Size-Segregated Characteristics of Organic Carbon (OC) and Elemental Carbon (EC) in Marine Aerosol in the Northeastern South China Sea
文献类型：期刊论文
| 作者 | Liu, Fengxian6,7; Peng, Long5; Dai, Shouhui4; Bi, Xinhui2,3,6; Shi, Meixian1 |
| 刊名 | ATMOSPHERE
 |
| 出版日期 | 2023 |
| 卷号 | 14期号:4页码:661 |
| 关键词 | CHEMICAL CHARACTERISTICS ATMOSPHERIC AEROSOLS SEASONAL-VARIATIONS BOUNDARY-LAYER PM2.5 URBAN IDENTIFICATION GUANGZHOU CLIMATE TIANJIN |
| ISSN号 | 2073-4433 |
| DOI | 10.3390/atmos14040661 |
| 英文摘要 | Organic carbon (OC) and elemental carbon (EC) size-segregated characteristics were analyzed at the junction of sea and land (JSL) and the marine aerosol during the navigation along the northeastern South China Sea (NSCS), including the shallow ocean (NSCS-SO) and the remote ocean (NSCS-RO), from 3 to 20 March 2016. More than 90% of the OC and EC were concentrated in fine particles, and the OC and EC mean concentrations were 10.1 ± 0.63 and 3.44 ± 0.82, 2.67 ± 1.27 and 0.72 ± 0.36, and 1.41 ± 0.50 and 0.40 ± 0.28 μg m?3 in PM3.0 at the JSL, NSCS-SO, and NSCS-RO, respectively. Approximately 75–83% of OC and 84–98% of EC were found in PM1.5. Three sampling sites showed similar OC mass size distributions that had a dominant peak in the 0.49–0.95 μm size range. The mass mean diameters (MMDs) of OC were 0.65 ± 0.15 and 0.59 ± 0.16 μm at the NSCS-SO and NSCS-RO, respectively, followed by 0.53 ± 0.25 μm in fine particles at the JSL. Similar characteristics were found for EC MMDs. Each particle-size bin had OC concentrations that were higher than the EC values of all three sites, and the OC/EC mass ratios were generally more than 2.0. The mean secondary organic carbon (SOC) concentrations in PM1.5 were as follows: JSL (5.42 ± 1.35 μg m?3) > NSCS-SO (1.08 ± 1.02 μg m?3) > NSCS-RO (0.38 ± 0.25 μg m?3), indicating that the contribution of secondary carbonaceous aerosols to organic carbon is relatively low in the remote ocean region. ? 2023 by the authors. |
| WOS研究方向 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000978471300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80258]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.School of Industry and Information Technology of Shanxi Province, Jinzhong; 030600, China 2.Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou; 510640, China 3.Chinese Academy of Sciences (CAS) Center for Excellence in Deep Earth Science, Guangzhou; 510640, China 4.South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou; 510301, China 5.College of Ecology and Environment, Xinjiang University, Urumqi; 830017, China 6.State Key Laboratory of Organic Geochemistry and Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou; 510640, China 7.School of Economics and Management, Taiyuan University of Technology, Taiyuan; 030024, China |
| 推荐引用方式 GB/T 7714 | Liu, Fengxian,Peng, Long,Dai, Shouhui,et al. Size-Segregated Characteristics of Organic Carbon (OC) and Elemental Carbon (EC) in Marine Aerosol in the Northeastern South China Sea[J]. ATMOSPHERE,2023,14(4):661. |
| APA | Liu, Fengxian,Peng, Long,Dai, Shouhui,Bi, Xinhui,&Shi, Meixian.(2023).Size-Segregated Characteristics of Organic Carbon (OC) and Elemental Carbon (EC) in Marine Aerosol in the Northeastern South China Sea.ATMOSPHERE,14(4),661. |
| MLA | Liu, Fengxian,et al."Size-Segregated Characteristics of Organic Carbon (OC) and Elemental Carbon (EC) in Marine Aerosol in the Northeastern South China Sea".ATMOSPHERE 14.4(2023):661. |
入库方式： OAI收割
来源：广州地球化学研究所
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