西安理工大学学报2024，Vol.40Issue(2)：214-225,12.DOI:10.19322/j.cnki.issn.1006-4710.2024.02.007
京津冀地区PM2.5污染区域及人口暴露风险研究
Study on the spatial and temporal distribution patterns and exposure risks of PM2.5 pollution in Beijing-Tianjin-Hebei Region
摘要
Abstract
To mitigate the severe PM2.5 pollution in Beijing,Tianjin and Hebei region,the kilome-ter-level high-resolution PM2.5 dataset is used to analyze the spatial and temporal distribution pat-terns of PM2.5 in the Beijing-Tianjin-Hebei Region,with the frequency of exceedance method and population relative exposure risk model used to assess the regional exposure risk and population exposure risk in Beijing,Tianjin and Hebei region.This study also predicts the future population exposure risk.The results illustrate that the PM2.5 concentration in Beijing-Tianjin-Hebei region showes a fluctuating increasing trend between 2001 and 2013,and a significant decreasing trend between 2014 and 2020,decreasing to 38.43 μg/m3 by 2020.The PM2.5 concentration in the southeastern part of Beijing-Tianjin-Hebei is larger than that in the northwestern part.For re-gional exposure risk,it is lower in Chengde and Zhangjiakou,and higher in Handan,Hengshui,Langfang,Shijiazhuang and Xingtai.For population exposure risk,it is lower in Chengde,Zhangjiakou and Qinhuangdao,and higher in Beijing,Handan,Tianjin,Langfang,Xingtai and Shijiazhuang.Overall,Chengde and Zhangjiakou have the lowest exposure risk,while Handan,Langfang,Xingtai and Shijiazhuang have the highest exposure risk.The population exposure risk in Beijing-Tianjin-Hebei Region will be low(Level 0)in 2030,2035 and 2060.This study com-bines regional exposure risk and population exposure risk to avoid the errors caused by a single e-valuation index and to obtain a more accurate understanding of exposure risk.关键词
京津冀地区/PM2.5/时空分布格局/区域暴露风险/人口暴露风险Key words
Beijing-Tianjin-Hebei Region/PM2.5/spatial and temporal distribution pattern/re-gional exposure risk/population exposure risk分类
资源环境引用本文复制引用
宋俊,李春林,胡远满,刘淼,黄泳波..京津冀地区PM2.5污染区域及人口暴露风险研究[J].西安理工大学学报,2024,40(2):214-225,12.基金项目
国家自然科学基金资助项目(41871192,41730647) （41871192,41730647）
中国科学院青年创新促进会资助项目(2021194) （2021194）
