Distribution Characteristics and Ecological Risk Assessment of Phthalate Esters in Fuhe River in Chengdu
In this study,the contents of seven phthalate esters(PAEs)in surface water in the urban sections of the Fuhe River in Chengdu were determined with solid phase extraction(SPE)and gas chromatography-gmass spectrometry(GC-gMS),and ecological risk assessment was carried out on these seven PAEs with risk quotients(RQs).The results showed that seven titanate esters were detected in all the detection sites,with detection rates ranging from 50％to 100％.The total mass concentrations(ΣPAEs)of seven PAEs in the wet season and dry season were 1.72-8.27μg/L and 2.26-5.30μg/L,respectively.Main pollutants in the two periods were din-gbutyl phthalate(DBP)and di-g(2-gethylhexyl)phthalate(DEHP).Compared with other types of surface water at home and abroad,the content of seven PAEs in the urban sections of the Fucheng River in Chengdu was at a moderate to low level.The results of ecological risk assessment indicated that seven PAEs in the surface water of the rural sections of the Fuhe River pose high risks to water ecology.
万方数据
维普
