China News Service, March 28th. According to the official Weibo message from Beijing Environmental Protection Monitoring Center, 29-30 days, due to adverse weather conditions, there is a risk of a mild to moderate pollution process in Beijing.
Image source: Official Weibo of Beijing Environmental Protection Monitoring Center
This process is similar to the mild to moderate pollution process on the 24th to 25th, but the meteorological elements are slightly better than the previous process. The ground is dominated by southerly winds, the wind speed is higher, the humidity is lower, there is no significant temperature inversion in the middle layer, and vertical diffusion Conditions are acceptable.
It is expected that from tomorrow night (29th) night, the air quality in Beijing will gradually reach level 3 mild pollution, and pollution will continue to accumulate throughout the 30th day. The peak concentration of the process will occur during the night of the 30th to the early morning of the 31st, and the short-term peak concentration can reach Moderate pollution levels. The cold and high pressure affected the city around noon on the 31st, and the pollution process ended. During this pollution process, the city is still expected to be affected by the more obvious regional pollution transmission, mainly the southwestern route.