کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10115889 | 1622700 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Decadal and spatial variation of Hg concentrations in sediments of a multi-stressor impacted estuary
ترجمه فارسی عنوان
تنوع دهه ای و فضایی غلظت هورمون در رسوبات یک جریان چندگانه ای است
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
The present study has evaluated temporal and spatial mercury trends based on surficial sediment samples and 210Pb-dated sediment profiles. The obtained results show that there are areas close to the main bay's tributary rivers where the Hg content has doubled during the last 15â¯years and regions where it has decreased by a factor of 2, mainly the area close to the navigation channel, which is submitted to periodic dredging. In the inner part of the bay, the most contaminated region, mercury shows a strong association with sulfide. In the same region, based on the 210Pb results, it was possible to calculate the yearly increment on the Hg concentration in the surface sediment, 0.62â¯Î¼gâ¯kgâ1â¯yâ1 to 0.29â¯Î¼gâ¯kgâ1â¯yâ1, according to the distance to the bay's main tributary rivers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 135, October 2018, Pages 1158-1163
Journal: Marine Pollution Bulletin - Volume 135, October 2018, Pages 1158-1163
نویسندگان
Rodrigo A. Gonçalves, Douglas F. Oliveira, Pedro Henrique G. Ferreira, Carlos Eduardo Rezende, Phellipe Almeida, Luiz Drude de Lacerda, José Marcus Godoy,