The complexation of atmospheric Brown carbon surrogates on the generation of hydroxyl radical from transition metals in simulated lung fluid

Co‐Occurring Extremes of Fine Particulate Matter (PM2.5) and Ground‐Level Ozone in the Summer of Southern China

“…Consequently, the corresponding co‐occurrence days for these cities with high frequency (>50%) also increased at a rate of 14 days/yr. In spite of a lower increasing rate of 10 days/yr for all cities in south China (Figure 1c), possible increasing health risks may be posed by ozone and PM 2.5 during co‐occurrence (Lyu, Wu, Pang, et al., 2023). Low co‐occurrence days and number of cities in 2018 and 2019 may be partly due to less impacts from typhoon periphery circulations.…”