Yesterday pm2.5

Jinghua Times News (Reporter Shark Wang) Due to fog and haze, Beijing began to suffer from heavy pollution on the evening of 4th. Yesterday, the concentration of PM2.5 in Beijing continued to rise, and the concentration of PM2.5 in some stations exceeded 300 μ g/m3, which was a serious pollution of Grade 6. Last night and yesterday morning, the Beijing Meteorological Observatory issued the first double warning of fog and haze in the second half of this year. The meteorological department predicts that from tonight, with the cold air coming to "save the scene", the fog and haze will weaken and dissipate, and it is expected to see the blue sky again tomorrow.

Yesterday morning, due to the heavy fog, the visibility in Beijing obviously deteriorated. At 5 am, the visibility of the observatory in the southern suburbs is only 400 meters, and the visibility in most urban areas is less than 1 km. Monitoring from the Municipal Environmental Monitoring Center showed that yesterday 10, the concentration of PM2.5 in the sixth district of the city was 247 μ g/m3, and it reached 3 14 μ g/m3 in the southeast. According to the introduction of the Municipal Environmental Monitoring Center, at this time, the southeastern part of our city and Langfang are small pollution gathering areas in North China, with the highest pollution level and serious pollution level. Yesterday 18, the Central Meteorological Observatory continued to issue a yellow warning of haze: from 20: 00 on the 6th to 20: 00 on the 7th, there were moderate haze in Beijing, Tianjin, central Hebei, western Liaoning and northern Shandong, among which, some areas in central and southern Beijing and northern Tianjin had severe haze. The meteorological department predicts that Beijing will be controlled by cold high pressure and northerly winds tonight, and the pollution diffusion conditions will improve, and the visibility and air quality will be significantly improved. It is expected to see the blue sky again on the 8 th. 8- 10, favorable pollution diffusion conditions will continue and Beijing's air quality will maintain an excellent level.