مهندس عبدالصمد احمدوند

وب سایت تخصصی ایمنی، بهداشت ، محیط زیست (HSE)

مهندس عبدالصمد احمدوند
خانه | موضوعات | موضوعات محيط زيست | آلودگي هوا | كتاب : كنترل مهندسي آلودگي هوا

كتاب : كنترل مهندسي آلودگي هوا

نویسنده
كتاب : كنترل مهندسي آلودگي هوا كتاب : كنترل مهندسي آلودگي هوا

The Engineer’s Joint Council on Air Pollution and Its Control defines air pollution as “The presence in the outdoor atmosphere of one or more contaminants, such as dust, Fumes, gas, mist, odor, smoke or vapor in quantities, of characteristics, and of duration, Such as to be injurious to human, plant, or property, or which unreasonably interferes With the comfortable enjoyment of life and property.” Air pollution, as defined above, is not a recent phenomenon. Natural events always Have been the direct cause of enormous amounts of air pollution.

The Engineer’s Joint Council on Air Pollution and Its Control defines air pollution as “The presence in the outdoor atmosphere of one or more contaminants, such as dust, Fumes, gas, mist, odor, smoke or vapor in quantities, of characteristics, and of duration, Such as to be injurious to human, plant, or property, or which unreasonably interferes With the comfortable enjoyment of life and property.” Air pollution, as defined above, is not a recent phenomenon. Natural events always Have been the direct cause of enormous amounts of air pollution. 

   Lightning, another large contributor to atmospheric pollution, activates atmospheric Oxygen (O2) to produce ozone (O3), a poisonous gas [ozone in the upper atmosphere, However, acts as a shield against excessive amounts of ultraviolet (UV) radiation, which Can cause human skin cancer]. In addition to the production of ozone, lightning is the Indirect cause of large amounts of combustion-related air pollution as a result of forest Fires. The Forest Service of the United States Department of Agriculture reported that Lightning causes more than half of the over 10,000 forest fires that occur each year. For centuries, human beings have been exposed to an atmosphere permeated by other Natural pollutants such as dust, methane from decomposing matter in bogs and swamps, And various noxious compounds emitted by forests. Some scientists claim that such natural Processes release twice the amount of sulfur-containing compounds and 10 times The quantity of carbon monoxide (CO) compared to all human activity.

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