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首页> 外文期刊>Archives of Environmental Contamination and Toxicology >Toxicity of Freshwater Sediments in the Vicinity of an Old Sawmill: Application of Three Bioassays
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Toxicity of Freshwater Sediments in the Vicinity of an Old Sawmill: Application of Three Bioassays

机译：锯木厂附近淡水沉积物的毒性：三种生物测定法的应用

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摘要

Toxicity of contaminated sediments collected from an old sawmill area and the downstream river-lake system was assessed with three different bioassays. Survival and growth were used as endpoints in subchronic (10-day) test with Chironomus riparius and growth and reproduction in long-term (28-day) test with Lumbriculus variegatus. A microbial bioluminescent direct contact assay, the Flash test, was also included in the test set to measure acute toxicity. In every bioassay, sediment from a pool of the sawmill was found to be toxic, and some adverse effects were found in other sediments as well. The bioassays were then compared to chemical analysis results, which showed the presence of several toxicants. These results could not, however, be directly connected to any individual toxicant, nor did they show any obvious trend downstream from the mill.
机译：用三种不同的生物测定法评估了从旧锯木厂地区和下游河床系统收集的受污染沉积物的毒性。生存和生长被用作中国慢性百日咳的亚慢性（10天）试验的终点，而百日草则被用作长期（28天）试验的生长和繁殖终点。测试集还包括微生物生物发光直接接触测定法，即Flash测试，以测量急性毒性。在每个生物测定中，都发现锯木厂池中的沉积物是有毒的，其他沉积物中也发现了一些不利影响。然后将生物测定与化学分析结果进行比较，化学分析结果表明存在多种毒物。但是，这些结果不能直接与任何一种有毒物质联系在一起，也不能在工厂下游显示任何明显的趋势。

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    M. Lyytikäinen; A. Sormunen; T. Ristola; R. Juvonen; J. V. K. Kukkonen;

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    Department of Biology University of Joensuu P.O. Box 111 FIN-80110 Joensuu Finland;

    Department of Biology University of Joensuu P.O. Box 111 FIN-80110 Joensuu Finland;

    Department of Biology University of Joensuu P.O. Box 111 FIN-80110 Joensuu Finland;

    Bio-Nobile Oy PO Box 36 Tykistökatu 4 B FIN-20521 Turku Finland;

    Department of Biology University of Joensuu P.O. Box 111 FIN-80110 Joensuu Finland;

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