-lined drums. *March 11, 2002 – INES Level 2 – A 2.5
tonne The tonne ( or ; symbol: t) is a unit of mass equal to 1000  kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United State ...
60Co
gamma Gamma (uppercase , lowercase ; ''gámma'') is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop . In Modern Greek, this letter r ...
source was transported from Cookridge Hospital,
Leeds Leeds () is a city and the administrative centre of the City of Leeds district in West Yorkshire, England. It is built around the River Aire and is in the eastern foothills of the Pennines. It is also the third-largest settlement (by popul ...
, to
Sellafield Sellafield is a large multi-function nuclear site close to Seascale on the coast of Cumbria, England. As of August 2022, primary activities are nuclear waste processing and storage and nuclear decommissioning. Former activities included nuc ...
with defective shielding at the bottom of the container. As the radiation escaped from the package downwards into the ground, it is thought that this event did not cause any injury or disease in either a human or an animal. This event was treated in a serious manner because the
defense in depth Defence in depth (also known as deep defence or elastic defence) is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space. Rather than defeating ...
type of protection for the source had been eroded. Had the container been tipped over in a road crash, people at the scene would have been exposed to 83.5 Gy/h. The company responsible for the transport of the source, AEA Technology plc, was fined £250,000 by a British
court A court is any person or institution, often as a government institution, with the authority to adjudicate legal disputes between parties and carry out the administration of justice in civil, criminal, and administrative matters in acco ...
. *2003 – Cape of Navarin,
Chukotka Autonomous Okrug Chukotka (russian: Чуко́тка), officially the Chukotka Autonomous Okrug,, ''Čukotkakèn avtonomnykèn okrug'', is the easternmost federal subjects of Russia, federal subject of Russia. It is an autonomous okrug situated in the Russian ...
,
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
. A
radioisotope thermoelectric generator A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioa ...
(RTG) located on the
Arctic The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenla ...
shore A shore or a shoreline is the fringe of land at the edge of a large body of water, such as an ocean, sea, or lake. In physical oceanography, a shore is the wider fringe that is geologically modified by the action of the body of water past a ...
was discovered in a highly degraded state. The exposure rate at the generator surface was as high as 15  R/ h; in July 2004 a second inspection of the same RTG showed that
gamma radiation A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically s ...
emission had risen to 87 R/h and that 90Sr had begun to leak into the environment. In November 2003, a completely dismantled RTG located on the island of Yuzhny Goryachinsky in the
Kola Bay Kola Bay (russian: Кольский залив) or Murmansk Fjord is a 57-km-long fjord of the Barents Sea that cuts into the northern part of the Kola Peninsula. It is up to 7 km wide and has a depth of 200 to 300 metres. The Tuloma, Rosta ...
was found. The generator's radioactive heat source was found on the ground near the shoreline in the northern part of the island. *September 10, 2004 –
Yakutia Sakha, officially the Republic of Sakha (Yakutia),, is the largest republic of Russia, located in the Russian Far East, along the Arctic Ocean, with a population of roughly 1 million. Sakha comprises half of the area of its governing Far E ...
,
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
. Two
radioisotope thermoelectric generator A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioa ...
s were dropped 50
meter The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its pref ...
s onto the tundra at Zemlya Bunge island during an
airlift An airlift is the organized delivery of supplies or personnel primarily via military transport aircraft. Airlifting consists of two distinct types: strategic and tactical. Typically, strategic airlifting involves moving material long distan ...
when the
helicopter A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attribu ...
flew into heavy weather. According to the nuclear regulators, the impact compromised the RTGs' external radiation shielding. At a height of 10 meters above the impact site, the intensity of gamma radiation was measured at 4 
mSv mSv or MSV may refer to: * Maize streak virus, a plant disease * Medium-speed vehicle, US category * Medium Systems Vehicle, a class of fictional artificially intelligent starship in The Culture universe of late Scottish author Iain Banks * Millis ...
/h. *2005 – Dounreay, U.K. In September, the site's cementation plant was closed when 266 liters of radioactive reprocessing residues were spilled inside containment. In October, another of the site's reprocessing laboratories was closed down after nose-blow tests of eight workers tested positive for trace radioactivity. *2005-2006 – : a problem in dosimetry software caused an overdosage during radiotherapy. During this period 7500 patients were treated for prostate cancer at the Jean Monnet Hospital in Epinal, France. An investigation showed that 5 people died from radiation, 24 were severely injured, 700 were significantly overexposed, and 4500 were mildly exposed. *March 11, 2006 – at Fleurus,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...
