November, the city’s air quality excellent rate of 86.67%, the number of days to reach the standard of 26 days. Four district three county air quality and how? It is understood that in November, the total number of days of effective monitoring of air quality in the city for 30 days, of which the number of days to reach the standard for 26 days, mild pollution for the first 3 days, moderate pollution for the first 1 days, air quality excellent rate of 86.67%. Through the city’s efforts to control pollution, compared with the same period last year, the city’s air quality exceeded the number of days in November last year to reduce 5 days. In order to allow the public to understand the overall situation of the air quality in Xining, the city from this month, to the public last month, four districts of the air quality of the three counties. The reporter learned that, last month four district ranked as follows: North area, air quality index (AQI) was 97; the west area, the air quality index (AQI) was 100; the East Zone, air quality index (AQI) was 106; the city area, the air quality index (AQI) was 107. Three counties in the air quality rankings last month, Huangyuan County Air Quality Index (AQI) was 82; Datong County Air Quality Index (AQI) was 89; Huangzhong County Air Quality Index (AQI) was. Three counties are the main pollutants PM10. The Municipal Environmental Protection Bureau relevant responsible person said, in order to enable the public to understand the status of air quality, City Environmental Protection Bureau in cooperation with the Xining evening news, on November, every Monday to Friday at the hotline column version of weather, air quality published the day before the four zone. At the same time, the City Environmental Protection Bureau will also be released through the media monthly four districts of the county air quality rankings, so that the public to monitor the progress of the city’s pollution control in various regions of the city three.