Air pollution in New York City
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New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
are affected by the city's size, density, abundant public transportation infrastructure, and location at the mouth of the
Hudson River The Hudson River, historically the North River, is a river that flows from north to south largely through eastern New York (state), New York state. It originates in the Adirondack Mountains at Henderson Lake (New York), Henderson Lake in the ...
. New York's population density has environmental pros and cons. It facilitates the highest
mass transit Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of whi ...
use in the United States, but also concentrates pollution.
Gasoline consumption The fuel economy of an Car, automobile relates to the distance traveled by a vehicle and the amount of fuel consumption, fuel consumed. Consumption can be expressed in terms of the volume of fuel to travel a distance, or the distance traveled ...
in the city is at the rate the national average was in the 1920s, and
greenhouse gas emissions Greenhouse gas (GHG) emissions from human activities intensify the greenhouse effect. This contributes to climate change. Carbon dioxide (), from burning fossil fuels such as coal, petroleum, oil, and natural gas, is the main cause of climate chan ...
are a fraction of the national average, at 7.1 metric tons per person per year, below San Francisco, at 11.2 metric tons, and the national average, at 24.5 metric tons. New York City accounts for only 1% of United States greenhouse gas emissions while housing 2.7% of its population.
Governors Island Governors Island is a island in New York Harbor, within the Boroughs of New York City, New York City borough of Manhattan. It is located approximately south of Manhattan Island, and is separated from Brooklyn to the east by the Buttermilk ...
in New York Harbor is planned to host a US$1 billion research and education center poised to make New York City the global leader in addressing the
climate crisis ''Climate crisis'' is a term that is used to describe global warming and climate change and their effects. This term and the term ''climate emergency'' have been used to emphasize the threat of global warming to Earth's natural environment an ...
.


Population density

Environmental concerns in the city involve managing the city's extraordinary
population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...
. Mass transit use is the highest in the nation and gasoline consumption in the city is at the rate the national average was in the 1920s. New York City's dense population and low automobile dependence help make New York among the most energy efficient in the United States. The city's greenhouse gas emission levels are relatively low when measured per capita, at 7.1 metric tons per person, below
San Francisco San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
, at 11.2 metric tons, and the national average, at 24.5. New Yorkers are collectively responsible for one percent of the nation's total
greenhouse gas emissions Greenhouse gas (GHG) emissions from human activities intensify the greenhouse effect. This contributes to climate change. Carbon dioxide (), from burning fossil fuels such as coal, petroleum, oil, and natural gas, is the main cause of climate chan ...
, though comprise 2.7% of the nation's population. The average New Yorker consumes less than half the electricity used by a resident of San Francisco and nearly one-quarter the electricity consumed by a resident of
Dallas Dallas () is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the List of Texas metropolitan areas, most populous metropolitan area in Texas and the Metropolitan statistical area, fourth-most ...
. Concentrated pollution in New York City leads to high incidence of
asthma Asthma is a common long-term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. Symptoms include episodes of wh ...
and other respiratory conditions among the city's residents. In recent years the city has focused on reducing its environmental impact. The city government is required to purchase only the most energy-efficient equipment for use in city offices and public housing. New York has the largest clean air diesel- hybrid and
compressed natural gas Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of , usually in ...
bus fleet in the country, and some of the first hybrid taxis. The city is also a leader in the construction of energy-efficient green office buildings, including the Hearst Tower among others.


Policy and influence

, the city has focused on reducing its environmental impact. The city government is required to purchase only the most energy-efficient equipment for use in city offices and public housing. New York has the largest clean-air diesel- hybrid and
compressed natural gas Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of , usually in ...
bus fleet in the country, and some of the first hybrid taxis. The city is also a leader in energy-efficient "green" office buildings, such as Hearst Tower and
7 World Trade Center 7 World Trade Center (7 WTC, WTC-7, or Tower 7) is an office building constructed as part of the new World Trade Center (2001–present), World Trade Center in Lower Manhattan, New York City. The tower is located on a city block bounded by Gr ...
. Environmental groups make large efforts to help shape legislation in New York because they see the strategy as an efficient way to influence national programs. New York City's economy is larger than Switzerland's, a size that means the city has potential to set new ''de facto'' standards. Manufacturers are also attuned to the latest trends and needs in the city because the market is simply too big to ignore. Ex-mayor
Michael Bloomberg Michael Rubens Bloomberg (born February 14, 1942) is an American businessman and politician. He is the majority owner and co-founder of Bloomberg L.P., and was its CEO from 1981 to 2001 and again from 2014 to 2023. He served as the 108th mayo ...
is one of 248 mayors from 41 states to have signed the U.S. Mayors Climate Protection Agreement. Under the agreement, mayors "strive to meet or beat the Kyoto Protocol targets in their own communities". The city was a petitioner in the landmark '' Massachusetts v. Environmental Protection Agency'' Supreme Court case forcing the EPA to regulate
greenhouse gases Greenhouse gases (GHGs) are the gases in the atmosphere that raise the surface temperature of planets such as the Earth. Unlike other gases, greenhouse gases absorb the radiations that a planet emits, resulting in the greenhouse effect. T ...
as pollutants.


