1.The vehicle used engine. 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%.25% out of the room, shaft, crank, and the other 20% evaporation in the carburetor and fuel tank. The oxides of nitrogen is nitric oxide. (NO), nitrogen dioxide (NO2) and Nai, said oxide (N2O) almost entirely out of the exhaust pipe.The lead in gasoline type super also increase lead in air with
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