Characterization of PM2.5 and its oxidative potential in three areas of Southern Italy

IF 4.2 2区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Atmospheric Environment Pub Date : 2025-03-03 DOI:10.1016/j.atmosenv.2025.121146

Daniela Cesari , Caterina Mapelli , Adelaide Dinoi , Daniela Chirizzi , Antonio Pennetta , Giuseppe Deluca , Giuseppe Egidio De Benedetto , Daniele Contini

{"title":"Characterization of PM2.5 and its oxidative potential in three areas of Southern Italy","authors":"Daniela Cesari , Caterina Mapelli , Adelaide Dinoi , Daniela Chirizzi , Antonio Pennetta , Giuseppe Deluca , Giuseppe Egidio De Benedetto , Daniele Contini","doi":"10.1016/j.atmosenv.2025.121146","DOIUrl":null,"url":null,"abstract":"<div><div>The study of the atmospheric particulate matter (PM) oxidative potential (OP), a general indicator of human health risks associated with PM exposure, has become a focal point in research. In Italy, the number of studies concerning OP is limited, especially for the fine fraction of PM. This study aims to compare the impact of different natural and anthropogenic sources on fine PM (PM<sub>2.5</sub>) and its OP on three areas of Southern Italy. A study of PM<sub>2.5</sub> sources sampled at a rural site was carried out. The PM<sub>2.5</sub> sources were identified and characterized with the Positive Matrix Factorization (PMF5.0) model, while the contribution of each source to the OP estimated with the multi-linear regression (MLR) analysis. Results were compared with those obtained from two similar studies, related to different typology sites in south Italy. The PMF5.0 identified similar sources for the three sites, with different contributions to PM<sub>2.5</sub> and OP. The MLR analysis highlights that combustion sources are the main contributors to the OP activity of PM<sub>2.5</sub>. The relative contributions to OP and PM<sub>2.5</sub> are not comparable for all sources. Results of this study represent a contribution to a better understanding of the potential health impact caused by PM<sub>2.5</sub>; of its spatial variability; and role of different sources.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"350 ","pages":"Article 121146"},"PeriodicalIF":4.2000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric Environment","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1352231025001219","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

The study of the atmospheric particulate matter (PM) oxidative potential (OP), a general indicator of human health risks associated with PM exposure, has become a focal point in research. In Italy, the number of studies concerning OP is limited, especially for the fine fraction of PM. This study aims to compare the impact of different natural and anthropogenic sources on fine PM (PM_2.5) and its OP on three areas of Southern Italy. A study of PM_2.5 sources sampled at a rural site was carried out. The PM_2.5 sources were identified and characterized with the Positive Matrix Factorization (PMF5.0) model, while the contribution of each source to the OP estimated with the multi-linear regression (MLR) analysis. Results were compared with those obtained from two similar studies, related to different typology sites in south Italy. The PMF5.0 identified similar sources for the three sites, with different contributions to PM_2.5 and OP. The MLR analysis highlights that combustion sources are the main contributors to the OP activity of PM_2.5. The relative contributions to OP and PM_2.5 are not comparable for all sources. Results of this study represent a contribution to a better understanding of the potential health impact caused by PM_2.5; of its spatial variability; and role of different sources.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Atmospheric Environment 环境科学-环境科学

CiteScore

9.40

自引率

8.00%

发文量

458

审稿时长

53 days

期刊介绍： Atmospheric Environment has an open access mirror journal Atmospheric Environment: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Atmospheric Environment is the international journal for scientists in different disciplines related to atmospheric composition and its impacts. The journal publishes scientific articles with atmospheric relevance of emissions and depositions of gaseous and particulate compounds, chemical processes and physical effects in the atmosphere, as well as impacts of the changing atmospheric composition on human health, air quality, climate change, and ecosystems.