When will the smog be lifted from June 5438 to February 2020?

Taking Jiangdu District as an example, Jiangdu Meteorological Observatory lifted the yellow warning signal of smog on June 5438+February 12, 2020.

Haze is a combination of fog and haze. Smog is very common in cities. In many areas of China, fog and haze are combined as disastrous weather phenomena for early warning and forecasting, which are collectively called "haze weather". Haze is the result of interaction between specific climatic conditions and human activities. The economic and social activities of high-density population will inevitably emit a large number of fine particles (PM2.5). Once the emission exceeds the atmospheric circulation capacity and carrying capacity, the concentration of fine particles will continue to accumulate, and it is prone to a wide range of smog due to the influence of static weather.