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首页> 外文期刊>Environmental toxicology and chemistry >Spatial and temporal trends of poly- and perfluoroalkyl substances in fish fillets and water collected from pool 2 of the Upper Mississippi River
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Spatial and temporal trends of poly- and perfluoroalkyl substances in fish fillets and water collected from pool 2 of the Upper Mississippi River

机译：从密西西比河上游2池收集的鱼片和水中的多氟烷基和全氟烷基物质的时空趋势

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摘要

In 2011, poly- and perfluoroalkyl substances (PFASs) were analyzed in surface water and fish fillet samples taken from Pool 2 of the Upper Mississippi River, a 33-mile stretch inclusive of the Minneapolis/St. Paul, Minnesota (USA) metropolitan area. Approximately 100 each of bluegill, freshwater drum, smallmouth bass, and white bass were sampled within the study area. Surface water samples were also collected from each of the 10 sampling reaches established for the study. Water and fillet samples were analyzed for perfluorinated carboxylic acids (C4-C12), perfluorinated sulfonic acids (C4, C6, and C8), and perfluorooctane sulfonamide. Perfluorooctane sulfonate (PFOS) was observed with the greatest frequency in fish fillets and ranged from 3.0 to 760ng/g wet weight. Mean (geometric) PFOS concentrations in bluegill, freshwater drum, smallmouth bass, and white bass were 20, 28, 29, and 58ng/g wet weight, respectively. When compared with fish data collected in 2009, a significant reduction (p<0.05) in PFOS concentrations was noted. This finding was confirmed based on data from studies conducted in 2012 and 2013. Overall, between 2009 and 2013, PFOS concentrations decreased by 65, 76, and 50% for bluegill, freshwater drum, and white bass, respectively (44% decrease for smallmouth bass from 2009 to 2012). These declines in fish PFOS concentrations are consistent with ongoing efforts to effectively control sources of PFASs to the Mississippi River. Environ Toxicol Chem 2017;36:3138-3147. (c) 2017 SETAC
机译：2011年，对从密西西比河上游33英里长的密西西比河上游2池采集的地表水和鱼片样品中的聚全氟烷基物质（PFAS）进行了分析。保罗，明尼苏达州（美国）大都会地区。在研究区域内对蓝blue，淡水桶，小嘴鲈和白鲈分别采样了约100个。还从为该研究确定的10个采样点中的每个采样点收集了地表水样品。分析了水和鱼片样品中的全氟羧酸（C4-C12），全氟磺酸（C4，C6和C8）和全氟辛烷磺酰胺。在鱼片中观察到全氟辛烷磺酸（PFOS）的频率最高，湿重为3.0至760ng / g。 blue，淡水鼓，小嘴鲈和白鲈中的全氟辛烷磺酸平均（几何）浓度分别为20、28、29和58ng / g湿重。与2009年收集的鱼类数据相比，发现全氟辛烷磺酸的浓度显着降低（p <0.05）。根据2012年和2013年进行的研究数据证实了这一发现。总体而言，在2009年至2013年之间，,、淡水鼓和白鲈的PFOS浓度分别降低了65％，76％和50％（小口减少了44％） 2009年至2012年的低音）。鱼类全氟辛烷磺酸浓度的下降与有效控制密西西比河全氟辛烷磺酸源的持续努力是一致的。 Environ Toxicol Chem 2017; 36：3138-3147。 （c）2017年SETAC

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