On Tuesday (March 21) in northern China (March 21), it suffered a large -scale dust pollution. Yinchuan, Baotou and other ground were seriously polluted. Among them, the air quality index of air quality indexes in many cities such as Lanzhou and Xining.

According to the China News Agency, the monitoring of China Environmental Monitoring Station shows that at 9 am on Tuesday, Hetian, Baotou, Ordos, Lanzhou, Jinchang, Baiyin City, Zhangye City, Dingxi City, LinxiaState, Xining City, Wuzhong City, Guyuan City and other places have severely polluted air quality, and the main pollutants are inhaled particulate matter (PM10).Among them, the air quality index of many cities such as Lanzhou and Xining reached or exceeded 500, and the explosive table occurred.

According to the forecast of the China Environmental Monitoring Station, it is expectedThe northern part of North China is dominated by light to mild pollution, of which the central and southern North China has gradually shifted from mild to moderate pollution to good pollution.

In addition, it is expected that from Tuesday to Wednesday, the west of Gansu, western Inner Mongolia, eastern Qinghai, most of Ningxia and central and northern Shaanxi are affected by sand and dust weather. The air quality is mainly light to moderate pollution.Severe or above pollution; during the northeast and North China region, it may be affected by sand or dusty weather, and there is a risk of short -term severe pollution.