کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6358162 | 1315627 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anthropogenic lead concentrations and sources in Baltic Sea sediments based on lead isotopic composition
ترجمه فارسی عنوان
غلظت و منابع سرب انسانیت در رسوبات دریای بالتیک بر اساس ترکیبات ایزوتوپ سرب
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
The Gulf of GdaÅsk is influenced by heavy metals of anthropogenic origin. In this study, temporal concentration changes of Pb, Zn, Cd, and Cu were studied in six, 50 cm long sediment cores. The main aim of the study was to concentrate on the history of Pb fluxes and Pb isotopic composition (206Pb/207Pb and 208Pb/206Pb) to trace Pb sources. The lowest Pb concentrations (19 μg gâ1) were measured in sediments deposited circa 1860, while the highest Pb concentrations (63-147 μg gâ1) were measured in sediments deposited between 1960s and 70s. Pre-industrial Pb fluxes were 7 Pb m2 yearâ1, while after WWII they reached 199 Pb m2 yearâ1. Highest 206Pb/207Pb ratios (â¼1.22) were measured in the oldest sediment layers, and the lowest 206Pb/207Pb ratios (â¼1.165) were measured in the sediments deposited in 1970s-90s. During the period of highest Pb contamination, the anthropogenic Pb fraction reached up to 93%. A general discussion of the Pb sources, emissions, and loads for Poland is included.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 85, Issue 1, 15 August 2014, Pages 99-113
Journal: Marine Pollution Bulletin - Volume 85, Issue 1, 15 August 2014, Pages 99-113
نویسندگان
Agata Zaborska,