کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6384863 | 1626650 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioavailable trace metals in micro-tidal Thambraparani estuary, Gulf of Mannar, SE coast of India
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Bioavailable trace metals in micro-tidal Thambraparani estuary, Gulf of Mannar, SE coast of India Bioavailable trace metals in micro-tidal Thambraparani estuary, Gulf of Mannar, SE coast of India](/preview/png/6384863.png)
چکیده انگلیسی
Thirty surface sediment samples from two different seasons pre-monsoon (PRM), post-monsoon (POM) were analyzed for texture, carbonates, organic matter (OM) and leachable trace metals (LTMs) (Fe, Mn, Cr, Cu, Ni, Pb, Zn, Cd) from the micro-tidal estuary of Thambraparani river located in Gulf of Mannar, SE coast of India. Finer fractions (mud: 3-87%) and OM (2.6-8.0%) dominate the region and the concentration pattern of LTMs indicate that mostly all the metals are concentrated in the POM season than PRM. Correlation analysis indicates that LTMs are also bound with the OM, mud and are bound with Fe-Mn oxides. Pb concentration (14-103 μg gâ1) exceeds the sediment quality guideline value indicating its anthropogenic origin. Low flow condition exists in the estuarine region due to the control over fresh water inflow in the upstream side and the higher concentration of metals [avg. (μg gâ1) Cr 10; Cu 11; Zn 28] is due to the precipitation from estuarine water to the sediments and is also bioavailable to the marine biota in the region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 146, 5 June 2014, Pages 42-48
Journal: Estuarine, Coastal and Shelf Science - Volume 146, 5 June 2014, Pages 42-48
نویسندگان
M. Jayaprakash, Arya Viswam, V. Gopal, S. Muthuswamy, P. Kalaivanan, L. Giridharan, M.P. Jonathan,