Knowledge Management System Of Guangzhou Institute of Geochemistry,CAS
Liu, Yuan1,2; Wu, Lina1,2; Huang, Shan1,2; Song, Qicong1,2; Hu, Weiwei3; Chen, Wei3; Wu, Zhijun4; Man, Ruiqi4; He, Yao1,2; Li, Wei1,2; Peng, Yuwen1,2; Liu, Junwen1,2; Song, Wei3; Ma, Nan1,2; Yuan, Bin1,2; Wang, Xinming3; Shao, Min1,2 | |
Sources, size-resolved deposition in the human respiratory tract and health risks of submicron black carbon in urban atmosphere in Pearl River Delta, China | |
Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT |
ISSN | 0048-9697 |
2023-09-15 | |
Volume | 891Pages:11 |
DOI | 10.1016/j.scitotenv.2023.164391 |
Language | 英语 |
WOS Research Area | Environmental Sciences & Ecology |
Abstract | 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. |
Keyword | Black carbon Source apportionment Inhaled particle deposition Size distribution Health risk |
WOS ID | WOS:001022274100001 |
Indexed By | SCI |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.gig.ac.cn/handle/344008/74445 |
Collection | 有机地球化学国家重点实验室 |
Corresponding Author | Huang, Shan |
Affiliation | 1.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China 2.Guangdong Hongkong Macau Joint Lab Collaborat Inno, Guangzhou 511443, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 4.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100871, Peoples R China |
Recommended Citation 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. |
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