Selenium in water, sediment, plants, invertebrates, and fish in the blackfoot river drainage
Selenium in water, sediment, plants, invertebrates, and fish in the blackfoot river drainage
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DOI：
10.1023/b:wate.0000049143.55199.76
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发表时间：
2004-11-01
影响因子：
2.9
通讯作者：
Buhl, KJ
中科院分区：
文献类型：
--
作者：
Hamilton, SJ;Buhl, KJ
2000年9月，在爱达荷州东南部的黑脚河流域的9个溪流站点进行了水、表层沉积物、水生植物、水生无脊椎动物和鱼类的采样。硒在这些水生生态系统的组成部分进行了测量，并对数据进行了危害评估。水质特征，如pH值，硬度和电导率是比较均匀的9个网站之间的检查。硒升高的水，沉积物，水生植物，水生无脊椎动物和鱼类从几个网站建议沉积物和食物网循环通过植物和无脊椎动物。硒在8个地点的水（> 5 mug/L）、3个地点的沉积物（> 2 mug/g）、4个地点的水生植物（> 4 mug/g）、5个地点的水生无脊椎动物（> 3 mug/g）和7个地点的鱼（全身> 4 mug/g）中升高到令人担忧的浓度。水环境中硒的危害性评价结果表明，绵羊溪为低危害，特雷尔溪、上鼻涕虫溪、下鼻涕虫溪和下黑脚河为中等危害，安格斯溪、上东米尔克里克、下东米尔克里克和干谷溪为高危害。这项研究的结果是一致的，与以前的调查结果，并表明硒浓度从磷酸盐开采区的东南部爱达荷州在几个生态系统组成部分，足以引起不利影响的黑脚河流域的水生资源。
Nine stream sites in the Blackfoot River watershed in southeastern Idaho were sampled in September 2000 for water, surficial sediment, aquatic plants, aquatic invertebrates, and fish. Selenium was measured in these aquatic ecosystem components, and a hazard assessment was performed on the data. Water quality characteristics such as pH, hardness, and specific conductance were relatively uniform among the nine sites examined. Selenium was elevated in water, sediment, aquatic plants, aquatic invertebrates, and fish from several sites suggesting deposition in sediments and food web cycling through plants and invertebrates. Selenium was elevated to concentrations of concern in water at eight sites (> 5 mug/L), sediment at three sites (> 2 mug/g), aquatic plants at four sites (> 4 mug/g), aquatic invertebrates at five sites (> 3 mug/g), and fish at seven sites (> 4 mug/g in whole body). The hazard assessment of selenium in the aquatic environment suggested low hazard at Sheep Creek, moderate hazard at Trail Creek, upper Slug Creek, lower Slug Creek, and lower Blackfoot River, and high hazard at Angus Creek, upper East Mill Creek, lower East Mill Creek, and Dry Valley Creek. The results of this study are consistent with results of a previous investigation and indicate that selenium concentrations from the phosphate mining area of southeastern Idaho were sufficiently elevated in several ecosystem components to cause adverse effects to aquatic resources in the Blackfoot River watershed.