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Air pollution from World War II production
Smog over Santiago, Chile
Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment into the atmosphere.
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 pollution problems in the 2008 Blacksmith Institute World's Worst Polluted Places report.[1] Contents[hide] * 1 Pollutants * 2 Sources * 2.1 Emission factors * 3 Indoor air quality (IAQ) * 4 Health effects * 4.1 Effects on cystic fibrosis * 4.2 Effects on COPD * 4.3 Effects on children * 4.4 Health effects in relatively "clean" areas * 5 Reduction efforts * 5.1 Control devices * 6 Legal regulations * 7 Cities * 8 Carbon dioxide emissions * 9 Atmospheric dispersion * 10 Environmental impacts of greenhouse gas pollutants * 11 See also * 12 References * 13 External links |
[edit] Pollutants
Main articles: Pollutant and Greenhouse gas
Before flue gas desulfurization was installed, the emissions from this power plant in New Mexico contained excessive amounts of sulfur dioxide.
Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ozone concentration, (6) increased levels of nitrogen oxides
An air pollutant is known as a substance in the air that can cause harm to humans and the environment. Pollutants can be in the form of solid particles, liquid droplets, or gases. In addition, they may be