Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5747696 | Ecotoxicology and Environmental Safety | 2017 | 8 Pages |
â¢Occurrence of six EDCs in water, sediment and biota in a shallow Chinese freshwater lake.â¢âphenolic EDCs were much higher than âestrogens EDCs in both waters and sediments.â¢NP in surface water may pose a serious threat to aquatic ecosystems.â¢Human health impacts were in the order of cityï¼rural-urbanï¼countryside.
The occurrence, distribution and bioaccumulation of six endocrine disrupting compounds (EDCs) were investigated in water, sediment and biota samples from Luoma Lake, a shallow Chinese freshwater lake. Total concentrations of âphenolic EDCs were much higher than âestrogens EDCs in both waters and sediments. There were not obvious differences on the concentrations of target compounds [except nonylphenol (NP)] in upstream, lake and downstream locations, these may be suggested that they were mainly affected by non-point discharges in this area. However, the high concentration of NP in water may be associated with the discharge of rural domestic wastewater without thorough treatment. Furthermore, concentrations of NP were about 2-3 order magnitude higher than those of OP in both water and sediment compartments. Relatively higher bioaccumulation factors (BAF) were obtained for DES and EE2. Ecological risk assessment revealed greater risk of NP in surface water, which may pose a serious threat to aquatic ecosystems. The estrogen equivalent concentration (EEQ) of male were higher than those in female, and occurred in the order of city >rural-urban>countryside.
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