Sources, size-resolved deposition in the human respiratory tract and health risks of submicron black carbon in urban atmosphere in Pearl River Delta, China
文献类型：期刊论文
| 作者 | Liu, Yuan2,3; Wu, Lina2,3; Huang, Shan2,3; Song, Qicong2,3; Hu, Weiwei4 ; Chen, Wei4; Wu, Zhijun1; Man, Ruiqi1; He, Yao2,3; Li, Wei2,3
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2023-09-15 |
| 卷号 | 891页码:11 |
| 关键词 | Black carbon Source apportionment Inhaled particle deposition Size distribution Health risk |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.164391 |
| 英文摘要 | Black carbon (BC) has a significantly negative impact on air quality, climate and human health. Here we investigated the sources and health effects of BC in urban area of the Pearl River Delta (PRD) based on online data measured by Aerodyne soot particle high-resolution time of flight aerosol mass spectrometer (SP-AMS). In urban PRD, BC particles mainly came from vehicle emissions especially heavy-duty vehicle exhausts (contributing 42.9 % of total BC mass con-centration), long-range transport (27.6 %), and aged biomass combustion emissions (22.3 %). Indicated by source analysis using simultaneous aethalometer data, BC associated with local secondary oxidation and transport may also be originated from fossil fuel combustion, especially traffic sources in urban and surrounding areas. Size-resolved BC mass concentrations provided by SP-AMS, for the first time to our best knowledge, were used to calculate BC depo-sition in the human respiratory tract (HRT) of different populations (children, adults, and the elderly) by the Multiple -Path Particle Dosimetry (MPPD) model. We found that submicron BC was deposited more in the pulmonary (P) region (49.0-53.2 % of the total BC deposition dose), while less in the tracheobronchial (TB, 35.6-37.2 %) and head (HA, 11.2-13.8 %) regions. Adults suffered the highest BC deposition (1.19 & mu;g day-1) than the elderly (1.09 & mu;g day-1) and children (0.25 & mu;g day-1). BC deposition rate was greater at night (especially 18:00-24:00) than during the day-time. The maximum deposition in the HRT was found for BC particles around 100 nm, mainly in deeper respiratory regions (TB and P), which may cause more serious health effects. Adults and the elderly group are confronted with the notable carcinogenic risk of BC in the urban PRD, up to 29 times higher than the threshold. Our study emphasizes the need to control BC pollution in the urban area, especially nighttime vehicle emissions. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001022274100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74444]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Huang, Shan |
| 作者单位 | 1.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100871, Peoples R China 2.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China 3.Guangdong Hongkong Macau Joint Lab Collaborat Inno, Guangzhou 511443, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yuan,Wu, Lina,Huang, Shan,et al. Sources, size-resolved deposition in the human respiratory tract and health risks of submicron black carbon in urban atmosphere in Pearl River Delta, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,891:11. |
| APA | Liu, Yuan.,Wu, Lina.,Huang, Shan.,Song, Qicong.,Hu, Weiwei.,...&Shao, Min.(2023).Sources, size-resolved deposition in the human respiratory tract and health risks of submicron black carbon in urban atmosphere in Pearl River Delta, China.SCIENCE OF THE TOTAL ENVIRONMENT,891,11. |
| MLA | Liu, Yuan,et al."Sources, size-resolved deposition in the human respiratory tract and health risks of submicron black carbon in urban atmosphere in Pearl River Delta, China".SCIENCE OF THE TOTAL ENVIRONMENT 891(2023):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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