The Guiyang Atmosphere Office recently completed its assessment of the air quality assurance work of various districts, cities, counties and development zones in Guiyang in October, and announced the rankings on Nov 10.

The rankings of districts, zones and counties in Guiyang were as follows, from best to worst: Guanshanhu district, Wudang district, Huaxi district, the Guiyang Free Trade Zone, Yunyan district, the Guiyang National High-tech Industrial Development Zone, Baiyun district, the Guizhou Shuanglong Airport Economic Zone, Qingzhen city, Nanming district, Kaiyang county, the Guiyang Economic and Technological Development Zone, Xiuwen county, and Xifeng county.

In October, all districts, zones and counties in Guiyang enjoyed good air quality every day, and the city's primary pollutant was ozone.