کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8872310 | 1622714 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetic and equilibrium based fractionation study of Pb in continental shelf sediment of India
ترجمه فارسی عنوان
مطالعه کینتیک و تعادل بر اساس تجزیه پتاسیم در غلظت رسوب در آفریقای غربی
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
Two independent analytical methods (kinetic and sequential extraction protocols) were used to understand the distribution, stability, and lability of Pb-sediment complexes in Indian continental shelf. The concentrations of sedimentary Pb varied from 12.0 ± 0.6 to 30.4 ± 0.1 mg·kgâ 1 and 15.9 ± 0.3 to 36.7 ± 0.4 mg·kgâ 1 in the western and eastern shelf of India respectively. The kinetic extraction study showed that higher proportion of labile Pb-complexes were present in the eastern shelf sediments (~ 24% of total Pb) than the western shelf sediments (~ 14% of total Pb). The sedimentary organic matter was found to regulate lability of sedimentary Pb complexes. The sequential extraction study suggested that Fe/Mn oxyhydroxide were the primary hosting phase for labile Pb complexes. This study showed that water soluble, exchangeable, carbonate/bicarbonate-Pb complexes in the sediments was labile. This study provides a better physicochemical description of stability or lability of Pb complexes in the coastal sediment of India.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 123, Issues 1â2, 15 October 2017, Pages 188-196
Journal: Marine Pollution Bulletin - Volume 123, Issues 1â2, 15 October 2017, Pages 188-196
نویسندگان
Sucharita Chakraborty, Parthasarathi Chakraborty, Arindam Sarkar, B. Nagender Nath,