Department of Environmental Sciences, Jozef Stefan Institute, Ljubljana, Slovenia.
Environ Monit Assess. 2010 Apr;163(1-4):263-75. doi: 10.1007/s10661-009-0832-x. Epub 2009 Mar 6.
The Sava River is the biggest tributary to the Danube River. As a part of the 6th FW EU project, Sava River Basin: Sustainable Use, Management and Protection of Resources (SARIB), ecological status of sediments was investigated. In order to assess the geographical distribution in sediment contamination of the Sava River, inorganic and persistent organic pollutants were analyzed in sediments at 20 selected sampling sites along the Sava River from its spring to its outfall into the Danube River. For comparability of data to other river basins the sediment fraction below 63 microm was studied. Due to complexity of the work performed, the results are published separately ("Part I: Selected elements" and "Part II: Persistent organic pollutants"). In the present study, the extent of pollution was estimated by determination of the total element concentrations and by the identification of the most hazardous highly mobile element fractions and anthropogenic inputs of elements to sediments. To assess the mobile metal fraction extraction in 0.11 mol L(-1), acetic acid was performed (first step of the Community Bureau of Reference extraction procedure), while anthropogenic inputs of elements were estimated on the basis of normalization to aluminum (Al) concentration. According to the Water Framework Directive, the following elements were investigated in sediments: cadmium (Cd), lead (Pb), nickel (Ni), and mercury (Hg). Furthermore, copper (Cu), zinc (Zn), chromium (Cr), arsenic (As), and phosphorous (P) were determined. The analyses of sediments demonstrated slightly elevated values for Hg, Cr, and Ni in industrially exposed sites (concentrations up to 0.6, 380, and 210 mg kg(-1), respectively). However, the latter two elements exist in sparingly soluble forms and therefore do not represent an environmental burden. P concentrations were found in elevated concentrations at agricultural areas and big cities (up to 1,000 mg kg(-1)).
萨瓦河是多瑙河最大的支流。作为第 6 个欧盟框架计划（FW）项目的一部分，萨瓦河流域：可持续利用、管理和资源保护（SARIB）项目调查了沉积物的生态状况。为了评估萨瓦河沉积物污染的地理分布，在萨瓦河从源头到注入多瑙河的 20 个选定采样点分析了无机和持久性有机污染物。为了使数据与其他河流流域具有可比性，研究了粒径小于 63 微米的沉积物部分。由于所进行工作的复杂性，结果分别发表（“第一部分：选定元素”和“第二部分：持久性有机污染物”）。在本研究中，通过测定总元素浓度以及确定最危险的高迁移元素部分和元素向沉积物的人为输入，来估计污染程度。为了评估 0.11 摩尔/升乙酸中金属的可提取性（社区参考局提取程序的第一步），同时根据与铝（Al）浓度的归一化来估计元素的人为输入。根据水框架指令，在沉积物中调查了以下元素：镉（Cd）、铅（Pb）、镍（Ni）和汞（Hg）。此外，还测定了铜（Cu）、锌（Zn）、铬（Cr）、砷（As）和磷（P）。沉积物分析表明，在工业暴露区汞（Hg）、铬（Cr）和镍（Ni）的含量略高（浓度分别高达 0.6、380 和 210 毫克/千克）。然而，后两种元素以难溶形式存在，因此不会对环境造成负担。在农业区和大城市发现磷（P）浓度升高（高达 1000 毫克/千克）。
