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Selenium sediment toxicity thresholds and derivation of water quality criteria for freshwater biota of western streams

机译：西部河流淡水生物区硒沉积物毒性阈值和水质标准的推导

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摘要

Waterborne and sediment selenium (Se) data, in conjunction with selected physicochemical parameters, were collected from streams of the middle Arkansas River basin, Colorado. USA, to examine the factors affecting sediment Se accumulation in a lotic environment. An empirical model of dissolved-to-sediment Se transfer in western streams, as an interactive function of sediment organic carbon content (R~2 = 0.78, p ＜ 0.01, n = 34), was developed and validated. Sediment Se and associated biological effects data were compiled from the literature, to provide an estimate of sediment Se concentration thresholds that have biological effects.
机译：从科罗拉多州中部阿肯色河流域的河流中收集了水和沉积物硒（Se）数据，并结合选定的理化参数。美国，研究在抽水环境中影响沉积物硒积累的因素。建立并验证了西部河流溶质-沉积物Se迁移的经验模型，该模型作为沉积物有机碳含量的相互作用函数（R〜2 = 0.78，p ＜0.01，n = 34）。从文献中收集了沉积物硒和相关的生物效应数据，以提供对具有生物效应的沉积物硒浓度阈值的估计。

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