The strongest dust in transit will start to evacuate tonight?

PM 10 Most parts of Beijing broke 2000.

Since the afternoon before yesterday, there has been a large area of sand blowing in the upper reaches of Beijing. The night before yesterday, the main body of dust moved eastward and the southern edge passed through Beijing. It entered from the northwest of Beijing at 3 am yesterday. At 4 o'clock in the morning, the city's PM 10 has reached a serious pollution level, and most points in the city exceed 1000 μ g/m3. At 8 o'clock yesterday morning, the hourly concentration of PM 10 in the sixth district of the city was 1583 μ g/m3, and that in the northeast was 1755. The rest of the data in the northwest, southeast and southwest all exceeded 2000, and the city was already in the sixth level of serious pollution, which was the most serious level of air quality. When 10, PM 10 decreased slightly, but both were above 1000. In addition, the concentration of PM2.5 remained high yesterday, and the hourly concentration remained at around 400.

Dust affects 6,543,800+0,630 square kilometers nationwide.

Since May 3rd, affected by the drought and windy weather in the north, the strongest sandstorm weather process occurred in the north of China this year. The dusty weather came from northwest areas such as Xinjiang, Qinghai and Gansu, and was also affected by the dust in northern Mongolia and western Inner Mongolia. As of the afternoon of the 4th, floating dust or sand-blowing weather appeared successively in southern Xinjiang Basin, central Gansu, north-central Ningxia, northwestern Shanxi, northern Hebei, Beijing, Inner Mongolia, western Heilongjiang and western Jilin, and sandstorms and local strong sandstorms appeared in some areas of Inner Mongolia and western Heilongjiang. Sandstorm affects Xinjiang, Gansu, Ningxia, Shaanxi, Inner Mongolia, Shanxi, Hebei, Beijing, Tianjin, Liaoning, Jilin, Heilongjiang, Shandong and other provinces (cities, districts). The affected area is about 1.63 million square kilometers.

There are also sandstorms in Inner Mongolia and Northeast China.

The Central Meteorological Observatory issued a blue warning of sandstorms: due to the influence of cold air and cyclones, it is estimated that there will still be floating dust or sand blowing weather in parts of Xinjiang Nanjiang Basin, Inner Mongolia, western Gansu, central and northern Ningxia, northwestern Shaanxi, central and northern North China and western Northeast China from 4 to 6, among which there will be sandstorms in parts of central and western Inner Mongolia and western Northeast China, and there will be strong sandstorms locally. There will be 4 ~ 6 winds in Inner Mongolia, the southeastern part of Northwest China, Northeast China, North China, Huanghuai and other places, with gusts of 7 ~ 9, and the local area in Inner Mongolia can reach about 10; There are 6 ~ 8 winds in the Bohai Sea, the Yellow Sea and the northern part of the East China Sea, and the gust is 9.