Source apportionment of atmospheric PAHs and their toxicity using PMF: Impact of gas/particle partitioning

Bo Gao; Xin Ming Wang; Xiu Ying Zhao; Xiang Ding; Xiao Xin Fu; Yan Li Zhang; Quan Fu He; Zhou Zhang; Teng Yu Liu; Zou Zhao Huang; Lai Guo Chen; Yan Peng; Hai Guo

doi:10.1016/j.atmosenv.2014.12.006

Source apportionment of atmospheric PAHs and their toxicity using PMF: Impact of gas/particle partitioning

Bo Gao, Xin Ming Wang, Xiu Ying Zhao, Xiang Ding, Xiao Xin Fu, Yan Li Zhang, Quan Fu He, Zhou Zhang, Teng Yu Liu, Zou Zhao Huang, Lai Guo Chen, Yan Peng, Hai Guo

Research output: Journal article publication › Journal article › Academic research › peer-review

71 Citations (Scopus)

Abstract

24-hPM2.5samples were simultaneously collected at six sites in a subtropical city of South China during November-December, 2009. Particle-phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and organic tracers such as hopanes for vehicular emissions (VE), levoglucosan for biomass burning (BB) and picene for coal combustion (CC) were determined. Meanwhile, their gas-phase concentrations were calculated from gas/particle (G/P) partitioning theory using the particle-phase concentrations. The 4 ring PAHs (fluoranthene to chrysene) had lower particle-phase fractions (10%-79%) than other species. Estimated BaPeqand lifetime cancer risk for particle-only (P-only) vs gas+particle (G+P) data sets showed similar values, indicating PAHs with 5-7 rings dominated the carcinogenicity of PAHs. Positive Matrix Factorization (PMF) was applied on both P-only and G+P data sets to estimate the source contributions to PAHs and their toxicity. Three common sources were identified: VE, BB and CC, with CC as the most significant source for both particulate (58%) and total (G+P, 40%) PAHs. While CC exhibited consistent contributions to BaPeqfor P-only (66%) vs G+P (62%) solutions, VE and BB contributions were under- and overestimated by 68% and 47%, respectively by the P-only solution, as compared to the G+P solution. The results provide an insight on the impact of G/P partitioning on the source apportionment of PAHs and their toxicity.

Original language	English
Pages (from-to)	114-120
Number of pages	7
Journal	Atmospheric Environment
Volume	103
DOIs	https://doi.org/10.1016/j.atmosenv.2014.12.006
Publication status	Published - 1 Feb 2015

Keywords

PAHs
Partitioning
PM 2.5
Source apportionment
Toxicity

ASJC Scopus subject areas

General Environmental Science
Atmospheric Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.atmosenv.2014.12.006

Cite this

@article{c09d51b08c9f4e898018392627eda1e4,

title = "Source apportionment of atmospheric PAHs and their toxicity using PMF: Impact of gas/particle partitioning",

abstract = "24-hPM2.5samples were simultaneously collected at six sites in a subtropical city of South China during November-December, 2009. Particle-phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and organic tracers such as hopanes for vehicular emissions (VE), levoglucosan for biomass burning (BB) and picene for coal combustion (CC) were determined. Meanwhile, their gas-phase concentrations were calculated from gas/particle (G/P) partitioning theory using the particle-phase concentrations. The 4 ring PAHs (fluoranthene to chrysene) had lower particle-phase fractions (10%-79%) than other species. Estimated BaPeqand lifetime cancer risk for particle-only (P-only) vs gas+particle (G+P) data sets showed similar values, indicating PAHs with 5-7 rings dominated the carcinogenicity of PAHs. Positive Matrix Factorization (PMF) was applied on both P-only and G+P data sets to estimate the source contributions to PAHs and their toxicity. Three common sources were identified: VE, BB and CC, with CC as the most significant source for both particulate (58%) and total (G+P, 40%) PAHs. While CC exhibited consistent contributions to BaPeqfor P-only (66%) vs G+P (62%) solutions, VE and BB contributions were under- and overestimated by 68% and 47%, respectively by the P-only solution, as compared to the G+P solution. The results provide an insight on the impact of G/P partitioning on the source apportionment of PAHs and their toxicity.",

