During the epidemic, all parts of the country stopped working. Why does smog still appear?

Affected by the epidemic, most enterprises in China have stopped working, especially some industrial enterprises. Because of the large-scale population gathering, it is easy to spread the epidemic. Now even if they stop working, there is still smoke. But it seems much better than before, because it used to be smog for about half a month, and now it may be only a few days.

There are many factors that cause smog. A large amount of exhaust gas emitted by industrial enterprises is really easy to cause smog, but there is another factor, such as residential central heating and automobile exhaust emissions, which are all easy to cause smog. Although there are not many cars on the road now and industrial enterprises have basically stopped working, there are still a lot of particulate matter discharged into the air in normal winter, which is easy to cause smog under special climatic conditions.

Although there are fewer cars on the road now and industrial enterprises have basically stopped working, it still has the influence of smog in the past. Haze is a climate phenomenon. It doesn't mean that cars don't run, industrial enterprises don't run, they don't keep warm, and then they will be gone soon. Just like a sick person, the sick person gives him infusion and injection, and his body still recovers bit by bit. The earth is like a patient now.

If the smog really wants to disappear in our life, we still need to make a lot of efforts, such as central heating in heating, more clean research in using clean fuel vehicles, the introduction of technologies to reduce automobile exhaust emissions, and the upgrading of related equipment in industrial enterprises to make the industry run more cleanly and effectively. All these will take a long time to implement relevant policies.