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Local Impacts of Coal Mines and Power Plants across Canada. II. Matals, Organics and Toxicity in Sediments

机译:全加拿大煤矿和发电厂的局部影响。二。沉积物中的物质,有机物和毒性

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摘要

A Canada-wide survey was undertaken to study local impacts of coal mines and coal-fired electrical generating stations. The first part dealt with thallium in waters and sediments. This, Part II, deals with metals and organics in sedimnets as well as sediment toxicity to four different organisms. Several elevated metal and PAH concentrations as well as high toxicty (based on biological sediment guidelines) were observed compared to uncontaminated sites. Based on Ontario's sediment guidelines, most of the studied sediments fell in the "marginally to significantly polluted" category of sediment quality, although two belonged to the "grossly polluted" class due to the extremely high concentrations of some metals.
机译:在加拿大范围内进行了一项调查,以研究煤矿和燃煤发电站的当地影响。第一部分涉及水和沉积物中的al。第二部分介绍了sedimnets中的金属和有机物,以及对四种不同生物的沉积物毒性。与未受污染的地点相比,观察到一些金属和PAH浓度升高以及高毒性(基于生物沉积物准则)。根据安大略省的沉积物指南,大多数研究的沉积物属于“边际至严重污染”沉积物质量类别,尽管由于某些金属的浓度极高,其中两种属于“严重污染”类别。

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