Lin, Weiran; Xiao, Yuan; Yu, Haijing; Shen, Shaowei - In: Journal of innovation & knowledge : JIK 7 (2022) 2, pp. 1-11
Recent research shows that the annual average concentration and winter average concentration of PM2.5 in Chinese cities have exhibited a convergence trend since 2013. However, the urban air situation in China remains far from ideal. For an authoritative government, vertical environmental...