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Air pollution may be defined as the presence of any solid, liquid or gaseous substance including noise and radioactive radiation in the atmosphere in such concentration that may be directly and indirectly injurious to humans or other living organisms, plants, property or interferes with the normal environmental processes. Air pollution and control btech civil engineering notes. Environmental engineering air pollution part i youtube. Air quality good moderate unhealthy for sensitive groups unhealthy very unhealthy alert 151200 air quality index 050 101450 200 protect your health no health impacts are expected when air quality is in this range. This document is highly rated by class 9 students and has been viewed 14675 times.
Smoke from burning forests, and photochemical smog in beijing and delhi are visible from space, but most of the air pollution in cities such as london is invisible even at ground level. Powerpoint slide on presentation on air pollution compiled by dipa chatterjee. Air pollution a free powerpoint ppt presentation displayed as a flash slide show on id. Air pollution is a mixture of solid particles and gases in the air.
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Mahendra pratap choudhary, associate professor, deptt. Air pollutants are a complex mix of chemicals emitted by human and natural sources and formed in the atmosphere. To make the students aware of history of air pollution. The subject air pollution and control is mostly taught in the third year of the civil engineering course. Air pollution and quailty control material pdf download. Air pollution occurs when gases or aerosol particles, emitted anthropogenically, build up in. Air pollution and pollutants youtube lecture handouts. Almost all living organisms rely on the gases found in the earths atmosphere, even those dwelling in the deepest oceans.
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