Air pollution is the introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause discomfort, disease, or death to humans, damage other living organisms such as food crops, or damage the natural environment or built environment.
The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems.
Indoor air pollution and urban air quality are listed as two of the World’s Worst Toxic Pollution Problems in the 2008 Blacksmith Institute World's Worst Polluted Places report.
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Read more about Air Pollution: Pollutants, Sources, Indoor Air Quality (IAQ), Health Effects, Reduction Efforts, Legal Regulations, Cities, NATA, Governing Urban Air Pollution – A Regional Example (London), Carbon Dioxide Emissions, Atmospheric Dispersion, Environmental Impacts of greenhouse Gas Pollutants
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... Other greenhouse gases include methane, hydrofluorocarbons, perfluorocarbons, chlorofluorocarbons, nitrogen oxides, and ozone ... This effect has been understood by scientists for about a century, and technological advancements during this period have helped increase the breadth and depth of data relating to the phenomenon ...
... Air pollution often travels from its source in one state to another state ... areas, people live in one state and work or shop in another air pollution from cars and trucks may spread throughout the interstate area ... The 1990 Clean Air Act provides for interstate commissions on air pollution control, which are to develop regional strategies for cleaning up air pollution ...
... Although the 1990 Clean Air Act is a federal law covering the entire country, the states do much of the work to carry out the Act ... For example, a state air pollution agency holds a hearing on a permit application by a power or chemical plant or fines a company for violating air pollution limits ... The federal law recognizes that states should lead in carrying out the Clean Air Act, because pollution control problems often require special understanding of local industries, geography, housing patterns, etc ...
... Since 1993 the London Air Quality Network of King's College London has coordinated the monitoring of air pollution across 30 London boroughs and ... In 2000 one measuring site exceeded EU limits for air pollution, pollution rose for two years prior to 2007 ... nine sites in London exceed the EU limits for air pollution in 2007 (up was one in 2002) ...
... The Protocol is part of the Convention on Long-Range Transboundary Air Pollution ... is an international agreement to protect human health and the natural environment from air pollution by control and reduction of air pollution, including long-range transboundary air ...
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