, an operator working for Sterigenics, at a medical equipment sterilization site, entered the irradiation room and remained there for 20
second The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds ea ...
s. The room contained a source of 60Co which was not immersed in the pool of water. Three weeks later, the worker suffered symptoms typical of acute radiation syndrome (vomiting, loss of hair, fatigue). One estimate that he was exposed to a dose of between 4.4 and 4.8 Gy due to a malfunction of the control-command hydraulic system maintaining the radioactive source in the pool. The operator spent over one month in a specialized hospital before going back home. To protect workers, the federal nuclear control agency AFCN and private auditors from AVN recommended Sterigenics to install a redundant system of security. It is an accident of level 4 on the INES scale. *Teenager Lisa Norris died in 2006 after she was given an overdose of radiation as a result of
human error Human error refers to something having been done that was " not intended by the actor; not desired by a set of rules or an external observer; or that led the task or system outside its acceptable limits".Senders, J.W. and Moray, N.P. (1991) Human ...
. The overdose occurred during treatment for a
brain tumor A brain tumor occurs when abnormal cells form within the brain. There are two main types of tumors: malignant tumors and benign (non-cancerous) tumors. These can be further classified as primary tumors, which start within the brain, and seco ...
at Beatson Oncology Centre, in
Glasgow Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated popu ...
, (Scotland). The Scottish Government published an independent investigation of this case. The intended treatment for Norris was 35  Gy to be delivered by a
linac A linear particle accelerator (often shortened to linac) is a type of particle accelerator that accelerates charged subatomic particles or ions to a high speed by subjecting them to a series of oscillating electric potentials along a linear be ...
machine to the whole of the central nervous system to be delivered in twenty equal fractions of 1.75 Gy, which was to be followed by 19.8 Gy to be delivered to the tumor only (in eleven fractions of 1.8 Gy). In the first phase of the treatment a 58% overdose occurred, and Norris's CNS suffered a dose of 55.5 Gy. The second phase of the treatment was abandoned on medical advice, and Norris survived for some time after the overdose. *January 23, 2008 – A licensed radiology technologist, Raven Knickerbocker, at Mad River Community Hospital in
Arcata Arcata (; Wiyot: ''Goudi’ni''; Yurok: ''Oket'oh'') is a city adjacent to the Arcata Bay (northern) portion of Humboldt Bay in Humboldt County, California, United States. At the 2020 census, Arcata's population was 18,857. Arcata was first ...
,
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
performed 151 CT scan slices on a single 3 mm level on the head of a 23-month-old child over a 65-minute period. The child suffered
radiation burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The m ...
s (skin
erythema Erythema (from the Greek , meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not asso ...
) to a small strip of his face and head. In one report, an independent investigation of the child's blood was said to have found "substantial chromosomal damage" but subsequent reports reported no lasting harm. The technologist was fired, and her license was permanently revoked on March 16, 2011 by the state of
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
, citing "gross negligence". The hospital's radiology manager, Bruce Fleck, testified that Knickerbocker's conduct was "a rogue act of insanity". *August 23–24, 2008 – INES Level 3 – Fleurus,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...
– Nuclear material leak. A gaseous leak of a radioisotope of iodine, 131I, was detected at a large medical radioisotope laboratory, Institut national des Radio-Eléments. Belgian authorities implemented restrictions on use of local farming produce within 5 km of the leak, when higher-than-expected levels of contamination was detected in local grass. The particular isotope of iodine has a half-life of 8
day A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours, 1440 minutes, or 86,400 seconds. In everyday life, the word "day" often refers to a solar day, which is the length between two ...
s. The
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body ...
sent out a warning over their ECURIE-alert system on the 29th of August. The quantity of radioactivity released into the environment was estimated at 45 GBq 131I, which corresponds to a dose of 160 µSv (effective dose) for a hypothetical person remaining permanently at the site's enclosure. *February 2008-August 2009 – A software misconfiguration in a CT scanner used for brain perfusion scanning at
Cedars Sinai Medical Center Cedars-Sinai Medical Center is a nonprofit, tertiary, 886-bed teaching hospital and multi-specialty academic health science center located in Los Angeles, California. Part of the Cedars-Sinai Health System, the hospital employs a staff of over 2, ...
in
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world ...
,
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
, resulted in 206 patients receiving radiation doses approximately 8 times higher than intended during an 18-month period starting in February 2008. Some patients reported temporary hair loss and
erythema Erythema (from the Greek , meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not asso ...
. The U.S. Food and Drug Administration (FDA) has estimated that patients received doses between 3 Gy and 4 Gy.


