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Elbmarsch (
Northern Low Saxon Northern Low Saxon (in Standard German, Standard High German: ', also ', lit. ''North(ern) Low Saxon/German''; in Dutch language, Standard Dutch: ') is a subgroup of Low Saxon dialects of Low German. As such, it covers a great part of the West ...
: ''Elvmasch'') is a ''
Samtgemeinde A (, ; plural: ''Samtgemeinden'') is a type of administrative division in Lower Saxony, Germany. ''Samtgemeinden'' are local government associations of Municipalities of Germany, municipalities, equivalent to the ''Amt (administrative division) ...
'' ("collective municipality") in the district of Harburg, in
Lower Saxony Lower Saxony is a States of Germany, German state (') in Northern Germany, northwestern Germany. It is the second-largest state by land area, with , and fourth-largest in population (8 million in 2021) among the 16 ' of the Germany, Federal Re ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
. It is situated on the southern (left) bank of the river
Elbe The Elbe ( ; ; or ''Elv''; Upper Sorbian, Upper and , ) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Republic), then Ge ...
, approx. 30 km southeast of
Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germany by population, second-largest city in Germany after Berlin and List of cities in the European Union by population within city limits, 7th-lar ...
, and 20 km north of
Lüneburg Lüneburg, officially the Hanseatic City of Lüneburg and also known in English as Lunenburg, is a town in the German Bundesland (Germany), state of Lower Saxony. It is located about southeast of another Hanseatic League, Hanseatic city, Hambur ...
. Its seat is in the village Marschacht. The name refers to the
marsh In ecology, a marsh is a wetland that is dominated by herbaceous plants rather than by woody plants.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p More in genera ...
es (German: ''Marsch'') along the Elbe. The ''Samtgemeinde'' Elbmarsch consists of the following municipalities: # Drage # Marschacht # Tespe


