Home exploration: 2065438+2003129 October, severe haze weather occurred in central and eastern China. The air quality in Beijing, Shijiazhuang, Jinan, Tianjin and other cities is as follows.

There is little vegetation in the north, and the main influence is actually the lack of fixation on the soil surface, which is easy to form sandstorms and serious floating dust on the surface, all of which contribute greatly to PM2.5; In addition, dry and little rain is not conducive to pollutant deposition. The gap between north and south cities is mainly concentrated in coal and dust. Coal sources include coal-fired heating and thermal power generation. The former is in the north but not in the south, while the latter is more in the north and less in the south.

Therefore, choose: B.