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首页> 外文期刊>Environmental toxicology and chemistry >TOXICITY ASSESSMENT OF WATER FROM LAKES AND WETLANDS RECEIVING IRRIGATION DRAIN WATER
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TOXICITY ASSESSMENT OF WATER FROM LAKES AND WETLANDS RECEIVING IRRIGATION DRAIN WATER

机译：接受灌溉排水的湖泊和湿地水的毒性评估

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摘要

A method for reconnaissance-level assessments of the potential toxicity of water in lakes and wetlands that receive irrigation drain water is needed. We evaluated a model that predicts toxicity to aquatic organisms due to major ionic composition as a primary means of assessing water quality. The model was used in conjunction with acute toxicity tests and trace element analyses. Mortality of Ceriodaphnia dubia and fathead minnows (Pimephales promelas) observed in acute toxicity tests was compared to mortality predicted by the model. The method was applied at 22 lakes and wetlands on federally administered lands in Colorado, Montana, Utah, and Wyoming. Fourteen of 22 locations had water that was not toxic to test organisms. Six locations had undiluted water that was toxic to C. dubia due to major ionic composition, and two locations had undiluted water that showed toxic effects caused by factors other than elevated levels of major ions. The model for C. dubia seemed to be sufficiently accurate for future application using our approach to assess lakes and wetlands receiving irrigation drain water.
机译：需要一种对接受灌溉排水的湖泊和湿地中水的潜在毒性进行勘察级评估的方法。我们评估了一种模型，该模型可预测由于主要离子组成对水生生物的毒性，是评估水质的主要手段。该模型与急性毒性试验和微量元素分析结合使用。将在急性毒性试验中观察到的杜鹃花和fat鱼（Pimephales promelas）的死亡率与模型预测的死亡率进行了比较。该方法在科罗拉多州，蒙大拿州，犹他州和怀俄明州的联邦管理土地上的22个湖泊和湿地上得到了应用。 22个场所中有14个场所的水对测试生物无毒。六个地点的未稀释水由于主要的离子组成而对杜仲梭菌有毒，而两个地点的未稀释水则显示出除主要离子含量升高以外的其他因素引起的毒性作用。使用我们的方法评估接受灌溉排水的湖泊和湿地，杜仲假丝酵母的模型对于将来的应用似乎足够准确。

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