Maoming in South China's Guangdong province had a 99.5 percent rate of days with excellent or good air quality in the first six months of 2020, ranking first in the province, according to the city's bureau of ecology and environment.

The composite index of ambient air quality of Maoming in the first six months of this year was 2.38, ranking third in the province.

Maoming in South China's Guangdong province has a 99.5 percent rate of days with excellent or good air quality in the first six months of 2020. [Photo/WeChat account: maofabu]