Environmental injustices

Throughout the history of New York City, there has been undenied mistreatment of vulnerable populations in various aspects which has led to present day environmental injustices that plague many of the neighborhoods that these people live in. This is piled on with current day issues that worsen the quality of life for many individuals. As a result, there has been more of a push for more
environmental justice Environmental justice is a social movement that addresses injustice that occurs when poor or marginalized communities are harmed by hazardous waste, resource extraction, and other land uses from which they do not benefit. The movement has gene ...
in New York City as many are fighting for safer environments to live in.


Redlining

The current state of many deteriorating New York City neighborhoods is the result of the long history of
redlining Redlining is a Discrimination, discriminatory practice in which financial services are withheld from neighborhoods that have significant numbers of Race (human categorization), racial and Ethnic group, ethnic minorities. Redlining has been mos ...
. This resulted in many areas (those with high minority populations) not receiving proper development, investment, and poor infrastructure decisions. Some examples of the issues of redlining include lack of green spaces in low-income minority neighborhoods, the placement of highways in The Bronx, higher incidents of asthma in low-income neighborhoods, and low-income minority neighborhoods being overburdened with waste transfers. These are just a few of the many issues present in the city.


Energy efficiency

The city's uniquely high density, encouraged by much of it being surrounded by water, facilitates the highest rate of mass transit use in the United States. New York is one of the most energy efficient cities in the United States as a result. Gasoline consumption in New York is at the rate the national average was in the 1920s.Jervey, Ben
"The Big Green Apple: Your Guide to Eco-Friendly Living in New York City"
, ''Metro New York''.
The city's mass transit system, multifamily housing, mixed neighborhoods and the fact that
greenfield land Greenfield land is a British English term referring to undeveloped land in an urban or rural area either used for agriculture or landscape design, or left to evolve naturally. These areas of land are usually agricultural or amenity properties ...
is no longer available to development, make building in New York very energy efficient. New York City has a larger population than all but eleven states, and consumes less energy per-capita than any. The average New Yorker consumes a little more than half of the electricity of someone who lives in Chicago and nearly one-quarter the electricity consumed by someone who lives in Dallas. Nevertheless, New York faces growing energy demands and limited space. The city has introduced a series of environmental policies since the 1990s to address these problems. Detailed measures included switching more than 11,000 traffic lights and pedestrian signals in the city to new energy-efficient
light-emitting diodes A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresp ...
that use 90% less energy than conventional fixtures. The city replaced 149,000 "cobra head" street lights with new energy-efficient designs by 2008. Over 180,000 inefficient refrigerators in public housing projects have been replaced with new ones that use a quarter of the power of the old ones. By law, the city government can purchase only the most efficient cars, air-conditioners and copy machines. The electricity used to power the
Statue of Liberty The Statue of Liberty (''Liberty Enlightening the World''; ) is a colossal neoclassical sculpture on Liberty Island in New York Harbor, within New York City. The copper-clad statue, a gift to the United States from the people of French Thir ...
,
Ellis Island Ellis Island is an island in New York Harbor, within the U.S. states of New Jersey and New York (state), New York. Owned by the U.S. government, Ellis Island was once the busiest immigrant inspection and processing station in the United State ...
and 22 other federal buildings in New York City, an annual electricity demand of roughly 27 million kilowatt hours, is provided by wind power. New York City is home to several clean energy projects. Two attempts to provide electricity to
Roosevelt Island Roosevelt Island is an island in New York City's East River, within the Borough (New York City), borough of Manhattan. It lies between Manhattan Island to the west, and the borough of Queens, on Long Island, to the east. It is about long, wit ...
by installing underwater turbines in the
East River The East River is a saltwater Estuary, tidal estuary or strait in New York City. The waterway, which is not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates Long Island, ...
failed when the turbine blades were torn off by currents. An improved turbine design proved to be successful and on January 23, 2012 FERC issued a 10-year pilot commercial license to Verdant Power's RITE Project – the first commercial license for tidal power in the United States. Under the license, Verdant Power expects to generate up to 1 megawatt after a staged installation of up to 30 turbines. Planning is also underway to construct windmills on a hill in the former
Fresh Kills Landfill The Fresh Kills Landfill was a landfill covering in the borough of Staten Island in New York City, United States. The name comes from the landfill's location along the banks of the Fresh Kills estuary in western Staten Island. The landfill op ...
. The wind energy project would power 5,000 homes on Staten Island.


