摘要
The prevention and control of air pollution need to be targeted at different pollution sources. One of the main sources of air pollution is industrial pollution, such as chemical enterprises, thermal power generation and other industries, which will not only produce a large amount of waste gas and dust, but also produce a large amount of toxic gases. The second is automobile exhaust emissions. With the rapid social and economic development, the per capita share of automobiles is getting higher and higher. The exhaust emissions contain nitrogen oxides, causing exhaust pollution. The third is soot pollution. In addition to coal-fired power generation, heating in winter in the north will also produce more soot pollution. According to different pollution sources, different prevention and control measures should be formulated to achieve better prevention and control effect.