China News Agency, Beijing, May 6 (Reporter Ruan Yulin) Affected by the sand and dust process, there will be severe and above regional inhalable particulate matter (PM10) pollution in Northwest China and North China. On the 6th, there will be multiple places in Inner Mongolia, Xinjiang, Ningxia, etc. The air quality in cities is seriously polluted.
The China Environmental Monitoring Station showed that at 6 o'clock on the 6th, the air quality in Hohhot, Baotou, Ordos, Shizuishan City, Hotan area and other places were seriously polluted, and the air quality index reached 500.
In the air test, the highest value of the air quality index is set to 500, and if it exceeds 500, it is an explosion meter.
According to expert analysis, the dust originated from two regions: one is the western part of Inner Mongolia and western Gansu in China. The time of the sand rise is daytime on the 5th, and it will affect northwestern China from west to east, from night on the 5th to daytime on the 6th. It will further affect China's Gansu, Ningxia, and Shaanxi regions; the second is the vast area connecting southern Mongolia and China's Inner Mongolia. The sand emission time is from the evening of the 5th to the daytime on the 6th. Due to the strong gust wind speed, the amount of sand is expected to be large. It is expected to affect China's central Inner Mongolia, Shanxi, Beijing-Tianjin-Hebei, Henan, Shandong and other regions on the 6th, and start to affect the Jiangsu, Anhui, Shandong, Henan and northern Yangtze River Delta on the 7th.
The forecast believes that there is a regional precipitation process in the front of the sand and dust transport path from Mongolia. Therefore, the northern part of North China is less affected by the sand and dust process than the central and southern parts. It is expected that the region will continue to appear severe and severe for a short time from west to east. Above pollution.
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