Transportation

New York is distinguished from other American cities by its extensive use of
public transportation Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of whi ...
. While nearly 90% of Americans drive to their jobs, public transit is overwhelmingly dominant for New Yorkers. According to the 2000 U.S. Census, New York City is the only locality in the United States where more than half of all households do not own a car (the figure is even higher in Manhattan, over 75%; nationally, the rate is 8%). About one-third of users of mass transit in the United States and two-thirds of the nation's rail riders live in New York and its suburbs, and New York City's public transit system accounts for nearly four times as many passenger miles as the
Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...
, and
Los Angeles Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
metro regions combined. Only 6% of shopping trips by New Yorkers involve the use of a car.
Congestion pricing in New York City Congestion pricing in New York City, also known as the Central Business District Tolling Program or CBDTP, began on January 5, 2025. It applies to most motor vehicular traffic using the central business district area of Manhattan south of 6 ...
was approved in March 2024 and is expected to be implemented in June, pending the outcome of lawsuits. New York City's high rate of transit use saved of oil in 2006 and $4.6 billion in gasoline costs. New York saves half of all the oil saved by transit nationwide. The reduction in oil consumption meant 11.8 million metric tons of carbon dioxide pollution was kept out of the air. The city's extraordinary public transit use means that New Yorkers emit far fewer greenhouse gases on a per capita basis than the average American. New York City's greenhouse gas emissions are 7.1 metric tons per person compared with the national average of 24.5. New Yorkers are collectively responsible for one percent of the nation's total
greenhouse gas emissions Greenhouse gas (GHG) emissions from human activities intensify the greenhouse effect. This contributes to climate change. Carbon dioxide (), from burning fossil fuels such as coal, petroleum, oil, and natural gas, is the main cause of climate chan ...
though comprising 2.7% of the nation's population.


Green building

For years New York City was slow to embrace
green building Green building (also known as green construction, sustainable building, or eco-friendly building) refers to both a structure and the application of processes that are environmentally responsible and resource-efficient throughout a building's li ...
guidelines used in cities like San Francisco to promote
environmentally friendly Environment friendly processes, or environmental-friendly processes (also referred to as eco-friendly, nature-friendly, and green), are sustainability and marketing terms referring to goods and services, laws, guidelines and policies that c ...
construction. In the post-World War II construction boom, changes in zoning regulations and the widespread use of air conditioning led to the design of sealed glass and steel towers. Without natural sources of light and ventilation, such buildings required large amounts of fossil fuels to operate. This phase of building style is rapidly changing in New York, which has become a leader in energy-efficient green office buildings like
7 World Trade Center 7 World Trade Center (7 WTC, WTC-7, or Tower 7) is an office building constructed as part of the new World Trade Center (2001–present), World Trade Center in Lower Manhattan, New York City. The tower is located on a city block bounded by Gr ...
, which recycles rainwater and uses it in toilets and for irrigation, and computer-controlled heating and lighting. The United States Green Building Council estimates 3,000 new green apartments in New York City have been built since 2001. In 2000 the state of New York introduced a green building tax credit, the first one of its kind in the United States, that has allowed some developers of environmentally friendly buildings to write off as much as $6 million on their tax bill. The city's Department of Design and Construction developed a set of guidelines in 1999 that encourage environmentally sound building methods for municipal projects. The guidelines had led to approximately $700 million in green city construction projects by the end of 2005. In 2005, New York City mandated that nonresidential public buildings costing $2 million or more be built to standards set by
Leadership in Energy and Environmental Design Leadership in Energy and Environmental Design (LEED) is a Green building certification systems, green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating ...
(LEED), which grade buildings in areas like energy and water consumption,
indoor air quality Indoor air quality (IAQ) is the air quality within buildings and Nonbuilding structure, structures. Poor indoor air quality due to indoor air pollution is known to affect the health, comfort, and well-being of building occupants. It has also be ...
and use of renewable materials. The legislation also applies to private projects that receive $10 million or more in public funds or half of whose budgets come from public money.


