Distribution Characteristics and Risk Assessment of PAEs in Drinking Water Sources in Chengdu Plain
MENG Xu
ZHANG Yujiao
LAI Chengyue
HAN Qian
WANG Yalu
YANG Luyao
CHEN Lei
Abstract：In order to investigate the distribution of phthalate esters(PAEs)in drinking water and their environmental risks in Chengdu Plain,the distribution of seven PAEs in 19 drinking water sources was analyzed by SPE-GC-MS,and their health risks and ecological risks were evaluated by risk entropy method.The results showed that the seven PAEs were detected in both dry and abundant water periods,with the detection rates ranging from 86.4%to 100%,and the concentration ranges from nd to 5.12 ng/L.The results of the health risk showed that the non-carcinogenic risk of the seven PAEs was less than 1,which indicated that the non-carcinogenic risk was in the acceptable range.Four site-specific carcinogenic risks were more than 10-6 for both adults and children but were much less than 10-4,which indicated that it might be possible to have a non-carcinogenic risk.The results of fish ecological risk showed that the risk entropy was greater than 1 at five sites,indicating that it has a non-negligible effect on fish.
Keywords：drinking water sourcePAEshuman health riskfish ecological risk
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 134-142 )