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首页> 外文期刊>Environmental engineering and management journal >HYDROLOGICAL MODELING OF ARSENIC IN THE DANUBE DELTA
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HYDROLOGICAL MODELING OF ARSENIC IN THE DANUBE DELTA

机译：丹布河三角洲中砷的水文模拟

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摘要

The Danube River forms one of the largest and most complex deltas at the Black Sea, being a Biosphere Reserve, UNESCO World Heritage and Ramsar site. This study assesses the spatial variability of arsenic contamination of the water in the Danube Delta. Water samples were collected during all seasons in 2013 from the south-east of the Danube Delta and analyzed through HG-AAS method for arsenic. Data were handled using two different approaches. First, a complex hydrological model was compiled, using the USEPA WASP modeling software. Secondly, the field measurements were interpolated using GIS software's kriging method to generate prediction maps for the arsenic concentrations. The prediction maps validated the results of the hydrological model, showing that the spatial and seasonal variability of the arsenic concentrations differs depending on the source of the pollution wave, originating upstream in some cases, or being influenced by the marine systv n. Arsenic constantly recorded noticeable variations but at lower concentrations, within the range [0.5-5.88] ug/L. Since arsenic is not destroyed in the environment, WASP model can be extended to the entire Delta and beyond, to study the fate and transport of pollutants on a larger scale. In other case, field observations and sampling would need much more human and financial efforts. According to our knowledge this is the first study which assesses the spatial distribution (hydrological modeling/GIS) of arsenic concentrations in the Danube Delta.
机译：多瑙河是黑海地区最大，最复杂的三角洲之一，是生物圈保护区，联合国教科文组织世界遗产和拉姆萨尔遗址。这项研究评估了多瑙河三角洲中水的砷污染的空间变异性。在2013年的所有季节中，从多瑙河三角洲的东南部收集水样，并通过HG-AAS方法进行砷分析。使用两种不同的方法处理数据。首先，使用USEPA WASP建模软件编译了一个复杂的水文模型。其次，使用GIS软件的kriging方法对现场测量值进行插值，以生成砷浓度的预测图。预测图验证了水文模型的结果，表明砷浓度的空间和季节变化取决于污染波的来源，在某些情况下源自上游或受海洋系统的影响。砷不断记录到明显的变化，但浓度较低，在[0.5-5.88] ug / L范围内。由于砷不会在环境中被破坏，因此可以将WASP模型扩展到整个三角洲及其以外地区，以更大规模地研究污染物的命运和迁移。在其他情况下，现场观察和采样将需要更多的人力和财力。根据我们的知识，这是第一项评估多瑙河三角洲中砷浓度的空间分布（水文模型/ GIS）的研究。

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  • 作者

    Gabriel Gati; Cristian Pop; Florin Brudasca; Anca Elena Gurzau; Marina Spinu;

  • 作者单位

    Environmental Health Center, 58 Busuiocului St., 400240 Cluj-Napoca, Romania,University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca, Romania;

    Environmental Health Center, 58 Busuiocului St., 400240 Cluj-Napoca, Romania,;

    University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca, Romania;

    Environmental Health Center, 58 Busuiocului St., 400240 Cluj-Napoca, Romania,;

    University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca, Romania;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    arsenic; Danube Delta. GIS; WASP modeling;

    机译：砷;多瑙河三角洲。地理信息系统WASP建模;

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