Tower observed vertical distribution of PM2.5, O3 and NOx in the Pearl River Delta

The vertical structure characteristics of the concentrations of PM2.5, O3 and NOx are analyzed in conjunction with the meteorological data collected in December 2017 from a new meteorology tower in the Pearl River Delta region. The results show that: (1) The concentration of PM2.5 generally decreased with height, while the magnitude of the decrease differed between the polluted and the clean situations. The concentration of O3 increased with...