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Citation
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HERO ID
5041246
Reference Type
Journal Article
Title
Characterization of PM2.5-bound phthalic acid esters (PAEs) at regional background site in northern China: Long-range transport and risk assessment
Author(s)
Li, PH; Jia, HY; Wang, Y; Li, T; Wang, L; Li, QQ; Yang, MM; Yue, JJ; Yi, XL; Guo, LQ
Year
2019
Is Peer Reviewed?
1
Journal
Science of the Total Environment
ISSN:
0048-9697
EISSN:
1879-1026
Publisher
Elsevier
Location
AMSTERDAM
Volume
659
Issue
Elsevier
Page Numbers
140-149
Language
English
PMID
30597464
DOI
10.1016/j.scitotenv.2018.12.246
Web of Science Id
WOS:000457293700015
URL
http://www.sciencedirect.com/science/article/pii/S0048969718351155
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Abstract
Eleven major phthalic acid esters (PAEs) congeners were analyzed for PM2.5 samples collected at Mount Tai, a high elevation mountain site in northern China from June to August 2015. The results showed that the average concentration of PAEs in PM2.5 was 19.48ngm-3, and bis(2-Ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP) and diisobutyl phthalate (DIBP) were the predominant species in particle-phase, whereas diethyl phthalate (DEP) and dimethyl phthalate (DMP) were the prevailing PAEs in gas-phase. PAE concentrations decreased at the beginning of cloud/fog events, while they increased after the cloud/fog events since the liquid-phase PAEs could be absorbed by solid-phase PAEs. Potential source contribution function (PSCF) analysis and principal component analysis (PCA) revealed that the highest PSCF value of air masses were mainly sourced from southwest of Mount Tai and multiple sources contributed to PAEs. A Monte Carlo simulation was applied to estimate the incremental lifetime cancer risks (ILCR) from inhalation exposure on the basis of DEHP concentrations. The estimated values of ILCR for the general population were lower than the U.S. Environmental Protection Agency threshold, which is 10-6. However, since the local population was exposed to various local emission sources, the actual health risk is undervalued.
Keywords
PM; Phthalic acid esters; Sources; Transport; Risk assessment
Tags
IRIS
•
Diethyl phthalate (DEP)
Database searches
Jan 2020 update
PubMed
Web of Science
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Secondary Literature
Risk assessments
•
Phthalates – Targeted Search for Epidemiological Studies
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Source-March 2019 Update
WOS
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