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DOI | 10.5194/acp-20-2877-2020 |
Fine particle characterization in a coastal city in China: composition, sources, and impacts of industrial emissions | |
Lei, Lu1,2; Xie, Conghui1,2; Wang, Dawei1; He, Yao1,2; Wang, Qingqing1,2; Zhou, Wei1,2; Hu, Wei3; Fu, Pingqing2,3; Chen, Yong1; Pan, Xiaole1,2; Wang, Zifa1,2; Worsnop, Douglas4; Sun, Yele1,2 | |
2020-03-09 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:5页码:2877-2890 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Aerosol composition and sources have been extensively studied in developed regions in China. However, aerosol chemistry in coastal regions of eastern China with high industrial emissions remains poorly characterized. Here we present a comprehensive characterization of aerosol composition and sources near two large steel plants in a coastal city in Shandong in fall and spring using a PM2.5 time-of-flight aerosol chemical speciation monitor. The average (+/- 1 sigma) mass concentration of PM2.5 in spring 2019 (54 +/- 44 mu g m(-3)) was approximately twice that (26 +/- 23 mu g m(-3)) in fall 2018. Aerosol composition was substantially different between the two seasons. While organics accounted for similar to 30% of the total PM2.5 mass in both seasons, sulfate showed a considerable decrease from 28% in September to 16% in March, which was associated with a large increase in nitrate contribution from 17% to 32 %. Positive matrix factorization analysis showed that secondary organic aerosol (SOA) dominated the total OA in both seasons, accounting on average for 92% and 86 %, respectively, while the contribution of traffic-related hydrocarbon-like OA was comparable (8 %-9 %). During this study, we observed significant impacts of steel plant emissions on aerosol chemistry nearby. The results showed that aerosol particles emitted from the steel plants were overwhelmingly dominated by ammonium sulfate and/or ammonium bisulfate with the peak concentration reaching as high as 224 mu g m(-3). Further analysis showed similar mass ratios for NOx/CO (0.014) and NOx/SO2 (1.24) from the two different steel plants, which were largely different from those during periods in the absence of industrial plumes. Bivariate polar plot analysis also supported the dominant source region of ammonium sulfate, CO, and SO2 from the southwest steel plants. Our results might have significant implications for better quantification of industrial emissions using ammonium sulfate and the ratios of gaseous species as tracers in industrial regions and nearby in the future. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519704100002 |
WOS关键词 | POSITIVE MATRIX FACTORIZATION ; AEROSOL MASS-SPECTROMETRY ; FIRED POWER-PLANT ; NEW-YORK-CITY ; CHEMICAL-CHARACTERIZATION ; PARTICULATE MATTER ; ORGANIC AEROSOLS ; SOURCE APPORTIONMENT ; INORGANIC AEROSOLS ; CAPTURE VAPORIZER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278674 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China; 3.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 4.Aerodyne Res Inc, Billerica, MA 01821 USA |
推荐引用方式 GB/T 7714 | Lei, Lu,Xie, Conghui,Wang, Dawei,et al. Fine particle characterization in a coastal city in China: composition, sources, and impacts of industrial emissions[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(5):2877-2890. |
APA | Lei, Lu.,Xie, Conghui.,Wang, Dawei.,He, Yao.,Wang, Qingqing.,...&Sun, Yele.(2020).Fine particle characterization in a coastal city in China: composition, sources, and impacts of industrial emissions.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(5),2877-2890. |
MLA | Lei, Lu,et al."Fine particle characterization in a coastal city in China: composition, sources, and impacts of industrial emissions".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.5(2020):2877-2890. |
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