Uptake of endocrine-disrupting chemicals by quagga mussels (Dreissena bugensis) in an urban-impacted aquatic ecosystem 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Environmental Science and Pollution Research
年/卷/期
2019 / 26 / 1
页码
250-258
ISSN号
0944-1344
作者单位
Desert Res Inst, Div Hydrol Sci, 755 E Flamingo Rd, Las Vegas, NV 89119 USA;Desert Res Inst, Div Hydrol Sci, 755 E Flamingo Rd, Las Vegas, NV 89119 USA;
作者
Bai, Xuelian;Acharya, Kumud;
摘要
Untreated organic contaminants in municipal wastewater, such as endocrine-disrupting chemicals (EDCs), have become a significant issue in aquatic ecosystems, particularly in freshwater bodies that receive wastewater discharge. This has raised concerns about the accumulation of EDCs in aquatic species via continuous exposure. This study evaluated the uptake of EDCs by quagga mussels (Dreissena bugensis), an invasive species in a water supply reservoir. The field sampling results showed that steroid hormones were not detected in the water samples, and only pharmaceuticals and personal care products were present (0.49 to 36ng/L). Additionally, testosterone was the most abundant steroid in the mussel tissue (6.3 to 20ng/g dry weight), and other synthetic chemicals (i.e., bisphenol A, triclosan, and salicylic acid) were also detected in the mussel tissue (24 to 47ng/g dry weight). After being exposed to exogenous EDCs for 7, 21, and 42days under controlled laboratory conditions, testosterone was not detected in the mussel anymore, but bisphenol A, triclosan, and salicylic acid were found at relatively high levels in the mussel tissue, although the concentrations did not increase over time. Overall, the study demonstrated the uptake of EDCs in quagga mussels, which suggests that this species can be used to reflect water quality deterioration in aquatic ecosystems.
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关键词/主题词
Endocrine-disrupting chemicals;Steroidal hormones;Pharmaceuticals;Invasive species;Bioaccumulation;
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