2010s

*April 2010 – INES level 4 – A 35-year-old man was hospitalized in
New Delhi New Delhi (, , ''Naī Dillī'') is the capital of India and a part of the National Capital Territory of Delhi (NCT). New Delhi is the seat of all three branches of the government of India, hosting the Rashtrapati Bhavan, Parliament Hous ...
after handling radioactive scrap metal. Investigation led to the discovery of an amount of scrap metal containing 60Co in the Delhi's industrial district of
Mayapuri Mayapuri is an industrial locality in West Delhi. It used to be a major hub of heavy metal and small scale industries, but following recent government sanctions, most of the heavy metal industries moved out. The place is now a combination of r ...
. The 35-year-old man later died from his injuries, while six others remained hospitalized. The radioactivity was from a gammacell 220 research source which was incorrectly disposed of by sale as scrap metal. The gammacell 220 was originally made by
Atomic Energy of Canada Limited Atomic Energy of Canada Limited (AECL) is a Canadian federal Crown corporation and Canada's largest nuclear science and technology laboratory. AECL developed the CANDU reactor technology starting in the 1950s, and in October 2011 licensed this ...
whose gamma irradiation work is now under the name of
Nordion Nordion Inc., a Sotera Health company, is a health science company that provides Cobalt-60 used for sterilization and treatment of disease (radiotherapy). Nordion is headquartered in Ottawa, Ontario, Canada, with facilities in Vancouver, Britis ...
. Nordion does not offer servicing for gammacell 220 machines but can arrange for, in theory, safe disposal of unwanted units. A year later,
Delhi Police The Delhi Police (DP) is the law enforcement agency for the National Capital Territory of Delhi (NCT). Delhi Police comes under the jurisdiction of the Ministry of Home Affairs (MHA), Government of India. In 2015, sanctioned strength of Delhi ...
charged six DU professors from the Chemistry Department for negligent disposal of the radioactive device. *July 2010 – During a routine inspection at the Port of Genoa, on
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
's northwest coast, a
cargo container An intermodal container, often called a shipping container, is a large standardized shipping container, designed and built for intermodal freight transport, meaning these containers can be used across different modes of transport – from shi ...
from
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in Western Asia. It covers the bulk of the Arabian Peninsula, and has a land area of about , making it the fifth-largest country in Asia, the second-largest in the Ara ...
containing nearly of scrap
copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pink ...
was detected to be emitting
gamma radiation A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically s ...
at a rate of around After quarantining the container for over a year on Port grounds, Italian officials dissected it using robots and discovered a rod of 60Co long and 0.8 cm in diameter intermingled with the scrap. Officials suspected its
provenance Provenance (from the French ''provenir'', 'to come from/forth') is the chronology of the ownership, custody or location of a historical object. The term was originally mostly used in relation to works of art but is now used in similar senses i ...
to be inappropriately disposed-of medical or food-processing equipment. The rod was sent to
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwee ...
for further analysis, after which it was likely to be recycled. *August 2010 - A Cesium-137 radioactive source was fortuitously discovered beneath the asphalt of Stargarder Straße in
Prenzlauer Berg Prenzlauer Berg () is a locality of Berlin, forming the southerly and most urban district of the borough of Pankow. From its founding in 1920 until 2001, Prenzlauer Berg was a district of Berlin in its own right. However, that year it was incor ...
, Germany, where it had probably been for the past 20 years. The site was dug up, and the source transferred to the Helmholtz-Zentrum Berlin. *October 2011 – At a hospital in
Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the state of the same name, Brazil's third-most populous state, and the second-most populous city in Brazil, after São Paulo. Listed by the GaWC as a b ...
