Chemical constituents, driving factors, and source apportionment of oxidative potential of ambient fine particulate matter in a Port City in East China
文献类型：期刊论文
| 作者 | Chen, Ke2; Xu, Jingsha3; Famiyeh, Lord2,4; Sun, Yong2; Ji, Dongsheng5; Xu, Honghui6; Wang, Chengjun7; Metcalfe, Sarah E.8; Betha, Raghu9; Behera, Sailesh N.10 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-10-15 |
| 卷号 | 440页码:10 |
| 关键词 | Oxidative potential PM2.5 PMF model PCA Dithiothreitol assay |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2022.129864 |
| 通讯作者 | Jia, Chunrong(cjia@memphis.edu) ; He, Jun(jun.he@nottingham.edu.cn) |
| 英文摘要 | A comprehensive year-round field campaign was conducted in the coastal city of Ningbo, China to examine the driving factors of oxidative potential (OP) of PM2.5 and hence its potential health impacts. Using dithiothreitol (DTT) cell-free assay, OP of water-soluble (OPws) and methanol-soluble components (OPmeth) of PM2.5-based samples were measured. Volume-normalised OP (OPvws and OPvmeth) were higher in heating seasons, and mass -normalised OP (OPmws and OPmmeth) peaked in summer. Five sources were identified to be DTT active in OPvws, with road dust (RD) being dominant, while four sources contributed to OPvmeth, with industrial emission (IE) as the largest contributor. Water extracted more toxic components from RD while toxic components in IE and vehicle emission (VE) were more soluble in methanol. We further compared OP values between PM2.5 of similar concentrations and observed that OPvws prevailed in PM2.5 toxicity during clean days (PM2.5 concentration < 38.5 mu g m? 3), while OPvmeth became dominant when PM2.5 concentration was larger than 69.1 mu gm(-3), implying the need to extract whole PM2.5 using both solvents to develop the mitigation strategy for reducing the overall PM2.5 toxicity. Efforts should be devoted to controlling the emissions from dominant sources of both OP in-dicators in specific episode. |
| WOS关键词 | WATER-SOLUBLE PM2.5 ; AIR-POLLUTION ; DITHIOTHREITOL DTT ; SEASONAL-VARIATION ; TRANSITION-METALS ; AEROSOLS ; COASTAL ; ACID ; MASS ; ASSOCIATIONS |
| 资助项目 | Ningbo Science and Tech-nology Innovation Key Projects[2020Z099] ; Ningbo Science and Tech-nology Innovation Key Projects[2022Z028] ; Ningbo Municipal Commonweal Key Programme[2019C10033] ; Li Dak Sun Fellowship from University of Nottingham Ningbo China[E06211200005] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000863312900004 |
| 出版者 | ELSEVIER |
| 资助机构 | Ningbo Science and Tech-nology Innovation Key Projects ; Ningbo Municipal Commonweal Key Programme ; Li Dak Sun Fellowship from University of Nottingham Ningbo China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185024]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Jia, Chunrong; He, Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 2.Univ Nottingham Ningbo China, Dept Chem & Environm Engn, 199 Taikang East Rd, Ningbo 315100, Peoples R China 3.Beihang Hangzhou Innovat Inst Yuhang, Yuhang Dist, Hangzhou 310023, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atmo, Beijing 100029, Peoples R China 6.Zhejiang Inst Meteor Sci, Hangzhou 310008, Peoples R China 7.South Cent Minzu Univ, Coll Resources & Environm Sci, Wuhan 430074, Peoples R China 8.Univ Nottingham, Sch Geog, Nottingham NG7 2RD, England 9.Texas Tech Univ, Dept Civil Environm & Construction Engn, Lubbock, TX 79430 USA 10.Shiv Nadar Univ, Dept Civil Engn, D036C, Noida, India |
| 推荐引用方式 GB/T 7714 | Chen, Ke,Xu, Jingsha,Famiyeh, Lord,et al. Chemical constituents, driving factors, and source apportionment of oxidative potential of ambient fine particulate matter in a Port City in East China[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,440:10. |
| APA | Chen, Ke.,Xu, Jingsha.,Famiyeh, Lord.,Sun, Yong.,Ji, Dongsheng.,...&He, Jun.(2022).Chemical constituents, driving factors, and source apportionment of oxidative potential of ambient fine particulate matter in a Port City in East China.JOURNAL OF HAZARDOUS MATERIALS,440,10. |
| MLA | Chen, Ke,et al."Chemical constituents, driving factors, and source apportionment of oxidative potential of ambient fine particulate matter in a Port City in East China".JOURNAL OF HAZARDOUS MATERIALS 440(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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