University of Washington Tacoma, Center for Urban Waters, 326 East D Street, Tacoma, WA 98421, USA.
Washington Department of Fish and Wildlife, 1111 Washington St SE, Olympia, WA 98501, USA.
Sci Total Environ. 2020 Mar 20;709:136098. doi: 10.1016/j.scitotenv.2019.136098. Epub 2019 Dec 18.
Bay mussels (Mytilus trossulus) were transplanted to 18 locations representing a range of potential exposures throughout Puget Sound, WA. Tissues were analyzed for over 200 organic contaminants. Results indicated the widespread exposure of marine organisms to trace levels of organic contaminants including the synthetic opioid oxycodone, present at three urban sites, and the chemotherapy drug melphalan, present at nine locations, at levels that may be of biological concern. Land-use and wastewater outfalls were evaluated as potential sources of CECs to the nearshore. Exposure to alkylphenol ethoxylates was associated with increased impervious surfaces in upland watersheds. A hydrodynamic simulation was performed using the Salish Sea Model to integrate inputs from 99 wastewater sources to Puget Sound. Predictions were consistent with concentrations of several wastewater-associated contaminants and δN enrichment. These results support the notion that Puget Sound nearshore biota suffer chronic exposures to a suite of contaminants from multiple sources and provide critical to focus future monitoring and management.
贻贝（Mytilus trossulus）被移植到了华盛顿州普吉特海湾的 18 个地点，这些地点代表了一系列潜在的暴露区域。对这些组织进行了 200 多种有机污染物的分析。结果表明，海洋生物广泛接触痕量水平的有机污染物，包括在三个城市地点存在的合成阿片类药物羟考酮，以及在九个地点存在的化疗药物美法仑，其水平可能具有生物学意义。土地利用和污水排放口被评估为近岸地区的 CECs 的潜在来源。烷基酚聚氧乙烯醚的暴露与上游流域不透水表面的增加有关。使用 Salish Sea 模型进行了水动力模拟，以整合来自 99 个污水源的数据到普吉特海湾。预测结果与几种与污水相关的污染物和δN 富集的浓度一致。这些结果支持了普吉特海湾近岸生物群遭受来自多种来源的一系列污染物的慢性暴露的观点，并为未来的监测和管理提供了关键的重点。