, a 7-year-old girl was treated for
acute lymphoblastic leukemia Acute lymphoblastic leukemia (ALL) is a cancer of the lymphoid line of blood cells characterized by the development of large numbers of immature lymphocytes. Symptoms may include feeling tired, pale skin color, fever, easy bleeding or bruis ...
with whole brain radiation. The prescriptions were done manually in a form with no formal peer review process. Because of an error in the registration of the number of sessions, she received the full dose in each session of radiotherapy. Even with early toxicity, the doctor refused to assess the patient, because some of the complaints were usual. The full treatment was finished in about 8 sessions and the girl was admitted with
radiation burn A radiation burn is a damage to the skin or other biological tissue and organs as an effect of radiation. The radiation types of greatest concern are thermal radiation, radio frequency energy, ultraviolet light and ionizing radiation. The m ...
s. She developed
frontal lobe The frontal lobe is the largest of the four major lobes of the brain in mammals, and is located at the front of each cerebral hemisphere (in front of the parietal lobe and the temporal lobe). It is parted from the parietal lobe by a groove be ...
necrosis Necrosis () is a form of cell injury which results in the premature death of cells in living tissue by autolysis. Necrosis is caused by factors external to the cell or tissue, such as infection, or trauma which result in the unregulated diges ...
and died in June 2012. After an investigation, the physicist, technician, and physician were charged with
manslaughter Manslaughter is a common law legal term for homicide considered by law as less culpable than murder. The distinction between murder and manslaughter is sometimes said to have first been made by the ancient Athenian lawmaker Draco in the 7th ce ...
. *May 2013 – J-PARC radioactive isotope leakage accident. On 23 May 2013, accidental leakage of radioactive isotopes occurred in the high-intensity proton accelerator facility, one of the nuclear research facilities in Tokai-mura, Ibaraki Prefecture. In addition to the diffusion of radioactive isotopes due to the malfunction of equipment, the response to the accident was mishandled, with 33 out of 55 personnel who were on site at the time exposed. A small amount of radioactive isotope leaked outside the controlled area as well. This incident was tentatively evaluated as an
International Nuclear Event Scale The International Nuclear and Radiological Event Scale (INES) was introduced in 1990 by the International Atomic Energy Agency (IAEA) in order to enable prompt communication of safety significant information in case of nuclear accidents. The ...
Level 1 event by the Japanese Nuclear Regulatory Commission. *May 2013 – A batch of metal-studded belts sold by online retailer
ASOS.com ASOS plc ( ) is a British online fashion and cosmetic retailer. The company was founded in 2000 in London, primarily aimed at young adults. The website sells over 850 brands as well as its own range of clothing and accessories, and ships to al ...
were confiscated and held in a U.S. radioactive storage facility after testing positive for 60Co. *December 2013 – A truck transporting a 111 TBq 60Co teletherapy source from a
Tijuana Tijuana ( ,"Tijuana"
(US) and
< ...
hospital to a waste storage facility was hijacked near
Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...
. This triggered a nationwide search by Mexican authorities. The truck was found a day later near Hueypoxtla, where it was discovered that the source had been removed from its shielding. The source was found shortly after in a nearby field, where it was safely recovered. The thieves could have received a fatal dose of radiation. *August 2018 – A 23 kg
radioactive source A radioactive source is a known quantity of a radionuclide which emits ionizing radiation; typically one or more of the radiation types gamma rays, alpha particles, beta particles, and neutron radiation. Sources can be used for irradiation, where ...
used for industrial radiography (detecting defects in metal weldments) went missing from the back of a pickup truck during transportation in Malaysia. It contains 192Ir and was reported missing on August 10. This is not the first time such an incident happened.


