Intrinsic atmospheric circulation patterns associated with high PM2.5 concentration days in South Korea during the cold season

Peculiar weather patterns effects on air pollution and COVID-19 spread in Tokyo metropolis

“…During stagnant air and atmospheric inversions over several days with weak horizontal and vertical ventilation over large metropolitan areas are recorded high levels of air pollutants ( Chang et al, 2021 ; Cho et al, 2021 ; Garrido-Perez et al, 2018 ; Lu et al, 2021 ). For this study we used composite anomalies geopotential charts at 500 hPa because these capture atmospheric circulation features associated with high PM concentration days better than surface level measurements ( Chang et al, 2021 ; Jeong et al, 2022 ).…”