Reporters learned from the Municipal Environmental Protection Bureau, last month, the Xining air quality index for the good number of days is 5 days, excellent rate of 17.9%. Among them, 15 days of mild pollution, accounting for the total number of days of the month of 54%; moderate pollution for 5 days; severe pollution for 2 days; serious pollution for 1 days.According to

, February 9th to 15, during the Spring Festival holiday, February 11th to 18, 8 consecutive days, the primary pollutant is particulate matter (PM10), and this reduces the travel of the vehicle, there is a certain relationship with the smooth road. During this period, the main pollutants from fine particulate matter (PM2.5) into respirable particulate matter (PM10), indicating that automobile exhaust has become one of the main sources of fine particulate matter (PM2.5) emissions. February 24th (day fifteen) eight pm to half past nine, PM10 has reached the highest value of the measured three urban environmental air automatic station, an average of 354 micrograms / cubic meter, was heavily polluted and that the fireworks have great influence on the regional environmental quality, but when I was in grade three or four late blowing wind. The spread of pollution degree on New Year’s eve. (author: Rong Lijun)

 

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