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Occurrence, gas/particle partitioning and carcinogenic risk of polycyclicaromatic hydrocarbons and their oxygen and nitrogen containingderivatives in Xi'an, central China
Wei,C(Wei,Chong)[1,2,3,4]; Han,YM(Han,Yongming)[1,3]; Bandowe,B A. M(Bandowe,Benjamin A. Musa)[2]; Cao,JJ(Cao,Junji)[1,3,5]; Huang,RJ(Huang,Rujin)[1,6]; Ni,HY(Ni,Haiyan)[1,3,4]; Tian,J(Tian,Jie)[1,3,4]; Wilcke,W(Wilcke,Wolfgang)[2,7]
2015-02-01
Source PublicationScience of the Total Environment
Volume505Issue:2015Pages:814-822
Subtype期刊论文
Abstract

29 parent- and alkyl-polycyclic aromatic hydrocarbons (PAHs), 15 oxygenated-PAHs (OPAHs), 11 nitrated-PAHs (NPAHs) and 4 azaarenes (AZAs) in both the gaseous and particulate phases, as well as the particulate-bound carbon fractions (organic carbon, elemental carbon, char, and soot) in ambient air sampled in March and September 2012 from an urban site in Xi'an, central China were extracted and analyzed. The average concentrations (gaseous + particulate) of ∑ 29PAHs, ∑ 15OPAHs, ∑ 11NPAHs and ∑ 4AZAs were 1267.0 ± 307.5, 113.8 ± 46.1, 11.8 ± 4.8 and 26.5 ± 11.8 ng m− 3 in March and 784.7 ± 165.1, 67.2 ± 9.8, 9.0 ± 1.5 and 21.6 ± 5.1 ng m− 3 in September, respectively. Concentrations of ∑ 29PAHs, ∑ 15OPAHs and ∑ 11NPAHs in particulates were significantly correlated with those of the carbon fractions (OC, EC, char and soot). Both absorption into organic matter in particles and adsorption onto the surface of particles were important for PAHs and OPAHs in both sampling periods, with more absorption occurring in September, while absorption was always the most important process for NPAHs. The total carcinogenic risk of PAHs plus the NPAHs was higher in March. Gaseous compounds, which were not considered in most previous studies, contributed 29 to 44% of the total health risk in March and September, respectively.

KeywordPolycyclic Aromatic Compounds Carbon Fractions Gas/particle Partitioning Carcinogenic Risk
DOI10.1016/j.scitotenv.2014.10.054
Indexed BySCI
Language英语
Citation statistics
Cited Times:65[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9499
Collection粉尘与环境研究室
Affiliation1.Key Laboratory of Aerosol Chemistry & Physics (KLACP), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.Geographic Institute, University of Berne, Hallerstrasse 12, 3012 Berne, Switzerland;
3.State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
4.University of Chinese Academy of Sciences, Beijing 100049, China;
5.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an 710049, China;
6.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland;
7.Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Reinhard-Baumeister-Platz 1, 76131 Karlsruhe, Germany
Recommended Citation
GB/T 7714
Wei,C,Han,YM,Bandowe,B A. M,et al. Occurrence, gas/particle partitioning and carcinogenic risk of polycyclicaromatic hydrocarbons and their oxygen and nitrogen containingderivatives in Xi'an, central China[J]. Science of the Total Environment,2015,505(2015):814-822.
APA Wei,C.,Han,YM.,Bandowe,B A. M.,Cao,JJ.,Huang,RJ.,...&Wilcke,W.(2015).Occurrence, gas/particle partitioning and carcinogenic risk of polycyclicaromatic hydrocarbons and their oxygen and nitrogen containingderivatives in Xi'an, central China.Science of the Total Environment,505(2015),814-822.
MLA Wei,C,et al."Occurrence, gas/particle partitioning and carcinogenic risk of polycyclicaromatic hydrocarbons and their oxygen and nitrogen containingderivatives in Xi'an, central China".Science of the Total Environment 505.2015(2015):814-822.
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