A decade of changes in potential sources and chemical composition of PM2.5 from Huangshi in central China

IF 3.9 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Atmospheric Pollution Research Pub Date : 2025-02-14 DOI:10.1016/j.apr.2025.102465

Shan Liu , Changlin Zhan , Ziguo Liu , Jihong Quan , Hongxia Liu , Jingru Zheng , Xuefen Yang , Yanni Li , Zhong Gao , Juan Liu

{"title":"A decade of changes in potential sources and chemical composition of PM2.5 from Huangshi in central China","authors":"Shan Liu , Changlin Zhan , Ziguo Liu , Jihong Quan , Hongxia Liu , Jingru Zheng , Xuefen Yang , Yanni Li , Zhong Gao , Juan Liu","doi":"10.1016/j.apr.2025.102465","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates decadal changes in PM<sub>2.5</sub> sources and chemical composition in Huangshi, a metallurgical and industrial city in Central China. PM<sub>2.5</sub> samples were collected from 2021 to 2023 and analyzed for water-soluble inorganic ions, carbonaceous species, and inorganic elements using ion chromatography, thermal-optical reflectance, and X-ray fluorescence. Positive Matrix Factorization and the HYSPLIT model were applied to determine pollution sources and transport pathways. Compared to 2012–2013, PM<sub>2.5</sub> concentrations declined significantly, primarily due to reduced local emissions. However, secondary aerosols originating from long-range transport, particularly from northern China, Mongolia, and Kazakhstan, now dominate PM<sub>2.5</sub> composition. Contributions from fossil fuel combustion, industrial activities, and vehicular emissions have decreased, while an increased NO<sub>3</sub><sup>−</sup>/SO<sub>4</sub><sup>2−</sup> ratio suggests a shift from stationary to mobile sources. These findings highlight the effectiveness of emission control policies in reducing local anthropogenic pollution, leading to a greater relative contribution from secondary aerosols. This study provides critical insights into the evolving PM<sub>2.5</sub> composition and its sources, supporting the development of more effective air quality management strategies.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 5","pages":"Article 102465"},"PeriodicalIF":3.9000,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric Pollution Research","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1309104225000674","RegionNum":3,"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

This study investigates decadal changes in PM_2.5 sources and chemical composition in Huangshi, a metallurgical and industrial city in Central China. PM_2.5 samples were collected from 2021 to 2023 and analyzed for water-soluble inorganic ions, carbonaceous species, and inorganic elements using ion chromatography, thermal-optical reflectance, and X-ray fluorescence. Positive Matrix Factorization and the HYSPLIT model were applied to determine pollution sources and transport pathways. Compared to 2012–2013, PM_2.5 concentrations declined significantly, primarily due to reduced local emissions. However, secondary aerosols originating from long-range transport, particularly from northern China, Mongolia, and Kazakhstan, now dominate PM_2.5 composition. Contributions from fossil fuel combustion, industrial activities, and vehicular emissions have decreased, while an increased NO₃⁻/SO₄²⁻ ratio suggests a shift from stationary to mobile sources. These findings highlight the effectiveness of emission control policies in reducing local anthropogenic pollution, leading to a greater relative contribution from secondary aerosols. This study provides critical insights into the evolving PM_2.5 composition and its sources, supporting the development of more effective air quality management strategies.

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 Pollution Research ENVIRONMENTAL SCIENCES-

CiteScore

8.30

自引率

6.70%

发文量

256

审稿时长

36 days

期刊介绍： Atmospheric Pollution Research (APR) is an international journal designed for the publication of articles on air pollution. Papers should present novel experimental results, theory and modeling of air pollution on local, regional, or global scales. Areas covered are research on inorganic, organic, and persistent organic air pollutants, air quality monitoring, air quality management, atmospheric dispersion and transport, air-surface (soil, water, and vegetation) exchange of pollutants, dry and wet deposition, indoor air quality, exposure assessment, health effects, satellite measurements, natural emissions, atmospheric chemistry, greenhouse gases, and effects on climate change.