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air pollution

Wikipedia definition:

Air pollution is the introduction into the atmosphere of chemicals, particulates, 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. Part of the nature series Weather Calendar seasons Spring Summer Autumn Winter Tropical seasons Dry season Wet season Storms Thunderstorm Supercell Downburst Lightning Tornado Waterspout Tropical cyclone (Hurricane) Extratropical cyclone Winter storm Blizzard Ice storm Dust storm Firestorm Cloud Precipitation Drizzle Rain Snow Graupel Ice pellets Hail Topics Meteorology Climate Weather forecasting Heat wave Air pollution Cold wave 32x28px Weather portal vte

Source: dbpedia

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