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Fine particle-bound polycyclic aromatic hydrocarbons (PAHs) at an urban site of Wuhan, central China: Characteristics, potential sources and cancer risks apportionment.
Environ Pollut. 2019 Mar; 246:319-327.EP

Abstract

Levels, compositions, sources, and cancer risks of fine particle (PM2.5)-bound PAHs were investigated at an urban site of Wuhan, Central China. Totally 115 PM2.5 samples collected during four seasons from 2014 to 2015 were analyzed for 16 USEPA priority PAHs. The annual average of PM2.5 and total PAHs were 106 ± 41.7 μg m-3 and 25.1 ± 19.4 ng m-3, respectively. The seasonal levels of PM2.5 and PAHs varied in a similar trend, with the highest concentrations in winter and the lowest in summer. PM2.5-bound PAHs under different pollution level was discussed and the highest average PAH levels were found at a moderate (115-150 μg m-3) air quality level. Three sources including coal combustion and biomass burning, petrogenic source, and vehicle emissions were extracted and quantified by the positive matrix factorization (PMF) model, accounting for 22.7 ± 21.3%, 34.4 ± 29.0% and 42.9 ± 31.3% of the total PAHs, respectively. The potential source contribution function (PSCF) and the concentration-weighted trajectory (CWT) were combined to explore the geographic origins of PAHs. The spatial distributions of coal combustion and biomass burning, petrogenic source, and vehicle emissions were well correlated with medium molecular weight (MMW), low molecular weight (LMW) and high molecular weight (HMW) PAHs, respectively. Results of PSCF and CWT indicated that the long-distance transport form north of Wuhan as far as northern and eastern of China was higher than that from the southern China while the contribution of local areas was higher than those from the long-range transport. The overall lifetime lung cancer risk (LLCR) via inhalation exposure to PM2.5-bound PAHs was estimated as 3.03 × 10-4, with vehicle emissions contributed 57.1% (1.6 × 10-4) to the total risk on average, followed by coal combustion and biomass burning (31.0%, 9.6 × 10-5), and petrogenic source (11.9%, 3.6 × 10-5).

Authors+Show Affiliations

State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Department of Environmental Science and Engineering, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.Zhanjiang Environmental Protection Monitoring Station, Zhanjiang, 524002, China.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Department of Environmental Science and Engineering, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China. Electronic address: xlxing@cug.edu.cn.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Department of Environmental Science and Engineering, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30557806

Citation

Zhang, Yuan, et al. "Fine Particle-bound Polycyclic Aromatic Hydrocarbons (PAHs) at an Urban Site of Wuhan, Central China: Characteristics, Potential Sources and Cancer Risks Apportionment." Environmental Pollution (Barking, Essex : 1987), vol. 246, 2019, pp. 319-327.
Zhang Y, Zheng H, Zhang L, et al. Fine particle-bound polycyclic aromatic hydrocarbons (PAHs) at an urban site of Wuhan, central China: Characteristics, potential sources and cancer risks apportionment. Environ Pollut. 2019;246:319-327.
Zhang, Y., Zheng, H., Zhang, L., Zhang, Z., Xing, X., & Qi, S. (2019). Fine particle-bound polycyclic aromatic hydrocarbons (PAHs) at an urban site of Wuhan, central China: Characteristics, potential sources and cancer risks apportionment. Environmental Pollution (Barking, Essex : 1987), 246, 319-327. https://doi.org/10.1016/j.envpol.2018.11.111
Zhang Y, et al. Fine Particle-bound Polycyclic Aromatic Hydrocarbons (PAHs) at an Urban Site of Wuhan, Central China: Characteristics, Potential Sources and Cancer Risks Apportionment. Environ Pollut. 2019;246:319-327. PubMed PMID: 30557806.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fine particle-bound polycyclic aromatic hydrocarbons (PAHs) at an urban site of Wuhan, central China: Characteristics, potential sources and cancer risks apportionment. AU - Zhang,Yuan, AU - Zheng,Huang, AU - Zhang,Li, AU - Zhang,Zezhou, AU - Xing,Xinli, AU - Qi,Shihua, Y1 - 2018/12/03/ PY - 2018/04/04/received PY - 2018/11/15/revised PY - 2018/11/30/accepted PY - 2018/12/18/pubmed PY - 2019/4/10/medline PY - 2018/12/18/entrez KW - Cancer risk assessment KW - Fine particle KW - Geographic origins KW - PAHs KW - Positive matrix factorization SP - 319 EP - 327 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ. Pollut. VL - 246 N2 - Levels, compositions, sources, and cancer risks of fine particle (PM2.5)-bound PAHs were investigated at an urban site of Wuhan, Central China. Totally 115 PM2.5 samples collected during four seasons from 2014 to 2015 were analyzed for 16 USEPA priority PAHs. The annual average of PM2.5 and total PAHs were 106 ± 41.7 μg m-3 and 25.1 ± 19.4 ng m-3, respectively. The seasonal levels of PM2.5 and PAHs varied in a similar trend, with the highest concentrations in winter and the lowest in summer. PM2.5-bound PAHs under different pollution level was discussed and the highest average PAH levels were found at a moderate (115-150 μg m-3) air quality level. Three sources including coal combustion and biomass burning, petrogenic source, and vehicle emissions were extracted and quantified by the positive matrix factorization (PMF) model, accounting for 22.7 ± 21.3%, 34.4 ± 29.0% and 42.9 ± 31.3% of the total PAHs, respectively. The potential source contribution function (PSCF) and the concentration-weighted trajectory (CWT) were combined to explore the geographic origins of PAHs. The spatial distributions of coal combustion and biomass burning, petrogenic source, and vehicle emissions were well correlated with medium molecular weight (MMW), low molecular weight (LMW) and high molecular weight (HMW) PAHs, respectively. Results of PSCF and CWT indicated that the long-distance transport form north of Wuhan as far as northern and eastern of China was higher than that from the southern China while the contribution of local areas was higher than those from the long-range transport. The overall lifetime lung cancer risk (LLCR) via inhalation exposure to PM2.5-bound PAHs was estimated as 3.03 × 10-4, with vehicle emissions contributed 57.1% (1.6 × 10-4) to the total risk on average, followed by coal combustion and biomass burning (31.0%, 9.6 × 10-5), and petrogenic source (11.9%, 3.6 × 10-5). SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/30557806/Fine_particle_bound_polycyclic_aromatic_hydrocarbons__PAHs__at_an_urban_site_of_Wuhan_central_China:_Characteristics_potential_sources_and_cancer_risks_apportionment_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(18)31499-4 DB - PRIME DP - Unbound Medicine ER -