Air pollution

Prior to the passage of the federal
Clean Air Act of 1970 The Clean Air Act (CAA) is the United States' primary federal air quality law, intended to reduce and control air pollution nationwide. Initially enacted in 1963 and amended many times since, it is one of the United States' first and most in ...
and other local and state regulations in the late 60s, New York City suffered severe
smog Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words ''smoke'' and ''fog'' to refer to smoky fog due to its opacity, and odour. The word was then inte ...
, with several instances of major smog events like the 1966 New York City smog.


High cancer risk from airborne chemicals

According to the most recent U.S. Environmental Protection Agency (EPA) National-Scale Air Toxics Assessment study, residents of
New York County Manhattan ( ) is the most densely populated and geographically smallest of the five boroughs of New York City. Coextensive with New York County, Manhattan is the smallest county by area in the U.S. state of New York. Located almost entire ...
, NY (Manhattan), have the third highest cancer risk caused by airborne chemicals of all counties in the United States (including the District of Columbia, Puerto Rico, and the Virgin Islands). Manhattan follows only Tippah County, Mississippi (highest risk), and
Boyd County, Kentucky Boyd County is a County (United States), county located in the Commonwealth (U.S. state), U.S. Commonwealth of Kentucky. As of the 2020 United States census, 2020 census, its population was 48,261. The county seat is Catlettsburg, Kentucky, Cat ...
(second highest risk).
Bronx The Bronx ( ) is the northernmost of the five Boroughs of New York City, boroughs of New York City, coextensive with Bronx County, in the U.S. state of New York (state), New York. It shares a land border with Westchester County, New York, West ...
and Kings Counties rank 8th and 9th out of the 3,223 counties and county-equivalents in the United States, while
Queens Queens is the largest by area of the Boroughs of New York City, five boroughs of New York City, coextensive with Queens County, in the U.S. state of New York (state), New York. Located near the western end of Long Island, it is bordered by the ...
County ranks 13th nationwide. The 2024 annual report of the
American Lung Association The American Lung Association is a voluntary health organization whose mission is to save lives by improving lung health and preventing lung disease through education, advocacy and research. History 1904–1918: Founding The organization was ...
ranks the New York City region as 13th of the 25 most polluted cities by ozone.


Air pollution exposure and risk of violent behavior

Although the environmental basis of violent behaviors is not well understood, scientists have been able to link
air pollution Air pollution is the presence of substances in the Atmosphere of Earth, air that are harmful to humans, other living beings or the environment. Pollutants can be Gas, gases like Ground-level ozone, ozone or nitrogen oxides or small particles li ...
to violent and aggressive behaviors in humans. A 2019 study reported emerging evidence that air pollution causes aggressive or impulsive reactions in people. The study was designed to estimate the change in violent and nonviolent criminal behavior risk associated with short-term air pollution in U.S. counties. The study used daily monitoring data for ozone from EPA, and
Federal Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
crime data, for 2002 to 2013. The study evaluated the exposure-response relation and assessed differences in risk by community characteristics of poverty, urbanicity, race, and age. The findings suggest that even a slight increase in air pollution can result in violent behavior, regardless of the community type. A 2022 research paper by Wesselbaum Dennis studied the effect of weather and air pollution on violent crime and homicides in New York City, using data collected from all the crimes committed in NYC between 2006 and 2020. He concluded that the pollutant
carbon monoxide Carbon monoxide (chemical formula CO) is a poisonous, flammable gas that is colorless, odorless, tasteless, and slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the si ...
, when present in high concentration increased violent crimes in the city in a U-shaped relation. New York City is ranked the second most polluted in urban air quality compared to other New York State cities. However with air pollutant increasing during February, June through August, November and December, it was not on the FBI 2022’s ten most dangerous cities in New York State.


