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Characterization and health risk assessment of PM2.5-bound polycyclic aromatic hydrocarbons in 5 urban cities of Zhejiang Province, China

Scientific reports, 2019-05, Vol.9 (1), Article 7296 [Peer Reviewed Journal]

The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2019 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-019-43557-0 ;PMID: 31086237

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  • Title:
    Characterization and health risk assessment of PM2.5-bound polycyclic aromatic hydrocarbons in 5 urban cities of Zhejiang Province, China
  • Author: Mo, Zhe ; Wang, Zhifang ; Mao, Guangming ; Pan, Xuejiao ; Wu, Lizhi ; Xu, Peiwei ; Chen, Shuchang ; Wang, Aihong ; Zhang, Yongli ; Luo, Jinbin ; Ye, Xialiang ; Wang, Xiaofeng ; Chen, Zhijian ; Lou, Xiaoming
  • Subjects: Air quality measurements ; Benzo(a)pyrene ; Health risk assessment ; Particulate matter ; Pollution levels ; Polycyclic aromatic hydrocarbons ; Pyrene ; Risk assessment ; Trends ; Winter
  • Is Part Of: Scientific reports, 2019-05, Vol.9 (1), Article 7296
  • Description: In 2015, we measured polycyclic aromatic hydrocarbons (PAHs) in atmospheric fine particulate matter (PM2.5) collected from 5 cities in Zhejiang Province. The mean toxic equivalent quotient (TEQ) values of benzo(a)pyrene (BaP) ranged between 1.2–3.1 ng/m3. The BaP-TEQ displayed seasonal trends, such that winter > spring and autumn > summer. During the winter, the most abundant individual PAHs were 4–6ring PAHs (84.04–91.65%). The median daily intake of atmospheric PAHs ranged between 2.0–7.4 ng/day for all populations, with seasonal trends identical to that of BaP-TEQ. The 95th incremental lifetime cancer risk (ILCR) values induced by PM2.5-bound PAHs were far lower than 10−6 for all populations. The data suggested that the pollution levels in the 5 Zhejiang Province cities were higher than the Chinese National Ambient Air Quality Standard (NAAQS). In the future, relevant measures should be taken to control atmospheric PAHs, especially 4–6 ring PAHs. The data also revealed no obvious cancer risk for populations residing in these 5 cities of Zhejiang Province.
  • Publisher: London: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-019-43557-0
    PMID: 31086237
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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