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Occurrence and human exposure assessment of organophosphate esters in atmospheric PM2.5 in the Beijing-Tianjin-Hebei region, China
Zhang, Weiwei; Wang, Pu; Zhu, Ying; Wang, Dou; Yang, Ruiqiang; Li, Yingming; Matsiko, Julius; Zuo, Peijie; Qin, Long; Yang, Xing; Zhang, Qinghua; Jiang, Guibin
2020-12-15
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
Volume206Pages:1-8
AbstractOrganophosphate esters (OPEs) in atmospheric fine particles (PM2.5) were comprehensively investigated in the Beijing-Tianjin-Hebei (BTH) region from April 2016 to March 2017. The concentrations of Sigma 8OPEs in all the five sampling sites ranged from 90 to 8291 pg/m(3) (mean 1148 + 1239 pg/m(3); median 756 pg/m(3)). The highest level (median 1067 pg/m(3)) was found at one of the urban sites in Beijing, followed by Tianjin (746 pg/m(3)) and Shijiazhuang (724 pg/m(3)). Tris(2-chlomethyl) phosphate (TCEP) and tri[(2R)-1-chloro-2-propyl] phosphate (TCPP) were the dominant compounds across the five sampling locations. Generally, the concentrations of chlorinated OPEs were relatively higher in summer than in winter (p < 0.05), but no significant seasonal difference was discovered for non-chlorinated individual OPEs. The concentrations of tri-n-butyl phosphate (TBP), TCEP, TCPP and triphenyl phosphate (TPP) were positively correlated with the meteorological parameters (i.e. temperature and relative humidity) (p < 0.05), indicating an evident influence of meteorological condition on OPE distribution. We observed a negative correlation (p < 0.05) between octanol-air partition coefficients (logK(oa)) and the ratio of PM2.5 -bound OPE concentrations to total suspended particulates-bound OPE concentrations, suggesting that physicochemical properties affect the particle-size distribution of OPEs. Furthermore, the median value of cancer hazard quotients (HQs) of TCEP was higher than TBP and tris(2-ethylhexyl) phosphate (TEHP). The health risk assessment showed that HQ values for children were similar to 1.6 times higher than those for adults. Relatively higher health risk induced by PM2.5-bound OPEs via inhalation was found during severe hazy days than in clear days.
Department环境化学与生态毒理学国家重点实验室
KeywordOrganophosphate esters The Beijing-Tianjin-Hebei region Atmospheric fine particles Health risk assessment
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/44755
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
GB/T 7714
Zhang, Weiwei,Wang, Pu,Zhu, Ying,et al. Occurrence and human exposure assessment of organophosphate esters in atmospheric PM2.5 in the Beijing-Tianjin-Hebei region, China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,206:1-8.
APA Zhang, Weiwei.,Wang, Pu.,Zhu, Ying.,Wang, Dou.,Yang, Ruiqiang.,...&Jiang, Guibin.(2020).Occurrence and human exposure assessment of organophosphate esters in atmospheric PM2.5 in the Beijing-Tianjin-Hebei region, China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,206,1-8.
MLA Zhang, Weiwei,et al."Occurrence and human exposure assessment of organophosphate esters in atmospheric PM2.5 in the Beijing-Tianjin-Hebei region, China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 206(2020):1-8.
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