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what is the wnvironmenta problewm that causes ill health, accidents, crises and disasters
Air pollution can form in various ways. Chemicals are emitted during many different human activities. In the atmosphere these chemicals can react with other chemicals to more dangerous substances. [ [ Air pollutants often have properties that are harmful to the environment. The weather plays an important role in the formation and disapearance of air pollution. This is mainly influenced by wind and temperatures. Air pollutants can be transported by wind, causing a pollution to spread widely. Rain can remove pollutants from air, causing soil and water pollution. Sunlight can aid the
convertion of air pollutants to different substances. Chemicals can come from various sources, and are formed during different processes. Air pollution can be divided in categories according to the source it is derived from: - Biological air pollution, such as pollens, small insects and microrganisms (bacteria, fungi, yeasts and algae) - Physical air pollution, such as sound, smell, thermal pollution and radioactive radiation - Chemical air pollution, such as ozone, aerosols and ammonia Air pollution is caused by both human and natural sources. Human sources are traffic, agriculture or industry, as was mentioned before. Natural sources are be dust storms, volcanic eruptions and emissions from plants. Air pollution undergoes a number of processes: - Emission (contaminants are released into the air) - Transport (contaminants are transported to different locations through air) - Exchange (compounds react with other compounds in air) - Distribution (contaminants are distributed in air) - Immission (contaminants maintain in a certain area) - Deposition (contaminants are deposited in a certain area, on the soil or on objects) Read more: ] ]
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Expert answered|selymi|Points 8012|
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Asked 4/19/2012 5:28:07 AM
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