According to air quality test results released by the Guizhou provincial department of environmental protection, the air quality of Guiyang, capital city of Guizhou province, remains good in September.

Huaxi Wetland Park of Guiyang, Guizhou province.[Photo/chinadaily.com.cn]

The air quality test examined the index of SO2, NO2, CO, O3, PM10 and PM2.5 to come up with test results.

Shuhai Forestry in Guiyang, Guizhou province.[Photo/chinadaily.com.cn]

According to statistics, the AQI of Guiyang city is 100 percent, while the AQI of Zunyi city is 93.3 percent.

Based on the statistics, except Guiyang city and Zunyi city, the other 10 cities in Guizhou with good air quality are: Chishui, Kaili, Duyun, Xingyi, Fuquan, Anshun, Tongren, Liupanshui, Qingzhen, Bijie and Huairen city.