Analysis of ozone pollution characteristics and influencing factors in Beijing-Tianjin-Hebei Region from 2019 to 2022
Based on the TROPOMI data from 2019 to 2022 and BRT model,the change characteristics of the ozone column concentration and their influencing factors in the Beijing-Tianjin-Hebei region were analyzed.The results showed that the ozone column concentration had obvious spatial differences,with a trend of high in the north and low in the south.The monthly ozone column concentration in the Beijing-Tianjin-Hebei region showed a trend of first increasing,then decreasing and last increasing again in a year,with the highest ozone column concentration in February to March and the lowest ozone column concentration in August to October,displaying an"N"shape.The ozone column concentration varied significantly with the season,and spring was the highest season for ozone column concentration in the Beijing-Tianjin-Hebei region,followed by winter,summer and autumn in descending order.Temperature and relative humidity contributed the highest to the ozone column concentration among the eight influencing factors,and in general,meteorological factors contributed 77.1％to the ozone column concentration change.
ozone column concentrationtemporal and spatial characteristicsinfluencing factorsBRT
NETL
NSTL
万方数据
