Air pollution consists of substances in the atmosphere, which is detrimental to the environment, human health, and the quality of life. These substances in the atmosphere are caused from every day human activity such as burning fossil fuels- natural gas, coal, and oil- to power automobiles and to warm houses. Air pollution is such a broad term, Ross, R.D. Air Pollution and Industry. Academic Press: (1973), 1 stated that pollutant can be any chemicals when put into the atmosphere either purposely or through some act of nature reduces the oxygen content or significantly changes the composition of the are, which creates many forms of pollution such as acid rain, greenhouse gases, photochemical smog, particulates, domestic

Substances Committee was founded in 1941 and has since played a huge part in chemical plants and industries.

We can prevent or control the air pollution problem. Many agencies and organizations have been formed in order to ensure that mankind can live on this planet for a long as possible. Two in particular are The American Conference of Governmental Industrial Hygienists (ACGIH) and the US Environmental Protection Agency (EPA). The ACGIH explains how their goal is "to encourage the interchange of experience among industrial hygiene workers and to collect and make accessible such information and data as might be of aid to them in the proper fulfillment of their duties." The organization includes many professionals that research and provide critical information and recommended practices to industrial hygienists around the world. One of its best-known practices includes investigating and reviewing exposure limits on chemical substances. TLV, or threshold limit value is the measurement of the concentration of air pollutants or chemicals that can affect human health. The TLV for Chemical!

Fundamentals of Air Pollution. Academic Press: (1973) 19-20 stated that as temperature

Melbourne: Van Norstand Reinhold Company (1972)

Common feature of the troposphere of densely populated areas is smog, which restricts visibility and is irritating to the eyes and throat. Smog is the accumulation of pollutants such oxides, sulfur, and nitrogen from man made sources like fuel combustion of transportation and from electric utilities, the burning of coals. These accumulations are close to the surface under the inversion layer and undergo a series of chemical reactions when the sun is out. The oxides of nitrogen play important roles in a wide range of atmospheric processes, which include the formation of aerosols, photochemical reactions in both the troposphere and stratosphere. Waters moves between the earth and the atmosphere, which is called the water cycle. These pollutant form acid precipitation, and the degradation of air quality in urban areas were described from the Committee on the Atmosphere & the Biosphere, Board on Agriculture and Renewable Resources, Commission on Natural Resources National Researc!

Stern, Arthur C., Wohlers, Henry C., Boubel, Richard W., Lowry, William P. (1973).

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Approximate Word count = 1907
Approximate Pages = 8 (250 words per page double spaced)