YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Characterization of carbonaceous aerosols over the East China Sea: The impact of the East Asian continental outflow
Wang, Fengwen1; Guo, Zhigang1; Lin, Tian2; Hu, Limin3; Chen, Yingjun4; Zhu, Yifang5; Guo, ZG (reprint author), Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China. guozgg@fudan.edu.cn
2015-06-01
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
Volume110Pages:163-173
Contribution Rank[Wang, Fengwen; Guo, Zhigang] Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China; [Lin, Tian] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China; [Hu, Limin] State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China; [Chen, Yingjun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Zhu, Yifang] Univ Calif Los Angeles, Dept Environm Hlth Sci, Jonathan & Karin Fielding Sch Publ Hlth, Los Angeles, CA 90095 USA
AbstractSeventy-five paired PM2.5 (aerodynamic diameter less than 2.5 mu m) and TSP (total suspended particle) samples collected from a pristine island in the East China Sea (ECS) between October 2011 and August 2012 were analyzed for organic carbon (OC), elemental carbon (EC), and n-alkanes. The island lies in the pathway of continental outflow from Mainland China to the northwest Pacific Ocean driven by the East Asian Monsoon. The concentrations of OC, EC (in mu g/m(3)), and n-alkanes (in ng/m(3)) were highest in winter (means: 4.7, 1.3, 140.1, respectively) and lowest in summer (means: 1.1, 0.3, 17.0, respectively). PM2.5 contained approximately 88% of the OC, 80% of the EC, and 61% of the n-alkanes in TSP. Petroleum residue was the dominant contributor to the n-alkanes. C-12-C-22 n-alkanes with strong even-to-odd predominance observed in winter were attributed to the microbial contribution from sea spray aerosol (SSA) driven by the higher wind speed. There was a higher secondary organic carbon (SOC)/OC ratio in warm seasons (summer and fall) than that in cold seasons (spring and winter). The dominance of primary organic carbon (POC) and EC in cold seasons was possibly mainly due to the influence of the East Asian continental outflow. Three episodes of high concentrations of carbonaceous aerosols were observed, and we focused on the impact of these pollutants from East Asia on the air quality over the ECS. Carbonaceous pollutants were more concentrated in PM2.5 during the fall episode triggered by biomass burning in East China. The winter haze associated with intensive indoor heating in North China brought substantial carbonaceous pollutants, with a minor influence on their size distribution. The dust episode in spring was related to coarse particles (i.e., TSP PM2.5), yielding a distinctly different size distribution. (C) 2015 Elsevier Ltd. All rights reserved.; Seventy-five paired PM2.5 (aerodynamic diameter less than 2.5 mu m) and TSP (total suspended particle) samples collected from a pristine island in the East China Sea (ECS) between October 2011 and August 2012 were analyzed for organic carbon (OC), elemental carbon (EC), and n-alkanes. The island lies in the pathway of continental outflow from Mainland China to the northwest Pacific Ocean driven by the East Asian Monsoon. The concentrations of OC, EC (in mu g/m(3)), and n-alkanes (in ng/m(3)) were highest in winter (means: 4.7, 1.3, 140.1, respectively) and lowest in summer (means: 1.1, 0.3, 17.0, respectively). PM2.5 contained approximately 88% of the OC, 80% of the EC, and 61% of the n-alkanes in TSP. Petroleum residue was the dominant contributor to the n-alkanes. C-12-C-22 n-alkanes with strong even-to-odd predominance observed in winter were attributed to the microbial contribution from sea spray aerosol (SSA) driven by the higher wind speed. There was a higher secondary organic carbon (SOC)/OC ratio in warm seasons (summer and fall) than that in cold seasons (spring and winter). The dominance of primary organic carbon (POC) and EC in cold seasons was possibly mainly due to the influence of the East Asian continental outflow. Three episodes of high concentrations of carbonaceous aerosols were observed, and we focused on the impact of these pollutants from East Asia on the air quality over the ECS. Carbonaceous pollutants were more concentrated in PM2.5 during the fall episode triggered by biomass burning in East China. The winter haze associated with intensive indoor heating in North China brought substantial carbonaceous pollutants, with a minor influence on their size distribution. The dust episode in spring was related to coarse particles (i.e., TSP PM2.5), yielding a distinctly different size distribution. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordCarbonaceous Aerosols Concentration Size Distribution Sources East Asian Continental Outflow East China Sea
Department中科院海岸带环境过程与生态修复重点实验室
Subject AreaEnvironmental Sciences ; Meteorology & Atmospheric Sciences
DOI10.1016/j.atmosenv.2015.03.059
Funding OrganizationEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; ORGANIC-MATTER ; ELEMENTAL CARBON ; BLACK CARBON ; SEASONAL-VARIATIONS ; TRACE-ELEMENTS ; AIR-QUALITY ; ACE-ASIA ; PM2.5 ; URBAN
SubtypeArticle
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS IDWOS:000354591500018
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8617
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorGuo, ZG (reprint author), Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China. guozgg@fudan.edu.cn
Affiliation1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China
2.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China
3.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
5.Univ Calif Los Angeles, Dept Environm Hlth Sci, Jonathan & Karin Fielding Sch Publ Hlth, Los Angeles, CA 90095 USA
Recommended Citation
GB/T 7714
Wang, Fengwen,Guo, Zhigang,Lin, Tian,et al. Characterization of carbonaceous aerosols over the East China Sea: The impact of the East Asian continental outflow[J]. ATMOSPHERIC ENVIRONMENT,2015,110:163-173.
APA Wang, Fengwen.,Guo, Zhigang.,Lin, Tian.,Hu, Limin.,Chen, Yingjun.,...&Guo, ZG .(2015).Characterization of carbonaceous aerosols over the East China Sea: The impact of the East Asian continental outflow.ATMOSPHERIC ENVIRONMENT,110,163-173.
MLA Wang, Fengwen,et al."Characterization of carbonaceous aerosols over the East China Sea: The impact of the East Asian continental outflow".ATMOSPHERIC ENVIRONMENT 110(2015):163-173.
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