Severe pollution due to dense sand dust in northern China

A resident of Harbin city wears a mask to avoid dust for the pet

At 6 am on March 10, a resident of Harbin City - Mr. Li Wei discovered that the sky was not as clear as it was yesterday.

Surprisingly, standing on the 6th floor looking down, the whole city was hidden in a thick layer of dust.

Information from the Meteorological Station said that, starting March 9, sand dust has appeared in Mongolia, the Inner Mongolia Desert, Gansu Province, Henan and spread east to Liaoning, Sand. Lam on March 10.

This air has also spread to districts and cities in Heilongjiang Province, including Harbin. By the afternoon of 10-3, sand dust has been removed from Heilongjiang but at the same time a heavy snowfall also appears in the southwest of the province.

This 'floating dust' also caused Beijing City within 5 days of secondary pollution to increase to a serious level 5 pollution. People here can smell the 'smell' of spreading sand. air. This is also the largest sand dust so far when the weather is starting to spring in northern China.

Beijing people face "pollution"

According to a survey by the Air Quality Control Station, the concentration of sand particles when inhaled has reached the highest level (2500mg of sand dust / m3 of air) and gradually decreases on the afternoon of March 10 (about 500mg / m3 still). ).

According to the latest data from Meteorological Station on March 11, cold air flowed into Beijing city with the 5th and 6th level north wind. Therefore, the climate here is clear and less cloudy. .

Although sand dust will be exhausted within the next few days, the temperature will decrease (morning 5o C and evening -3o C) and the cold wind will make the city climate dry. Meteorological experts also give recommendations to remind people here to pay attention to drinking plenty of water as well as providing moisture to the skin regularly.

HA