集美大学学报（自然科学版）2023，Vol.28Issue(5)：473-480,8.DOI:10.19715/j.jmuzr.2023.05.12
2015-2019年厦门岛PM2.5污染特征及后向轨迹分析
Pollution Characteristics and Transport Trajectories of PM2.5 in Xiamen Island from 2015 to 2019
摘要
Abstract
With objective of achieving Xiamen's"Clean Air"goal,the analysis of pollution characteristics,transportation pathways and potential sources of PM2.5 in Xiamen Island were carried out from 2015 to 2019.The results show as following:the annual average PM2.5 concentration decreased from(29.59±13.22)μg/m3 to(24.08±11.58)μg/m3 during the study period.The monthly average concentration of PM2.5 is relatively high from January to March and December,between 31.68 μg/m3 and 35.86 μg/m3.The monthly average concentrtion of PM2.5 from June to August is relatively low,all below 20 μg/m3.Seasonal variation characteris-tics show"high in winter and low in summer,falling in spring and rising in autumn",and the pollution months were mainly concentrated in January,February,March and November.By ignoring the seasonal effect,wind speed was the significant factor affecting PM2.5,compared with temperature and moist in these pollution months.Backward trajectory analysis indicated that the regional and short-distance sources from the northeast in Fujian were identified as the major contributors of PM2.5,and long-distance transport from the northwest and north also contributes to PM2.5 pollution in Xiamen Island.In winter,the major source regions of PM2.5 were mainly in the coastal area of Eastern Fujian and the border area between Zhejiang,Anhui,Jiangxi,Guangdong and Fujian,with the characteristics of high pollution tracks,and short distance transportation.The potential source areas of PM2.5 were mainly distributed from Sichuan,Jiangxi,Hunan,Guangdong in Spring,which was characterized by high proportion of pollution tracks and long-distance transport.关键词
大气细颗粒物/后向轨迹聚类分析/轨迹特征/厦门岛Key words
fine particulate matters/backward trajectory cluster analysis/trajectory characteristics/Xia-men Island分类
资源环境引用本文复制引用
巫晶晶,曾舒芬,龙美锟,王颂阳,林锦美,陈锦芳..2015-2019年厦门岛PM2.5污染特征及后向轨迹分析[J].集美大学学报（自然科学版）,2023,28(5):473-480,8.基金项目
国家自然科学基金项目(22178142) （22178142）
福建省自然科学基金项目(2019J01700) （2019J01700）
集美大学国家基金培育计划项目(ZP2020067) （ZP2020067）
福建省食品微生物与酶工程重点实验室开放基金项目(Z822232-2) （Z822232-2）
福建省高等教育学会高等教育科学研究实验室研究专项(22FJSYZD007) （22FJSYZD007）
福建省中青年教师教育科研项目(JAT210217) （JAT210217）
厦门市科技补助项目(2022CXY0308,2023CXY0312) （2022CXY0308,2023CXY0312）
