四川环境2025，Vol.44Issue(2)：9-18,10.DOI:10.14034/j.cnki.schj.2025.02.002
四川省PM2.5污染及人口暴露风险研究
Study on PM2.5 Pollution and Population Exposure Risk in Sichuan Province
摘要
Abstract
In order to explore the PM2.5 pollution status and population exposure risk pattern in Sichuan Province,the Gini coefficient and population exposure risk model were used to analyze the temporal and spatial evolution characteristics of PM2.5 pollution and population exposure risk in Sichuan Province based on the PM2.5 and population data of Sichuan Province from 2000 to 2020,and the influencing factors of PM2.5 population exposure risk were revealed by using geographical detectors.The results showed that:from 2000 to 2020,the concentration of PM2.5 in Sichuan Province is high in the East and low in the west,and the change of PM2.5 concentration significantly reduced.By 2020,96％of the analysis units were less than the secondary concentration limit,and the pollution situation of PM2.5 was significantly improved.The provincial environmental Gini coefficient value remained in the normal range,but the fair level of cities and states affected by PM2.5 pollution decreased.During the study period,the exposure risk of PM2.5 population in Sichuan Province showed a trend of high in the East and low in the west,and the area of high-risk regions decreased by 42.5％.The impact of PM2.5 on the elderly over 65 years expanded in the geographical scope.The average q value of socio-economic factors was greater than that of natural environmental factors,and the impact of any two factor interaction on PM2.5 population exposure risk was enhanced.The air pollution prevention and control policy of Sichuan Province should be favorable to sensitive people,and stress on the balance of air pollution control in various cities and prefectures.It is necessary to take into account green space protection,meteorological activity monitoring,industrial structure optimization and other work,so as to promote the sustainable development of regional atmospheric environment.关键词
PM2.5污染/人口暴露风险/时空演变/地理探测器/影响Key words
PM2.5 pollution/population exposure risk/spatial-temporal evolution/geo-detector/effect分类
资源环境引用本文复制引用
杨吉,王钺,盛杰,杨凯瑞..四川省PM2.5污染及人口暴露风险研究[J].四川环境,2025,44(2):9-18,10.基金项目
国家社会科学基金西部项目(23XGL031). （23XGL031）
