Is there a relationship between hot weather and smog in winter?

Mainly in winter, compared with other solar terms, the temperature is low, and water vapor is easy to condense and form fog. Coupled with the low temperature, weak air convection, dust is not easy to spread, forming haze weather.

The smog in winter is more serious because the vegetation withers in winter, which can't effectively control the smog, while the lush foliage in summer can absorb the smog. Therefore, understanding the root causes of smog can solve air pollution. The main causes of smog are high-energy pollutants and automobile exhaust emissions.