山东科学2026，Vol.39Issue(1)：133-143,11.DOI:10.3976/j.issn.1002-4026.2025022
2019-2023年聊城市PM2.5和O3质量浓度变化特征的相关性分析及气象因素影响研究
Research oncorrelations between variations in PM2.5 and O3 concentrations and impacts of meteorological factors in Liaocheng from 2019 to 2023
摘要
Abstract
To investigate the characteristics of atmospheric composite pollution and meteorological driving mechanisms in medium-sized industrial cities,this study systematically analyzed the spatiotemporal variations and synergistic effects of PM2.5 and ozone(O3)based on air quality data from five national stations and eight county-level monitoring stations in Liaocheng City from 2019 to 2023.The results showed that the annual average PM2.5 concentration exhibited a fluctuating downward trend but rebounded in 2023 with increased extreme values.O3 concentrations displayed a"decline followed by rise"pattern,peaking at 230.0 μg/m3 in June during the summer pollution season.Correlation analysis revealed that PM2.5 and O3 pollution showed a positive correlation in summer and a negative correlation in winter,Among various meteorological factors,temperature exhibited a significant positive effect on O3 formation.When humidity was in the 60％-70％range,the risk of simultaneous PM2.5 and O3 exceedance increased.Wind analysis further showed that O3 exceedances predominantly occurred under the presence of southerly winds(0 to 7.5 m/s),displaying a distinct"red tongue"extension pattern,while calm and westerly winds exacerbated PM2.5 concentration.关键词
聊城市/PM2.5/O3/时空分布特征/相关性分析/气象因子Key words
Liaocheng/PM2.5/O3/spatiotemporal distribution/correlation analysis/meteorological factors分类
资源环境引用本文复制引用
李静,姜娜,董原,王金业,孟静静..2019-2023年聊城市PM2.5和O3质量浓度变化特征的相关性分析及气象因素影响研究[J].山东科学,2026,39(1):133-143,11.基金项目
山东省自然科学基金(ZR2020MD113) （ZR2020MD113）
国家自然科学基金(42177083) （42177083）
