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Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing diseases, allergies, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment.
Effects of Pollution. 1  Impure air can kill many organisms including human beings. 2  Pollution can cause heart disease, throat inflammation, respiratory disease, congestion, and chest pain,. Water pollution cause due to contamination or drinking water by untreated sewage cause about 14,000 deaths per day.