Saturday, November 29, 2014

Air Pollution: Comes from many sources



















There are air pollutants we can see and others invisibles for human’s sight. The pollutants proceed for many sources and the smog that we can see over the cities is not the only one. The main pollutant is carbon dioxide which causes more damage to the ozone layer and contributes to global warming. The carbon dioxide is a gas emitted by living things through the breathe process, this gas is associated to cars, planes, power plants and other human activities that involve the burning of gasoline and gas natural.


Other pollutant is methane which comes from swamps and gas emitted by cattle. The chlorofluorocarbon is an air pollutant which comes from aerosol and refrigerants, this one affects directly the ozone layer. The sulfur dioxide is a pollutant related with smog and is the cause of acid rain but this pollutant reflects the sunlight when it’s present in atmosphere that means the sulfur dioxide contribute to decrease the global warming. To reduce the warming heat and the air pollutants emissions we need to contribute in a personal way. The advice is driving and flying less, recycling and avoiding the use of aerosols.

Opinion

Maybe we don’t know that every gas emitted by human activities contribute to air pollution increase and high global warming levels. The sulfur dioxide is the only pollutant that can contribute to reduce the global warming, avoiding sunlight remains in atmosphere but this pollutant is too dangerous for human health.


Therefore, the human health is always under hazard because every action in world is producing pollutants on the air. We can contribute following the advices but the industrial process may reduce their emissions if we want to improve our health in future.
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Air Pollution: Comes from many sources. NatGeo News. Taken from http://environment.nationalgeographic.com/environment/global-warming/pollution-overview/



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