生态环境学报2025，Vol.34Issue(2)：268-278,11.DOI:10.16258/j.cnki.1674-5906.2025.02.009
2000-2022年珠三角城市群PM2.5与O3时空分布特征及其影响因素
Spatial-Temporal Distribution Characteristics of PM2.5 and O3 in the Pearl River Delta Urban Agglomeration and Corresponding Influence Factors
摘要
Abstract
This study analyzes the distribution characteristics of PM2.5 and O3 pollution in the Pearl River Delta from 2000 to 2022,focusing on their temporal and spatial variations and the impacts of human and meteorological factors.It was found that PM2.5 pollution has generally improved over time,with annual concentrations decreasing,while O3 pollution has worsened,with annual concentrations rising.The seasonal variations showed PM2.5,with peaks in winter and troughs in summer,whereas O3 was more severe in autumn and lowest in winter.Both pollutants followed a primary 20-month cycle,with a longer 50-month periodic variation,and there was a notable shift in their concentrations in January 2020.On a broad time scale,PM2.5 and O3 are negatively correlated,but positively correlated on shorter scales.Additionally,population and GDP are strongly negatively correlated with PM2.5 and O3 levels,reflecting the impact of energy-saving and emission-reduction policies.Meteorological factors play a crucial role:lower temperatures promote PM2.5,higher temperatures favor O3 production,high humidity decreases PM2.5,and lower wind speeds hinder the dispersion of both pollutants,leading to higher concentrations.These findings provide valuable insights into the development of air pollution control strategies and environmental policies in economically advanced regions.关键词
大气污染/PM2.5/O3/时空分布特征/影响因素/治理Key words
air pollution/PM2.5/O3/spatial&temporal distribution/influence factors/govern分类
资源环境引用本文复制引用
翁雷霆,王鹏,肖荣波,白晋晶,钟俊宏..2000-2022年珠三角城市群PM2.5与O3时空分布特征及其影响因素[J].生态环境学报,2025,34(2):268-278,11.基金项目
广东省自然科学基金项目(2414050001597) （2414050001597）
国家重点研发技术项目(2022YFF1303104) （2022YFF1303104）
