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7275174 
Journal Article 
Pollution characteristics and health risk assessment of organic phosphorus flame retardant in snow water of Nanjing 
Wang, Yx; Zhang, Q; Song, Nh; Zhang, Sh; Tao, Ly; Zhao, Y; Han, Zh 
2019 
1 
Zhongguo Huanjing Kexue / China Environmental Science
ISSN: 1000-6923 
39 
12 
Chinese 
Thirteen types of organophosphate esters(OPEs) in snow water in the urban and suburban areas of Nanjing were analyzed by HPLC-MS/MS.The concentrations,pollution characteristics and health risk were also studied along with the source analysis of OPEs.The results showed that 11 types of OPEs were detected in snow water.The total concentration of these 11 OPEs(∑11 OPEs)ranged from 229.1 ng/L to 1175.0 ng/L,with the average concentration of 746.0 ng/L.The samples with highest concentration of OPEs were collected at Maqun,a dense commercial and residential district,and the samples with minimum concentration were collected at the chemical park in the suburbs.TDCPP and TBEP were the dominated OPEs congeners in snow water,and their contribution rates were 26.6% and 20.4%,respectively.Principal component analysis indicated that there might be a common source shared by TBEP and TCPP,TMP and TEP in snow.The attachment of OPEs in snow water might be caused by the long-distance migration and atmospheric dry and wet.The daily exposure of∑11 OPEs for different populations via drinking water was 26.6 to 39.0 ng/(kg d).The associated the non-cancer risk and carcinogenic risk of OPEs were lower than the theoretical risk values,which suggested that the human health risk caused by exposure to OPEs in snow water in the study area was at a low level. 
Environmental Studies; Environmental assessment; Phosphorus; Fire retardant chemicals; Suburban areas; Carcinogens; Residential density; Suburbs; Drinking water; Low level; Exposure; Risk assessment; Water pollution; Organophosphates; Fire retardants; Principal components analysis; Organic chemistry; Pollution; Residential areas; Health risk assessment; Organic phosphorus; Environmental health; Liquid chromatography; High-performance liquid chromatography; Congeners; Health risks; Flame retardants