Emissions management and community impact

New York has the largest hybrid bus fleet in the country, and some of the first hybrid taxis. A large percentage of the city-owned vehicle fleet, including the personal cars of top city officials, are required since 2005 to be fuel efficient hybrid vehicles like the
Toyota Prius The is a Compact car, compact/small family car, small family liftback (supermini/subcompact sedan (car), sedan until 2003) produced by Toyota. The Prius has a Hybrid vehicle drivetrain, hybrid drivetrain, combined with an internal combustion ...
or
Honda Accord The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
gas-electric sedan that produce minimal particulates and carbon dioxide emissions. In 2005 the city's vehicle fleet had 6,000 alternative fuel and 70 electric vehicles. A
biodiesel Biodiesel is a renewable biofuel, a form of diesel fuel, derived from biological sources like vegetable oils, animal fats, or recycled greases, and consisting of long-chain fatty acid esters. It is typically made from fats. The roots of bi ...
processing plant will soon open in Brooklyn that will process of biodiesel a year and distribute it to conventional gas stations in the city. The Department of Sanitation, which has 1,500 trucks of its 2,200-vehicle fleet on the streets each day, is working with truck manufacturers to introduce gas-electric hybrid garbage trucks. The Department switched to using low-sulfur fuel in 2001 and uses corn-based ethanol in 500 of its 1,500 light-duty trucks. Air pollution is an ongoing political issue in neighborhoods that contain bus depots. A combination of stakeholder interests regarding profit and a lack of space in NYC leads to air pollution being a difficult issue to solve. Waste Factories and other sources of air pollution besides bus depots affect NYC, and particularly affect boroughs like the Bronx and parts of Manhattan. In New York City, low-income neighborhoods like those in Northern Manhattan and the Bronx, bear a disproportionate share of pollution sources. Health experts have long believed this is the result of environmental racism. This can be defined as “the planned and deliberate targeting of Black and Brown communities in deciding where to place roadways, toxic waste facilities, along with industrial and commercial sites like bus depots and tractor trailer distribution centers” (Dow, 2020). The Bronx is one of the poorest counties in all of America. When compared to the other boroughs and counties of New York, Bronx County accounts for the highest rate of asthma related emergency room admissions in both the city and the state. The
South Bronx The South Bronx is an area of the Boroughs of New York City, New York City borough of the Bronx. The area comprises neighborhoods in the southern part of the Bronx, such as Concourse, Bronx, Concourse, Mott Haven, Bronx, Mott Haven, Melrose, B ...
is particularly affected. Asthma is the leading cause of hospitalizations and school absences for Bronx children (Warman et al., 2009). In 2016, there were 42,712 asthma related emergency room admissions in New York City for children ages 0–17. The Bronx accounted for approximately 38% of these cases with 16,378 admissions (Citizens’ Committee for Children, 2016). Bronx residents are also disproportionately burdened by exposure to transportation generated air pollution. For example, a ring of major highways surrounds the South Bronx: the
Cross Bronx Expressway The Cross Bronx Expressway is a major controlled-access highway, freeway in the New York City borough of the Bronx. It is mainly designated as part of Interstate 95 in New York, Interstate 95 (I-95), but also includes portions of Interstate ...
, Major Deegan Expressway, and the Sheridan Expressway. Bus depots, sanitation centers, and shipping facilities also account for the higher rates of emission exposure. Health professionals and researchers believe that these glaring disparities created a "perfect storm of events" that led to the Bronx becoming an early COVID-19 epicenter.


