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首页> 外文期刊>Water Science and Technology >Sediment and heavy metal distribution and transport in a coastal area affected by a submarine outfall in the Basque Country (northern Spain)
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Sediment and heavy metal distribution and transport in a coastal area affected by a submarine outfall in the Basque Country (northern Spain)

机译：在巴斯克地区（西班牙北部）受海底排污口影响的沿海地区，沉积物和重金属的分布与运输

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In 1989 a submarine outfall was brought into service in the coastal area of Zarautz, in the Basque Country (north of Spain). The outfall discharge point is located at similar to 35 m depth and similar to 1 km offshore. This work deals with the sediment dispersion and distribution patterns in the vicinity of an outfall. The methodological field procedures included bathimetric surveys and sediment sampling for grain size characterization and analysis of organic matter content and heavy metal concentrations. Sediment resuspension and transport paths were estimated. Small-sized sediments have been only deposited in the proximity of the outfall discharge point. Heavy metal distribution in the sediments shows only minor influence of the outfall. Only under storm weather conditions sediments will get into suspension. Sediment transport studies suggest a net transport from the outfall discharge point to the N-NW. It can be established that sediments discharged by the outfall will not be transported coastwards; thus, water quality in this area will not be affected. (C) 1998 IAWQ. Published by Elsevier Science Ltd. [References: 13]
机译：1989年，海底排污口在巴斯克地区（西班牙北部）的扎劳特兹沿海地区投入使用。排污口的位置近似于35 m的深度，近似于离岸1 km。这项工作处理了排水口附近的沉积物扩散和分布模式。该方法学的现场程序包括水深测量和沉积物采样，以进行粒度表征以及分析有机物含量和重金属浓度。估计了泥沙的悬浮和运输路径。小型沉积物仅沉积在排污口附近。沉积物中的重金属分布对排污口的影响很小。只有在暴风雨条件下，沉积物才会进入悬浮状态​​。泥沙运移研究表明，从排污口到N-NW的净运移。可以确定的是，排污口排放的沉积物不会向海岸运输;因此，该地区的水质不会受到影响。 （C）1998 IAWQ。由Elsevier Science Ltd.发布[参考文献：13]

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