There will be severe haze in southern Tianjin and southern Hebei. What do you think is the cause of smog?

Severe smog will appear in southern Tianjin and southern Hebei. The formation of smog is related to natural weather phenomena and man-made pollutants, but it can be said that winter is mainly a seasonal change under this climate condition.

Man-made pollutants, such as automobile exhaust and factory exhaust, will have an impact on the atmosphere. Heating may be needed in winter, but now it is basically collective heating. Although this kind of pollution still exists, it is not so terrible. Moreover, major heating companies are now strictly inspecting, and the sewage discharge is not up to standard and is not allowed to operate normally. Car problems also occur every year, because there are traffic jams not only in winter.

The climatic reason should be that the weather was too smooth and there was no wind in the first winter. Coupled with the influence of some topographic factors, it is very likely that there will be more serious smog, because in windy weather, the mobility of the air will increase, and some particles in the smog will be blown away with the flow of the wind, so they will not gather over the city, and the smog will be much lighter. However, there was no strong wind in the first winter, but it was raining in Mao Mao, plus some smog. Naturally, the two complemented each other and helped each other. Many cities are gray all day, and it doesn't rain much, but the roads are wet.

This season was originally a season of frequent smog. We can't change natural factors, but human factors can be controlled, such as even and odd numbers, such as collective heating. Companies check their equipment to ensure that it meets the standards. Encourage people to travel by bus, drive fewer private cars, avoid traffic congestion and reduce pollution emissions. Planting more trees can play a role in vacuuming and reducing the proportion of pollutants in the air, which all play a role.