Water supply

Many of the city's environmental assets are related to geography and a long tradition of environmental stewardship in the mountain ranges north of the city. Because much of the watershed is in one of the largest protected wilderness areas in the United States, the natural water filtration process remains fairly effective, but has been supplemented with engineered filtration and ultraviolet disinfection systems in the early 21st century. All water entering New York City's distribution system is treated with
chlorine Chlorine is a chemical element; it has Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between ...
,
fluoride Fluoride (). According to this source, is a possible pronunciation in British English. is an Inorganic chemistry, inorganic, Monatomic ion, monatomic Ion#Anions and cations, anion of fluorine, with the chemical formula (also written ), whose ...
, food-grade phosphoric acid, and, in some cases,
sodium hydroxide Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula . It is a white solid ionic compound consisting of sodium cations and hydroxide anions . Sodium hydroxide is a highly corrosive base (chemistry), ...
, to comply with the New York State Sanitary Code and federal
Safe Drinking Water Act The Safe Drinking Water Act (SDWA) is the primary federal law in the United States intended to ensure safe drinking water for the public. Pursuant to the act, the Environmental Protection Agency (EPA) is required to set standards for drinking wa ...
disinfection requirements. Fluoride, at a concentration of one part per million, is added to help prevent tooth decay and has been added since 1966 in accordance with the New York City Health Code. Phosphoric acid is added to create a protective film on pipes that reduces the release of metals such as
lead Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleabl ...
and
copper Copper is a chemical element; it has symbol Cu (from Latin ) 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 pinkish-orang ...
from household plumbing. The complex
New York City water supply system The New York City water supply system is a combination of Aqueduct (water supply), aqueducts, reservoirs, and tunnels which supplies fresh water to New York City. With three major water systems (New Croton Aqueduct, Croton, Catskill Aqueduct, Ca ...
—with 19 reservoirs bringing mountain water from as far as away through a gravity-fed web of aqueducts — consists of three different systems. The Croton system, the oldest and smallest section, sits in Westchester and Putnam Counties. The second oldest is the Catskill system. In the early years of the 20th century, the city and state allocated thousands of acres in the eastern
Catskill Mountains The Catskill Mountains, also known as the Catskills, are a physiographic province and subrange of the larger Appalachian Mountains, located in southeastern New York. As a cultural and geographic region, the Catskills are generally defined a ...
to build two reservoirs that more than doubled the city's capacity. In the 1950s and 1960s, the city expanded again with the Delaware Aqueduct, tapping the east and west branches of the
Delaware River The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States. From the meeting of its branches in Hancock, New York, the river flows for a ...
and other tributaries to create the newest and largest of its three systems. The Croton system is the source of some
turbidity Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of both water clarity and wa ...
issues for the city's water. The turbidity problem stems largely from conditions that have been present in the Catskill system from the beginning. Engineering studies in 1903 recognized that the clay of the steeply sloped eastern Catskills turned the clear waters of the Schoharie and Esopus Creeks muddy after storms. Engineers decided to go ahead anyway, devising a two-reservoir system with built-in turbidity controls. The city has sought to restrict development throughout its watershed. One of its largest watershed protection programs is the Land Acquisition Program, under which the
New York City Department of Environmental Protection The New York City Department of Environmental Protection (DEP) is the department of the government of New York City that manages the city's water supply and works to reduce air, noise, and hazardous materials pollution. Under a 1.3 billion do ...
has purchased or protected through conservation easement over 70,000 acres (280 km2) since 1997. Turbidity problems continued in the Croton system throughout the 20th century, leading to violations of environmental regulations and a 1997 lawsuit against the city by the federal government and the State of New York. In response the city built the Croton Water Filtration Plant, which began operation in 2015. The city added ultraviolet disinfection (UV) treatment in the early 21st century, to eliminate
protozoa Protozoa (: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. Historically ...
such as ''
cryptosporidium ''Cryptosporidium'', sometimes called crypto, is an apicomplexan genus of alveolates which are parasitism, parasites that can cause a respiratory and gastrointestinal illness (cryptosporidiosis) that primarily involves watery diarrhea (inte ...
'' and ''
giardia ''Giardia'' ( or ) is a genus of anaerobic flagellated protozoan parasites of the phylum Metamonada that colonise and reproduce in the small intestines of several vertebrates, causing the disease giardiasis. Their life cycle alternates be ...
''. The
Catskill-Delaware Water Ultraviolet Disinfection Facility The Catskill-Delaware Water Ultraviolet Disinfection Facility is a ultraviolet (UV) water disinfection plant built in Westchester County, New York, to disinfect water for the New York City water supply system. The compound is the largest ultravio ...
opened in 2013, and a UV system was included in the new Croton filtration plant (2015). In the 12 months that ended on June 30, 2006, daily consumption averaged in the city, a decline of 5.2% since 2002 and the lowest total daily use since 1951, when the city had about 7.9 million people and New York was experiencing a severe drought. Daily consumption peaked at in 1979; in the next year's census, the city's population was 7.1 million, its lowest since 1930. Despite having grown to a population of 8.2 million in 2006, the city is now using 28% less water than it did in 1979. The drop in consumption is mostly a result of city policy; water-saving plumbing fixtures and devices in renovations and new construction are required, the city has been more diligent in finding and fixing leaks, and since the late 1980s it has been metering residential customers’ water use. The city uses sonar and other equipment to more efficiently find and fix leaks in its millions of feet of water mains and has taken steps like installing sprinkler caps on fire hydrants during the summer, letting overheated kids cool off without torrents of gushing water.


