The car is a source of air pollution problems most substances out of the car at the อนม high carbon oxide hydrocarbon oxide of nitrogen. And of the sulfur compounds are hydrocarbons, about 55% out of the exhaust 25 woven%.The crank, and the other 20% evaporation in the carburetor and fuel tanks, oxide of nitrogen is nitric oxide (NO), nitrogen dioxide. (NO2) and nitrogen oxide (N2O); almost all come from the exhaust, toxic to humans directly.
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