China News Agency, Shanghai, March 30 (Reporter Li Shuzheng) The sand and dust weather that has moved eastward into the sea with the cold air, another carbine was killed on the 30th, and Shanghai's Air Quality Index (AQI) once "exploded" that day.
The Shanghai Meteorological Department stated that due to the return of northeast wind near the ground and the sea, the concentration of particulate matter in the air in Shanghai increased rapidly from 9 o'clock that day.
The data showed that the level of pollution reached a moderate level at 10 o'clock; from 11 o'clock to 12 o'clock, in just a short period of time, the AQI soared to its peak, reaching 500 at one time, which was a serious pollution.
The blue sky and white clouds that showed up briefly in the morning caused many Shanghainese to call "caught."
"It's good to see the weather before going out in the morning. I deliberately aired my clothes." Shanghai's spring is already wet and rainy, and the Shanghainese will not "let go" washing clothes on any sunny day.
"At noon, I was dumbfounded. Why is the sky'yellow'?" Wu Hao, who lives in Changning, Shanghai, complained: "The clothes that have been dried will have to be'returned to the oven' to be washed again tonight."
At 13:00 that day, when the pollution "exploded", a reporter from China News Agency saw in the People's Square that the sky was a mixture of yellow and gray, and visibility was poor.
Passers-by wear strict masks, and some people also wear goggles.
Why didn't Shanghai, which is rarely affected by sandstorms, escaped this time?
The Shanghai Meteorological Department said that this has a lot to do with the weather conditions in Shanghai recently.
On the one hand, the night precipitation on the 29th was significantly weaker than the forecast intensity, which reduced the “washing” function of rainwater on the atmosphere.
On the other hand, the sand and dust produced in Mongolia, after being mixed with "domestic" sand and dust in Inner Mongolia, China, was transported to the Yellow Sea to the southeast, but then returned to the Yangtze River estuary with the northeast wind on the surface of the sea.
Therefore, including Shanghai, Jiangsu, Zhejiang and other places also experienced sand and dust weather.
The rain that is just waiting for "delivery" is expected to solve the "soil-eating" Shanghai people.
According to the Shanghai Meteorological Bureau, starting from the second half of the night on the 30th, Shanghai gradually turned cloudy and sometimes rainy, and the wind direction turned easterly.
The erosion of rainwater will help the sedimentation of particulate matter. It is expected that the floating dust process will be alleviated from the morning to the morning of the 31st.
(Finish)