Air pollution 2 category divided by the occurrence of1. primary air pollutants (Primary Air Pollutants)As air pollutants that arise directly from the source and origin of thukrabai chain, sulphur dioxide (SO2) carbon dioxide (CO), nitrogen oxide gases (Nitrogen Oxides) and hydrocarbon (HC) volatile organic compounds (VOCs), and carbon dust, smoke, fuel combustion in vehicles and industrial furnaces, etc. Pollution control can be controlled from the source directly.2. secondary air pollutants (Secondary Air Pollutants)As air pollutants that are not born and thukrabai from birth palong, but arise from the chemical reaction between primary air pollutants with gas and suspension in the atmosphere.Like a chemical reaction caused by ozone gas, the use of light (Photochemical Oxidation) during the nitrogen oxide gases with other hydrocarbon compounds. Secondary air pollutants, such as hydrogen sulfide and other gases and dust, lead, etc.
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