The role of a lowland reservoir in the transport of micropollutants, nutrients and the suspended particulate matter along the river continuum
The role of a lowland reservoir in the transport of micropollutants, nutrients and the suspended particulate matter along the river continuum
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DOI：
10.2166/nh.2012.108
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发表时间：
2012-08
影响因子：
2.7
通讯作者：
M. Urbaniak;E. Kiedrzyńska;M. Zalewski
中科院分区：
文献类型：
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作者：
M. Urbaniak;E. Kiedrzyńska;M. Zalewski
对波兰中部Sulejow水库和Pilica河的水和沉积物样本进行了营养成分分析：总磷（TP）、总氮（TN）、悬浮颗粒物（SPM）和二恶英样多氯联苯（dl-PCBs）浓度。在所有7个采样点的沉积物中均检测到dl -多氯联苯，平均浓度为14.29 ng kg - 1干重（d.w）。在Sulejow水库下方采集的沉积物中，其浓度最低（PR5, 2.92 ng kg - 1 d.w.），而在Pilica河河口采集的沉积物中，其浓度最高（PR7, 26.30 ng kg - 1 d.w.）。总多氯联苯浓度降低了29%，从中部的9.21 ng kg - 1 d.w.降至苏列若水库坝段的6.54 ng kg - 1 d.w.，这表明测量到的污染物在水库沉积物中发生了水力输送和沉积。结果还显示了营养物质和SPM浓度的减少。在Sulejow水库进出水量之间，SPM减少了45%，TP减少了28%，TN减少了34%。
The water and sediment samples from the Sulejow Reservoir and Pilica River (Central Poland) were analysed for nutrients: total phosphorus (TP), total nitrogen (TN) and the suspended particulate matter (SPM) and dioxin-like PCBs (dl-PCBs) concentration. Dl-PCBs were detected in sediments from all seven sampling locations with mean concentrations of 14.29 ng kg � 1 dry weight (d.w.). The lowest concentration was recorded in the sediment collected below the Sulejow Reservoir (PR5; 2.92 ng kg � 1 d.w.) and the highest in the sample collected from the mouth section of the Pilica River (PR7; 26.30 ng kg � 1 d.w.). The 29% reduction of the total dl-PCBs concentration – from 9.21 ng kg � 1 d.w. in the middle section to 6.54 ng kg � 1 d.w. in the dam section of the Sulejow Reservoir – demonstrated the hydraulic transport and deposition of measured pollutants in the reservoir’s sediments. The results obtained also revealed the reduction of nutrients and the SPM concentrations. A 45% reduction of SPM, 28% reduction of TP and 34% of TN was observed between the water inflow and outflow from the Sulejow Reservoir.