Air pollution is such concentration of solid, liquid or gaseous substance including noise and odour that may cause impairment of health or discomfort to living creatures including human being, plant, property or environment. There are regulations that specify permissible limit of concentration of identified pollutants in the atmosphere. haltonmachining
The atmosphere is a floating storage of gases and water vapours. We inherited an atmosphere created by the nature. This atmosphere with exact quantity of oxygen, nitrogen and Carbon dioxide is our life line. Of late, the atmosphere became polluted basically with various emissions from industrial process and fuel fired vehicles.
As with all natural processes, air has been provided with means to cleanse itself. The water cycle is a good cleanser of atmospheric air by way of evaporation and precipitation. These two processes together scrub the air thoroughly. We witness the end result of such cleansing in the form of acid rain where there is large concentration of Sulfur oxides.. Air pollution becomes unmanageable when pollutant load is large enough to get diluted or cleaned by natural processes. wrdesignprint
Air pollution is caused by natural disturbances such as volcano eruption, earthquakes, forest fire as well as human activities such as industrial processes and vehicular emissions. Surprisingly, no creation other than human being, add significantly to air pollution load. On the other hand, they help in mitigating pollution in their own way. Animals eat away all their kills leaving bones which helps in fertilizing the land with Calcium and Phosphate. Birds have also similar schedules. The greenery consumes Carbon dioxide and exhale Oxygen thus improving the air quality. They also absorb and adsorb particulate pollutants. Solar radiation disintegrates many pollutants. Infrared and ultraviolet extremes of solar radiation have great power of annihilating pollutants though these have some contrary contributions too. The moon also plays its little role. The tidal waves catalyzed during full moon period, absorb pollutants floating above the sea.
Human activities are the biggest contributors to pollution load. Like all living creatures, mankind also inhales Oxygen and exhale Carbon dioxide. At present, almost every activity of man is contributing to pollution. Its physical activity of any kind raises the temperature of the environment but that is what for the environment is. Its industrial activity has become a synonym to pollution of every kind. In order to capture more profit in quickest possible time, he has developed technologies aligned to this economics. This generates more waste and lesser end products. Transportation is the key to fast developing and sustained economy. Vehicular emission is one of the biggest contributors to air pollutant loads. Hazardous processes carried out in factories and old, poorly maintained vehicle give out enormous toxic emissions. For more info please visit these sites :- https://www.dkproducts.biz
Air pollutants have been classified into primary and secondary pollutants. Primaries are those which are directly emitted from a process such as ash from a volcano, Sulfur dioxide from factories and carbon monoxide from a motor vehicle. Indirect emissions are called secondary which form in the air after reaction with the primary pollutants such as ground level Ozone that develops into photochemical smog. Some pollutants may be emitted as primary and as a secondary too. Persistent free radicals, Ammonia, Chlorofluorocarbons, odors, and radioactive substances are also causes of air pollution. Particulate matter also contributes to secondary pollutants,originating from primary gaseous pollutants and compounds in photochemical smog, ground level Ozone and Peroxyacetyl Nitrate. Large number of minor hazardous toxics and persistent organic material adhering to primary pollutants are also present.
Sulfur dioxide is the most prominent oxide of sulfur which is emitted by volcanoes and industrial process. Combustion of coal and petroleum generates Sulfur dioxide. In the presence of Nitrogen dioxide, it forms Sulfuric acid which downpours as acid rain. Nitrogen dioxide, among Nitrogen oxides is emitted from high temperature combustion and is found as reddish brown toxic gas with biting odor. It is a major air pollutant.
Carbon monoxide has no colour, odor or irritating nature but is most lethal if inhaled. It is generated from incomplete combustion of natural gas, wood, and coal Vehicular emission is a major source of CO. Carbon dioxide is also emitted from such combustion and is a major reason for greenhouse effect.
Volatile organic compounds present in the atmosphere have a major role to play in greenhouse gases. Methane is an efficient greenhouse gas. Other hydrocarbons play an important role in creating Ozone and prolonging the life of Methane in the atmosphere. Benzene, Toluene, Xyline and 1,3-butadiene are carcinogen suspects present in VOCs.