PPE

heavy air pollution in Beijing

At 12:00 on April 1, the office of Beijing emergency headquarters of heavy air pollution started the blue warning of heavy air pollution. Since the night of March 31, affected by the convergence meteorological conditions in the east of Taihang Mountain and the south of Yanshan mountain, the air pollution diffusion conditions in Beijing Tianjin Hebei region are generally unfavorable. The air quality in the central and southern regions of the region has reached the level of “grade 5 severe pollution”. Please do a good job in health protection

according to the Beijing Environmental Protection Bureau, due to the combined effect of regional transmission and pollution emissions in Beijing, the concentration of pollutants in Beijing gradually accumulated and the air quality gradually deteriorated. Especially in the morning of April 1, under the action of easterly wind, the concentration of pollutants in Beijing increased rapidly, and the air quality had reached the level of “grade 5 heavy pollution” by 12:00

it is predicted that the heavy air pollution process will continue in the future due to the adverse meteorological conditions such as low pressure and static stability, and the air quality will start to improve due to the cold air

according to the emergency plan for heavy air pollution in Beijing (revised in 2017), during the blue warning period, relevant units are required to strengthen dust control at construction sites, stop outdoor painting and shotcreting for slope protection, increase the cleaning intensity of key roads, and strengthen law enforcement and inspection

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