Compared with the common air pollutant including the suspended particulate matter, the carbon monoxide, the sulfur oxide compound, the nitrogen oxide compound and the hydrocarbon and so on, mostly is produces by the human factor. (For example chimney discharges, transportation vehicle in our country law regarding the human factor discharges and so on) to produce the air pollutant, mostly subscribes has "discharges the standard" to come the standard they discharging.

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