2020s

*February 2020 - There was a
Caesium-137 Caesium-137 (), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nucle ...
contamination in
Serpong Serpong is a district and a sub-district located in South Tangerang, Banten Province, Indonesia. Before South Tangerang City became an autonomous city, Serpong was one of the sub-districts of Tangerang Regency. Administrative Borders Subdis ...
,
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gui ...
. Radioactive contamination has been found on an empty land close to residential building, with estimated dose exposure about 148 mSv/h. Depleted uranium and an empty cylinder has also been found in two houses in the same neighborhood. The owner is known to be a retired BATAN(National Nuclear Energy Agency of Indonesia) employee. Decontamination procedure has been done by removing 87 drums of radioactive soil, and cutting trees and grass. A measurable Caesium-137 trace has been detected on two residents, at 0,12 mSv and 0,5 mSv each. *May 2021 - In
Mumbai Mumbai (, ; also known as Bombay — the official name until 1995) is the capital city of the Indian state of Maharashtra and the ''de facto'' financial centre of India. According to the United Nations, as of 2018, Mumbai is the secon ...
, Maharashtra Anti Terrorism Squad arrested two people on 5 May with 7.1 kg of natural uranium estimated worth . It was unclear how they acquired the material. The
National Investigation Agency The National Investigation Agency (NIA) is the primary counter-terrorist task force of India. The agency is empowered to deal with the investigation of terror related crimes across states without special permission from the states under written ...
later took over the case.


See also

*
Background radiation Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate introduction of radiation sources. Background radiation originates from a variety of source ...
*
International Nuclear Event Scale The International Nuclear and Radiological Event Scale (INES) was introduced in 1990 by the International Atomic Energy Agency (IAEA) in order to enable prompt communication of safety significant information in case of nuclear accidents. The ...
* List of civilian nuclear accidents * List of military nuclear accidents * List of nuclear reactors * List of nuclear whistleblowers * Lists of disasters * Lists of nuclear disasters and radioactive incidents * Nuclear power debate *
Nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced b ...
*
Nuclear reactor A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat fr ...
*
Radiation In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: * ''electromagnetic radiation'', such as radio waves, microwaves, infrared, visi ...
*
X-ray An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10  nanometers, corresponding to frequencies in the range 30&nb ...


References


External links


Schema-root.org: Nuclear Power Accidents
2 topics, both with a current news feed
U.S. Nuclear Regulatory Commission (NRC) website
with search function and electronic public reading room
International Atomic Energy Agency website
with extensive online library
Canada's Nuclear Safety Commission (CNSC)Concerned Citizens for Nuclear Safety
Detailed articles on nuclear watchdog activities in the US

Information on radiation units and doses

Extensive, well-referenced list of radiological incidents.
Civilian nuclear incidents in the UK since 2001
{{Disasters * * Civilian radiation Civilian Radiation Accidents Radioactivity cs:Jaderná havárie de:Liste der nuklearen Unfälle fr:Liste des accidents nucléaires ja:原子力事故