About 60% of the air PM2.5  is caused by coal

Beijing 60% air is contain PM2.5, mainly coal and oil fired Tim Chen, the Beijing Environmental Protection Bureau said that.

For example, he said, the heating of the house on a 100 square meters, each heating season approximately 15 kg of sulfur dioxide emissions, 7 kg of nitrogen oxides, soot four kilograms. Sulfur dioxide into sulfates, nitrogen oxides into nitrates, the formation of PM2.5 both soot emissions, including the secondary conversion ...
Continue reading ...