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From Wikipedia


A pollutant is a waste material that pollutes air, water or soil, and is the cause of pollution.

Three factors determine the severity of a pollutant: its chemical nature, its concentration and its persistence. Some pollutants are biodegradable and therefore will not persist in the environment in the long term. However the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from degradation of DDT

Types of pollutants

Stock pollutants

Pollutants that the environment has little or no absorptive capacity are called stock pollutants (e.g. persistent synthetic chemicals, non-biodegradable plastics, and heavy metals). Stock pollutants accumulate in the environment over time. The damage they cause increases as more pollutant is emitted, and persists as the pollutant accumulates. Stock pollutants can create a burden for future generations by passing on damage that persists well after the benefits received from incurring that damage have been forgotten.

Fund pollutants

Fund pollutants are those for which the environment has some absorptive capacity. Fund pollutants do not cause damage to the environment unless the emission rate exceeds the receiving environment's absorptive capacity (e.g. carbon dioxide, which is absorbed by plants and oceans). Fund pollutants are not destroyed, but rather converted into less harmful substances, or diluted/dispersed to non-harmful concentrations.

Notable pollutants

Notable pollutants include the following groups:

Zones of influence

Pollutants can also be defined by their zones of influence, both horizontally and vertically.

Horizontal zone

The horizontal zone refers to the area that is damaged by a pollutant. Local pollutants cause damage near the emission source. Regional pollutants cause damage further from the emission source.

Vertical zone

The vertical zone is referred to whether the damage is ground-level or atmospheric. Surface pollutants cause damage by concentrations of the pollutant accumulating near the Earth's surface Global pollutants cause damage by concentrations in the atmosphere



Pollutants can cross international borders and therefore international regulations are needed for their control. The Stockholm Convention on Persistent Organic Pollutants, which entered into force in 2004, is an international legally binding agreement for the control of persistent organic pollutants. Pollutant Release and Transfer Registers (PRTR) are systems to collect and disseminate information on environmental releases and transfers of toxic chemicals from industrial and other facilities.

European Union

The European Pollutant Emission Register is a type of PRTR providing access to information on the annual emissions of industrial facilities in the Member States of the European Union, as well as Norway.

United States

Clean Air Act standards. Under the Clean Air Act, the National Ambient Air Quality Standards (NAAQS) are standards developed for outdoor air quality. The National Emissions Standards for Hazardous Air Pollutants are emission standards that are set by the Environmental Protection Agency (EPA) which are not covered by the NAAQS.

Clean Water Act standards. Under the Clean Water Act, EPA promulgated national standards for municipal sewage treatment plants, also called publicly owned treatment works, in the Secondary Treatment Regulation. National standards for industrial dischargers are calledEffluent guidelines(for existing sources) andNew Source Performance Standards, and currently cover over 50 industrial categories. In addition, the Act requires states to publish water quality standards for individual water bodies to provide additional protection where the national standards are insufficient.

RCRA standards. The Resource Conservation and Recovery Act (RCRA) regulates the management, transport and disposal of municipal solid waste, hazardous waste and <

From Encyclopedia

Environmental Pollution

Environmental pollution is the release of chemical waste that causes detrimental effects on the environment. Environmental pollution is often divided into pollution of water supplies, the atmosphere, and the soil. In his book Environmental Chemistry, Stanley Manahan lists several different types of pollutants, including toxic inorganic and organic compounds, high concentrations of normally innocuous compounds, and heat and noise. While much pollution is produced by the chemical industry, domestic sources include human waste and automobile exhaust.

From Yahoo Answers

Question:I am working on a project and it is about the environment and protecting it. Please post facts about air pollution, water pollution, and land pollution. Thanks!

Answers:Pollution is the input of undesirable chemicals and materials into an environment not capable of handling them. Air pollution: Burning of materials, aerosals, VOC volatile organic compounds, methane release for decomposition of waste Water Pollution: Human waste, industrial waste, ballast discharge, oil spills Land Pollution: Trash, Landfills, billboards (ok not really), cow manure, leaking gas stations. Below are two links that will help you more.

