EPA Air Quality
AIR QUALITY :
Air pollution comes from many different sources: stationary sources such as factories, power plants, and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars, buses, planes, trucks, and trains; and naturally occurring sources such as windblown dust, and volcanic eruptions, all contribute to air pollution. Air Quality can be affected in many ways by the pollution emitted from these sources. These pollution sources can also emit a wide variety of pollutants. The EPA has these pollutants classified as the six principal pollutants (or "criteria pollutants" - as they are also known). These pollutants are monitored by the EPA, as well as national, state and local organizations.
The Clean Air Act provides the principal framework for national, state, and local efforts to protect air quality. Under the Clean Air Act, EPA's Office of Air Quality Planning and Standards (OAQPS) is responsible for setting standards, also known as national ambient air quality standards (NAAQS), for pollutants which are considered harmful to people and the environment. OAQPS is also responsible for ensuring that these air quality standards are met, or attained (in cooperation with state, Tribal, and local governments) through national standards and strategies to control pollutant emissions from automobiles, factories, and other sources.
EPA is dedicated to monitoring the quality of the air we breathe.
REASONS OF AIR QUALITY DEGRADATION :
(a) due to the over population the demand of people is more, which creates industrial evolution.
(b)urbanization is another factor which creates air pollution, constructional work is also ,
(c)due to the transportation harmful gases are coming out which mix up with environment Harmful gases like corbon dioxide, dust ,smokes e.t.c released from industries and vehicals pollute the air.
• Forest fire and dust generally pollutr the rular area.
• especially sulfur dioxide, a chemical compound with the formula SO2. SO2 is produced by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide.
•
• This reddish-brown toxic gas has a characteristic sharp, biting odor. NO2 is one of the most prominent air pollutants.
• Other hydrocarbon also significant greenhouse gases via their role in creating ozone and in prolonging the life of methane in the atmosphere, although the effect varies depending on local air quality.
• Human activities, such as the burning of fossil fuels in vehicles, power plants and various industrial processes also generate significant amounts of aerosols.
• Classic smog results from large amounts of coal burning in an area caused by a mixture of smoke and sulfur dioxide
• Smoke and carbon monoxide room
• Volcanic activity, which produce sulfur, chlorine, and ash particulates
• Dust from natural sources, usually large areas of land with little or no vegetation.
• Methane, emitted by the digestion of food by animals, for example cattle
Air pollution comes from many different sources: stationary sources such as factories, power plants, and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars, buses, planes, trucks, and trains; and naturally occurring sources such as windblown dust, and volcanic eruptions, all contribute to air pollution. Air Quality can be affected in many ways by the pollution emitted from these sources. These pollution sources can also emit a wide variety of pollutants. The EPA has these pollutants classified as the six principal pollutants (or "criteria pollutants" - as they are also known). These pollutants are monitored by the EPA, as well as national, state and local organizations.
The Clean Air Act provides the principal framework for national, state, and local efforts to protect air quality. Under the Clean Air Act, EPA's Office of Air Quality Planning and Standards (OAQPS) is responsible for setting standards, also known as national ambient air quality standards (NAAQS), for pollutants which are considered harmful to people and the environment. OAQPS is also responsible for ensuring that these air quality standards are met, or attained (in cooperation with state, Tribal, and local governments) through national standards and strategies to control pollutant emissions from automobiles, factories, and other sources.
EPA is dedicated to monitoring the quality of the air we breathe.
REASONS OF AIR QUALITY DEGRADATION :
(a) due to the over population the demand of people is more, which creates industrial evolution.
(b)urbanization is another factor which creates air pollution, constructional work is also ,
(c)due to the transportation harmful gases are coming out which mix up with environment Harmful gases like corbon dioxide, dust ,smokes e.t.c released from industries and vehicals pollute the air.
• Forest fire and dust generally pollutr the rular area.
• especially sulfur dioxide, a chemical compound with the formula SO2. SO2 is produced by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide.
•
• This reddish-brown toxic gas has a characteristic sharp, biting odor. NO2 is one of the most prominent air pollutants.
• Other hydrocarbon also significant greenhouse gases via their role in creating ozone and in prolonging the life of methane in the atmosphere, although the effect varies depending on local air quality.
• Human activities, such as the burning of fossil fuels in vehicles, power plants and various industrial processes also generate significant amounts of aerosols.
• Classic smog results from large amounts of coal burning in an area caused by a mixture of smoke and sulfur dioxide
• Smoke and carbon monoxide room
• Volcanic activity, which produce sulfur, chlorine, and ash particulates
• Dust from natural sources, usually large areas of land with little or no vegetation.
• Methane, emitted by the digestion of food by animals, for example cattle