کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4427093 | 1309145 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Accumulation of heavy metals in the Oostriku peat bog, Estonia: Determination of binding processes by means of sequential leaching
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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چکیده انگلیسی
The Oostriku peat bog (central Estonia) has been exposed to metal-rich groundwater discharge over a long period of time and has accumulated high concentrations of Fe (up to 40Â wt-%), heavy metals (e.g. Pb, Zn, Mn, Cu), and As. In this study, the peat was characterised with respect to composition and metal content with depth. The peat pore water was analysed and compared to a spring water emerging at the site. Sequential extraction, using a Tessier scheme optimised for iron-rich sediments, was used to understand the relative roles of binding mechanisms involved in the retention of different metals in the peat. Significant difference in depth distribution was found between different metals bound in the peat, which was partly attributed to varying compositions of the peat with depth and different dominant binding mechanisms for different metals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 147, Issue 1, May 2007, Pages 291-300
Journal: Environmental Pollution - Volume 147, Issue 1, May 2007, Pages 291-300
نویسندگان
K. Syrovetnik, M.E. Malmström, I. Neretnieks,