keywords = "PAHs, Partitioning, PM 2.5, Source apportionment, Toxicity",

author = "Bo Gao and Wang, {Xin Ming} and Zhao, {Xiu Ying} and Xiang Ding and Fu, {Xiao Xin} and Zhang, {Yan Li} and He, {Quan Fu} and Zhou Zhang and Liu, {Teng Yu} and Huang, {Zou Zhao} and Chen, {Lai Guo} and Yan Peng and Hai Guo",

year = "2015",

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doi = "10.1016/j.atmosenv.2014.12.006",

language = "English",

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TY - JOUR

T1 - Source apportionment of atmospheric PAHs and their toxicity using PMF: Impact of gas/particle partitioning

AU - Gao, Bo

AU - Wang, Xin Ming

AU - Zhao, Xiu Ying

AU - Ding, Xiang

AU - Fu, Xiao Xin

AU - Zhang, Yan Li

AU - He, Quan Fu

AU - Zhang, Zhou

AU - Liu, Teng Yu

AU - Huang, Zou Zhao

AU - Chen, Lai Guo

AU - Peng, Yan

AU - Guo, Hai

PY - 2015/2/1

Y1 - 2015/2/1

N2 - 24-hPM2.5samples were simultaneously collected at six sites in a subtropical city of South China during November-December, 2009. Particle-phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and organic tracers such as hopanes for vehicular emissions (VE), levoglucosan for biomass burning (BB) and picene for coal combustion (CC) were determined. Meanwhile, their gas-phase concentrations were calculated from gas/particle (G/P) partitioning theory using the particle-phase concentrations. The 4 ring PAHs (fluoranthene to chrysene) had lower particle-phase fractions (10%-79%) than other species. Estimated BaPeqand lifetime cancer risk for particle-only (P-only) vs gas+particle (G+P) data sets showed similar values, indicating PAHs with 5-7 rings dominated the carcinogenicity of PAHs. Positive Matrix Factorization (PMF) was applied on both P-only and G+P data sets to estimate the source contributions to PAHs and their toxicity. Three common sources were identified: VE, BB and CC, with CC as the most significant source for both particulate (58%) and total (G+P, 40%) PAHs. While CC exhibited consistent contributions to BaPeqfor P-only (66%) vs G+P (62%) solutions, VE and BB contributions were under- and overestimated by 68% and 47%, respectively by the P-only solution, as compared to the G+P solution. The results provide an insight on the impact of G/P partitioning on the source apportionment of PAHs and their toxicity.

AB - 24-hPM2.5samples were simultaneously collected at six sites in a subtropical city of South China during November-December, 2009. Particle-phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and organic tracers such as hopanes for vehicular emissions (VE), levoglucosan for biomass burning (BB) and picene for coal combustion (CC) were determined. Meanwhile, their gas-phase concentrations were calculated from gas/particle (G/P) partitioning theory using the particle-phase concentrations. The 4 ring PAHs (fluoranthene to chrysene) had lower particle-phase fractions (10%-79%) than other species. Estimated BaPeqand lifetime cancer risk for particle-only (P-only) vs gas+particle (G+P) data sets showed similar values, indicating PAHs with 5-7 rings dominated the carcinogenicity of PAHs. Positive Matrix Factorization (PMF) was applied on both P-only and G+P data sets to estimate the source contributions to PAHs and their toxicity. Three common sources were identified: VE, BB and CC, with CC as the most significant source for both particulate (58%) and total (G+P, 40%) PAHs. While CC exhibited consistent contributions to BaPeqfor P-only (66%) vs G+P (62%) solutions, VE and BB contributions were under- and overestimated by 68% and 47%, respectively by the P-only solution, as compared to the G+P solution. The results provide an insight on the impact of G/P partitioning on the source apportionment of PAHs and their toxicity.

KW - PAHs

KW - Partitioning

KW - PM 2.5

KW - Source apportionment

KW - Toxicity

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U2 - 10.1016/j.atmosenv.2014.12.006

DO - 10.1016/j.atmosenv.2014.12.006

M3 - Journal article

SN - 1352-2310

VL - 103

SP - 114

EP - 120

JO - Atmospheric Environment

JF - Atmospheric Environment

ER -

Source apportionment of atmospheric PAHs and their toxicity using PMF: Impact of gas/particle partitioning

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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