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首页> 美国卫生研究院文献>Springer Open Choice >Hexabromocyclododecane diastereomers in fish and suspended particulate matter from selected European waters—trend monitoring and environmental quality standard compliance
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Hexabromocyclododecane diastereomers in fish and suspended particulate matter from selected European waters—trend monitoring and environmental quality standard compliance

机译：欧洲某些水域中鱼类和悬浮颗粒物中的六溴环十二烷非对映异构体—趋势监测和环境质量标准符合性

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The brominated flame retardant hexabromocyclododecane (HBCD) was monitored in fish and sediment (from one lake) or suspended particulate matter (SPM; from five rivers) at European freshwater sites to study the effects of reduction measures implemented by HBCD producers and users in recent years. Bream (Abramis brama) were sampled annually between 2007 and 2013 in the rivers Götaälv/SE, Rhône/FR, Western Scheldt/NL, Mersey/UK, and Tees/UK and in Lake Belau/DE. Sediment/SPM was taken every second year between 2008 and 2014. HBCD was analyzed by LC/MS/MS allowing the determination of the alpha-, beta-, and gamma-diastereomers. For most sites, a decrease in ∑HBCD was observed in fish (e.g., in the Rhône and Western Scheldt by about 80 and 60%, respectively, with significantly decreasing trends, p < 0.01). In the Rhône, HBCD also decreased in SPM. At the sampling site in the Tees which was impacted by a former HBCD point source, fish HBCD levels decreased only after a major flood event in 2013. While fish data indicate a decline in environmental HBCD concentrations at most sites with diffuse emissions, SPM data were less conclusive. The European environmental quality standard for HBCD in fish of 167 μg kg−1 wet weight was met by all fish samples in 2013.Electronic supplementary materialThe online version of this article (doi:10.1007/s11356-017-9469-4) contains supplementary material, which is available to authorized users.
机译：在欧洲淡水站点的鱼类和沉积物（来自一个湖泊）或悬浮颗粒物（SPM；来自五条河流）中监测了溴化阻燃剂六溴环十二烷（HBCD），以研究近年来HBCD生产者和使用者实施的减排措施的效果。在2007年至2013年期间，每年在Götaälv/ SE，Rhône/ FR，Western Scheldt / NL，Mersey / UK，Tees / UK和Belau / DE的河流中采样（Abramis brama）。在2008年至2014年之间每隔两年进行一次沉积物/ SPM测量。通过LC / MS / MS对六溴环十二烷进行分析，从而可以确定α-，β-和γ-非对映异构体。在大多数地点，鱼类中的∑HBCD减少了（例如，在罗纳河和西谢尔德中分别减少了80％和60％，趋势显着下降，p <0.01）。在罗纳河地区，六溴环十二烷的SPM也有所下降。在受前六溴环十二烷点源影响的蒂斯采样点，鱼类六溴环十二烷的水平仅在2013年发生严重洪灾之后才下降。尽管鱼类数据表明大多数散发性排放地点的环境六溴环十二烷浓度有所下降，但SPM数据是结论性较差。 2013年所有鱼类样品均达到了167μgkg −1 湿重鱼的HBCD欧洲环境质量标准。电子补充材料本文的在线版本（doi：10.1007 / s11356-017- 9469-4）包含补充材料，授权用户可以使用。

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