Question:Global Warming The world is presently facing a crisis called Global Warming that should be stopped. It is important that people must get to know about this crisis that will affect the whole humankind, and try to stop it. The U.S. Environmental Protection Agency has states and local governments and businesses play an important role in meeting the national goal of reducing greenhouse gas intensity by 18 percent by 2012. Al Gore and other scientific experts can t change global warming but we can take steps in order to decrease global warming: 1. Conservation and greater efficiency in the way you use your energy and resources. 2. Being a conscious consumer and being aware of the environmental implications on everything you buy, and every transaction you make in the marketplace. 3. And then becoming politically active regardless of what party you may be aligned with by insisting that the politicians of all parties take this as their top priority. Agricultural output in many poorer countries could be significantly reduced. An additional 80-90 million poor people could be at risk of hunger and malnutrition later in the 21st century; hundreds of millions of people will be at increased risk of malaria, dengue fever, yellow fever, encephalitis, and other infectious diseases because of global warming. Another fact, is contributing to the problem is a phenomenon known as Thermal Expansion- as seawater warms, it takes up more space so as higher temperatures from global warming heat the oceans and melt ice, the oceans will rise and encroach on what is now land. Also global sea level has already risen by four to eight inches in the past century, and scientists best estimate is that sea levels will rise by an additional 19 inches by 2100, and perhaps by as much as 37 inches. Of course, CO2 is 30% higher than it has been for 650,000 years. Methane is 130% greater. They are looking at pumping liquefied carbon underground into old gas fields and oil wells. And, doing so might help get more oil from oil fields. These are two of the main pollutants humans put into the atmosphere in excess, and they are two of the primary greenhouse gases. Another example is might be due to normal natural events but it could be also be that humans are accelerating the natural process by creating excessive amounts of pollutants. Global temperatures are expected to continue to rise as human activities continue to add carbon dioxide, methane, nitrous oxide, and other green house (or heat-trapping) gases to the atmosphere. Most of the United States is expected to experience an increase in average temperature. Unless we act now, our children will inherit a hotter world, dirtier air and water, more severe floods and droughts, and more wildfires. Most frequent and more intensive heat waves could result in more heat-related deaths. These conditions could also aggravate local air quality problems, already afflicting more than 80 million Americans. Global warming is expected to increase the potential geographic range and virulence of tropical disease as well. Therefore if the world does not start to take steps to end global warming soon, the outcomes will prove to be castrophic.

Answers:An increase in global temperatures can in turn cause other changes, including a rising sea level and changes in the amount and pattern of precipitation. There may also be increases in the frequency and intensity of extreme weather events, though it is difficult to connect specific events to global warming. Other consequences include changes in agricultural yields, glacier retreat, reduced summer streamflows, species extinctions and increases in the ranges of disease vectors. Remaining scientific uncertainties include the exact degree of climate change expected in the future, and especially how changes will vary from region to region across the globe. A hotly contested political and public debate also has yet to be resolved, regarding whether anything should be done, and what could be cost-effectively done to reduce or reverse future warming, or to deal with the expected consequences. Most national governments have signed and ratified the Kyoto Protocol aimed at combating greenhouse gas emissions.

Question:What environmental problems are caused by air pollution?

Answers:health problems ozone layer deteriation global warming monuments, statues, pyramids deteriorating, priceless artwork damage

Question:remedies to environmental pollution from waste dsisposal from demestic waste,industrial waste,agricultural waste.

Answers:I have been working on a project for some time now. It is called 'Trash to Cash' what we are doing, here in Los Angeles, Ca, USA is we are using trash for fuel to distill water, & create power. When trash is burned with a very high temp plasma flame, it produces almost Zero pollution. So, if you take dirty water, or sea water, and put it in a boiler, and evaporate it, the steam can turn a turbine & generate electricity. Further, when the steam condenses, it is pure H2O which can be used for human or plant consumption. At the moment, we are burning about 2000 tons a day (out of the 40,000 tons a day which L.A. produces), at two locations. This provides electricity to about 20,000 homes. What I would like to do is use some of the water to produce hydrogen, which could be used as fuel for cars & factories. We are getting there, the question is will it be fast enough?

From Youtube

Environmental Pollution, Environmental Problems :www.pollutionaccessment.com www.pollutionaccessment.com www.pollutionaccessment.com Online internet guide of , Water Pollution Control Equipment & Systems, Pollution Control Services, Environmental Engineers, Air Quality Measurement Equipment, Air Pollution Controls & Systems. Comprehensive...

environmental health noise pollution :environmental health noise pollution project to show what is being done in Utah to help prevent the effects of noise pollution.