Garbage disposal

In September 2012, ''
Travel+Leisure Travel + Leisure Co. (formerly Wyndham Destinations, Inc., and Wyndham Worldwide Corporation) is an American timeshare company headquartered in Orlando, Florida. It develops, sells, and manages timeshare properties under several vacation owners ...
'' named New York City the #1 'America's Dirtiest City', from the results of a readership survey rating 35 "Favorite Cities" in the United States. In 2001 Mayor
Rudolph Giuliani Rudolph William Louis Giuliani ( , ; born May 28, 1944) is an American politician and disbarred lawyer who served as the 107th mayor of New York City from 1994 to 2001. He previously served as the United States Associate Attorney General fr ...
closed the
Fresh Kills Landfill The Fresh Kills Landfill was a landfill covering in the borough of Staten Island in New York City, United States. The name comes from the landfill's location along the banks of the Fresh Kills estuary in western Staten Island. The landfill op ...
on
Staten Island Staten Island ( ) is the southernmost of the boroughs of New York City, five boroughs of New York City, coextensive with Richmond County and situated at the southernmost point of New York (state), New York. The borough is separated from the ad ...
. The City did not have a subsequent plan for garbage disposal. An interim system was put in place in which most of the city's garbage was trucked out of the city to landfills in other states. In 2006 Mayor
Michael Bloomberg Michael Rubens Bloomberg (born February 14, 1942) is an American businessman and politician. He is the majority owner and co-founder of Bloomberg L.P., and was its CEO from 1981 to 2001 and again from 2014 to 2023. He served as the 108th mayo ...
signed legislation establishing a new solid waste management plan, which will use barges and trains to export 90% of the city's 12,000 daily tons of residential trash. Under the previous scheme trucks and tractor-trailers were used for 84% of the trash. Passage of the new legislation was delayed by opponents in a Manhattan neighbourhood who protested the use of a marine transfer station in the
Hudson River Park Hudson River Park is a waterfront park on the North River (Hudson River) that extends from 59th Street south to Battery Park in the New York City borough of Manhattan. The park, a component of the Manhattan Waterfront Greenway, stretches and ...
. Environmentalists and social activists argued the plan promoted
environmental justice Environmental justice is a social movement that addresses injustice that occurs when poor or marginalized communities are harmed by hazardous waste, resource extraction, and other land uses from which they do not benefit. The movement has gene ...
because no one borough or neighbourhood would bear a disproportionate burden under the proposal, and they, therefore, supported it.


Other issues

Much of the city's housing stock is old, and lead paint is an ongoing public health issue. Some parts of the city are also at risk if current global warming patterns continue and sea levels rise. The city is home to several thriving non-native species of plants and animals. Populations of wild South American
monk parakeet The monk parakeet (''Myiopsitta monachus''), also known as the monk parrot or Quaker parrot, is a species of true parrot in the family Psittacidae. It is a small, bright-green parrot with a greyish breast and greenish-yellow abdomen. Its averag ...
s, also known as the Quaker parrot, live in Greenwood Cemetery, Marine Park, Bensonhurst, and Bay Ridge in Brooklyn, and in the East Bronx.


Farmers' markets

In 1976 the Council on the Environment of New York City established the Greenmarket program, which provides regional small family farmers opportunities to sell their fruits, vegetables and other farm products at open-air markets in city public squares. The Greenmarket program manages 45 markets in the five boroughs. More than 100 New York City restaurants source their ingredients from Greenmarket farmers each week; Greenmarket farmers also annually donate about 500,000 pounds of food to City Harvest and other hunger relief organizations each year. The most famous location is the Union Square Greenmarket, held Monday, Wednesday, Friday, and Saturday between 8 a.m. and 6 p.m. year-round. The market has 250,000 customers a week who purchase 1,000 varieties of fruits and vegetables at the market. The markets are anchored by 164 farmers who travel a median distance of , including 90 vegetable and orchard growers, 29 meat, dairy, poultry, wool and fish producers, 12 producers of honey,
maple syrup Maple syrup is a sweet syrup made from the sap of maple trees. In cold climates, these trees store starch in their trunks and roots before winter; the starch is then converted to sugar that rises in the sap in late winter and early spring. Ma ...
, jam, and wine, 19 growers of plants and flowers, and 14 bakers. In 2006 the City Council announced it would make
farmers' market A farmers' market (or farmers market according to the AP stylebook, also farmer's market in the Cambridge Dictionary) is a physical retail marketplace intended to sell foods directly by farmers to consumers. Farmers' markets may be indoors or ...
s the centerpiece of efforts to reduce hunger and increase awareness of nutrition in the city, especially in lower-income areas, and that 10 new farmers' markets would open serving low-income neighborhoods including
public housing Public housing, also known as social housing, refers to Subsidized housing, subsidized or affordable housing provided in buildings that are usually owned and managed by local government, central government, nonprofit organizations or a ...
projects.


