کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8399821 1544437 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distribution of metals and extent of contamination in sediments from the south-eastern Baltic Sea (Lithuanian zone)
ترجمه فارسی عنوان
توزیع فلزات و میزان آلودگی در رسوبات دریای جنوب شرقی دریای بالتیک (منطقه لیتوانی)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
The distribution of metals (Pb, Cu, Cd, Ni, Cr, Zn) in surface sediments and the potential pollution sources in the south-eastern part (SE) of the Baltic Sea (Lithuanian zone) were investigated in relation to the environmental characteristics (amount of fine-grained particles, TOC content in sediments, origin of sedimentary organic matter, salinity, water depth) in 2011-2014. The higher metal concentrations were measured in sediments of the Curonian Lagoon and in the open waters. An approach using various environmental indices (enrichment factor EF, geoaccumulation index Igeo and contamination factor CF) was used to quantitatively assess a contamination degree. The principal component analysis (PCA) was applied in order to further scrutinize pollution from metal sources. The values of the contamination indices showed no/very low sediment contamination with Ni and Cr, minor-moderate contamination with Cu, Zn and Pb and moderate-considerable pollution with Cd. The strong relationships among metals suggested their similar distribution pattern and a combination of natural and anthropogenic sources. The higher metal concentrations coincided with an increasing amount of fine-grained fraction and organic carbon. In the territorial waters, the distribution of elements was related to the water depth. In addition, the binding of metals with insoluble iron sulphides might explain their high concentrations at the most remote and deepest stations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Oceanologia - Volume 60, Issue 2, April–June 2018, Pages 193-206
نویسندگان
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