Cancer cluster

Elbmarsch is the epicenter of a notable pediatric
cancer cluster A cancer cluster is a disease cluster in which a high number of cancer cases occurs in a group of people in a particular geographic area over a limited period of time. Historical examples of work-related cancer clusters are well documented in th ...
that persisted for over 15 years. Although a sparsely populated region a high rate of childhood
leukemia Leukemia ( also spelled leukaemia; pronounced ) is a group of blood cancers that usually begin in the bone marrow and produce high numbers of abnormal blood cells. These blood cells are not fully developed and are called ''blasts'' or '' ...
was observed with an incidence in the region that is significantly higher compared to Germany as a whole. Ten more cases were identified than were expected throughout the period. No unique hazards have been identified. The community is surrounded by two nuclear establishments. A possible accidental release of radionuclides in 1986 was hypothesized.
Ionizing radiation Ionizing (ionising) radiation, including Radioactive decay, nuclear radiation, consists of subatomic particles or electromagnetic waves that have enough energy per individual photon or particle to ionization, ionize atoms or molecules by detaching ...
is another exposure conclusively linked with childhood
leukemia Leukemia ( also spelled leukaemia; pronounced ) is a group of blood cancers that usually begin in the bone marrow and produce high numbers of abnormal blood cells. These blood cells are not fully developed and are called ''blasts'' or '' ...
. Survivors (within 1000 m) of
Hiroshima is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010. Kazumi Matsui has b ...
and
Nagasaki , officially , is the capital and the largest Cities of Japan, city of Nagasaki Prefecture on the island of Kyushu in Japan. Founded by the Portuguese, the port of Portuguese_Nagasaki, Nagasaki became the sole Nanban trade, port used for tr ...
developed leukemia 20 times more frequently than in unexposed populations. The Krümmel Nuclear Power Plant began operations near Elbmarsch, Germany in 1983. Like
Fallon, Nevada Fallon is a city in Churchill County, Nevada, Churchill County in the U.S. state of Nevada. The population was 9,327 at time of the 2020 United States census, 2020 census. Fallon is the county seat of Churchill County and is located in the Lahont ...
, the nearby population is quite small, including approximately 9,000 children within 10 km of the plant. Over a one and a half year period, six cases of leukemia and one case of
aplastic anemia Aplastic anemia (AA) is a severe hematologic condition in which the body fails to make blood cells in sufficient numbers. Normally, blood cells are produced in the bone marrow by stem cells that reside there, but patients with aplastic anemia ...
were identified among children in this area, a 41.5 increase over national incidence rates. Four more cases were diagnosed during a subsequent two-year period. Public health officials began to suspect that high levels of airborne
tritium Tritium () or hydrogen-3 (symbol T or H) is a rare and radioactive isotope of hydrogen with a half-life of ~12.33 years. The tritium nucleus (t, sometimes called a ''triton'') contains one proton and two neutrons, whereas the nucleus of the ...
“might be involved either directly or as an indicator for earlier releases of other short-lived
radionuclide A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is a nuclide that has excess numbers of either neutrons or protons, giving it excess nuclear energy, and making it unstable. This excess energy can be used in one of three ...
s”. Anti-nuclear activists believed it was due to the nuclear plant, which led to several investigations. The reported discovery of small spherical beads of nuclear material in the area led to further concern, as well as the presence of minute amounts of plutonium in the
Elbe The Elbe ( ; ; or ''Elv''; Upper Sorbian, Upper and , ) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Republic), then Ge ...
. The origins of the nuclear material were disputed, with one report determining them to not be that of the Krümmel plant. Another report claimed that they may have come from an undisclosed fire in 1986, however this theory has been questioned as it would have required a substantial government coverup. The Chernobyl disaster has also been suggested as a source, though is considered unlikely. The probable source of the material, especially in the Elbe, is nuclear reprocessing plants in France. A 2010 report exonerated the nuclear power plants on the Elbe as the cause of contamination. Further doubt was cast on the nature of the supposed beads of nuclear material, with a Federal commission chastising the original commission that claimed to have discovered the beads. The exact cause of the increased leukemia cases remains unknown, and could be due to other environmental factors, or even by chance. The community surrounding the
Savannah River The Savannah River is a major river in the Southeastern United States, forming most of the border between the states of Georgia (U.S. state), Georgia and South Carolina. The river flows from the Appalachian Mountains to the Atlantic Ocean, ...
nuclear facility in the U.S. was chosen for comparison with the “cluster” noted around the Kruemmel site. The tritium burden around the Savannah River site is significantly higher than the measured burden in Germany; however, the incidence of leukemia in South Carolina was not increased. Differences in population density, proximity to the power plant, and route of tritium exposure (inhalational versus oral via drinking water) may account for the lack of correlation between the two sites, or there may be alternative explanations for the increased incidence of hematopoietic malignancy between 1989 and 1991 in Elbmarsch. Some of these alternative hypotheses have included
electromagnetic field An electromagnetic field (also EM field) is a physical field, varying in space and time, that represents the electric and magnetic influences generated by and acting upon electric charges. The field at any point in space and time can be regarde ...
s, parental
radiation In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes: * ''electromagnetic radiation'' consisting of photons, such as radio waves, microwaves, infr ...
exposure prior to conception, other
carcinogen A carcinogen () is any agent that promotes the development of cancer. Carcinogens can include synthetic chemicals, naturally occurring substances, physical agents such as ionizing and non-ionizing radiation, and biologic agents such as viruse ...
s, and
benzene Benzene is an Organic compound, organic chemical compound with the Chemical formula#Molecular formula, molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar hexagonal Ring (chemistry), ring with one hyd ...
exposure; however, none have been supported by the existing evidence. Intriguingly, a larger case-control study in
Lower Saxony Lower Saxony is a States of Germany, German state (') in Northern Germany, northwestern Germany. It is the second-largest state by land area, with , and fourth-largest in population (8 million in 2021) among the 16 ' of the Germany, Federal Re ...
found a correlation between the “untrained immune system” (as judged as contact with other children, vaccinations, etc.) and leukemia risk, suggested that an immature immune system that has not been challenged is at greater risk for developing malignancy, possibly secondary to an undefined environment insult.


References

{{Authority control Samtgemeinden in Lower Saxony Harburg (district) Cancer clusters