Greenpoint oil spill

The Greenpoint neighborhood of Brooklyn was once home to many
oil refineries An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied pet ...
for more than a century. In 1950,
Mobil Mobil Oil Corporation, now known as just Mobil, is a petroleum brand owned and operated by American oil and gas corporation ExxonMobil, formerly known as Exxon, which took its current name after history of ExxonMobil#merger, it and Mobil merge ...
was alleged to have spilled of oil into
Newtown Creek Newtown Creek, a long tributary of the East River, is an estuary that forms part of the border between the boroughs of Brooklyn and Queens, in New York City. River engineering#Channelization, Channelization made it one of the most heavily-use ...
in what is one of the worst oil spills in United States history. Oil continues seeping into a city waterway decades after the leak was first noticed. The oil business has largely moved elsewhere, but countless small and large spills went unnoticed for decades and eventually formed a subterranean blob of more than . Authorities have been aware of the problem since 1978.
ExxonMobil Exxon Mobil Corporation ( ) is an American multinational List of oil exploration and production companies, oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the Successors of Standard Oil, largest direct s ...
accepted responsibility for much of the damage in 1990 and has since pumped some out of the ground. The slow pace of the cleanup, however, has increasingly angered Greenpoint residents and elected officials, who have launched a series of lawsuits against ExxonMobil in 2004. In June 2006 the
New York State Department of Environmental Conservation The New York State Department of Environmental Conservation (informally referred to as NYSDEC, DEC, EnCon or NYSENCON) is a department of New York state government. The department guides and regulates the conservation, improvement, and protecti ...
announced it would sue ExxonMobil to hasten completion of the cleanup.


Skyscrapers

Recent studies have shown that the city may be sinking into the ocean due to the excessive amount of Skyscrapers in Lower Manhattan. Other studies have shown that the city is built on bedrock and it is sinking due to global warming and rising water levels.


Pests

There are typically 40-50 rats within a colony, and rat colonies are territorial. Two colonies are unlikely to inhabit the exact location, which would suggest what the rat population within New York would be. A 2014 paper estimated the rat population of New York City proper to be about 2 million, or one for every four people. In 2013 Evangelista ''et al.'' first detected the Japanese cockroach (''Periplaneta japonica''). The Japanese joins four congeners that already inhabited the city (and other cities in North and South America), '' P. americana'', '' P. fuliginosa'', '' P. brunnea'', and '' P. australasiae''. This is the first detection of ''P. japonica'' anywhere in North America. Carlen & Munshi-South 2020 find that the city's building landscape is ''helping''
feral pigeon Feral pigeons are birds derived from domesticated populations of the rock dove ''Columba livia'', descendants that have escaped and are living independently from (and often unwanted by) humans, having gone "feral". They are sometimes given the ...
gene flow here, contrary to the case of rats (see ). In 2010, a rising number of
bed bug Bed bugs are parasitic insects from the genus ''Cimex'', which are micropredators that haematophagy, feed on blood, usually at night. Their bites can result in a number of health impacts, including skin rashes, psychological effects, and aller ...
s were reported in the city.


See also

*
Climate change in New York City Climate change in New York City could affect buildings and infrastructure, wetlands, water supply, public health, and energy demand, due to the high population and extensive infrastructure in the region. As a seaport, New York is especially at ri ...
*
Health effects arising from the September 11 attacks Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the human body, absent of disease, pain ...
*
New York City Department of Environmental Protection The New York City Department of Environmental Protection (DEP) is the department of the government of New York City that manages the city's water supply and works to reduce air, noise, and hazardous materials pollution. Under a 1.3 billion do ...
* OneNYC * PlaNYC


References


Further reading

* Burnstein. Daniel Eli. ''Next to Godliness: Confronting Dirt and Despair in Progressive Era New York City'' (University of Illinois Press, 2006) * * Glenna, Leland L. "Value-laden technocratic management and environmental conflicts: The case of the New York City watershed controversy." ''Science, technology, & human values'' 35.1 (2010): 81-112
online
* Hershkowitz, Allen. ''Bronx ecology: Blueprint for a new environmentalism'' (Island Press, 2002
online
* Kiechle, Melanie A. "The air we breathe": nineteenth-century Americans and the search for fresh air" (PhD. Diss. Rutgers University-Graduate School-New Brunswick, 2012
online
* Lifset, Robert D. ''Power on the Hudson: Storm King Mountain and the Emergence of Modern American Environmentalism'' (2014) * Owen, David. "Green Manhattan." ''The New Yorker'' 80.31 (2004): 111-23
online
* Pfeffer, Max J., and J. Mayone Stycos. "Immigrant environmental behaviors in New York city." ''Social Science Quarterly'' 83.1 (2002): 64-81. * Preston, Christopher J., and Steven H. Corey. "Public health and environmentalism: Adding garbage to the history of environmental ethics." ''Environmental ethics'' 27.1 (2005): 3-21. * Rochard, Hugo. "Civic environmentalism and urban renaturation politics: case studies from the greater Paris and New York City." ''Journée du LIEPP'' 2021
online
* Rome, Adam. ''The Bulldozer in the Countryside: Suburban Sprawl and the Rise of American Environmentalism'' (Cambridge University Press, 2001). * *


External links


New York City Office of Environmental Coordination


{{DEFAULTSORT:Environmental Issues In New York City Recycling in New York City Environmental justice in New York City Air pollution in New York City