کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757384 1622718 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Screening-level risk assessment applied to dredging of polluted sediments from Guanabara Bay, Rio de Janeiro, Brazil
ترجمه فارسی عنوان
ارزیابی ریسک سطوح غربالگری برای اعمال زهکشی رسوبات آلوده از خلیج گوانابرا، ریودوژانیرو، برزیل
کلمات کلیدی
خطر زیست محیطی، مخلوط آلودگی الگوریتم انتگرال، ردیابی فلز دمیدن، مدیریت،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
Guanabara Bay is characterized by predominant eutrophication and anoxic sediments with a mixture of pollutants. The risk prognosis associated with the dumping of its dredged sediments into the open ocean was addressed by our algorithm. Our algorithm could prioritize areas, characterize major processes related to dredging, measure the potential risk of sediments, and predict the effects of sediment mixing. The estimated risk of dredged sediment was > 10-fold than that of ocean sediments. Among metals, mercury represented 50-90% of the total risk. The transfer of dredged material into the ocean or internal dumping in the bay requires a 1:10 dilution to mitigate the risk and bring the risk levels close to that in the EPA criteria, below which there is less likelihood of adverse effects to the biota, and a 1:100 dilution to maintain the original characteristics of the ocean disposal control area. Our algorithm indicator can be used in the design of both aquatic and continental disposal of dredged materials and their management.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 118, Issues 1–2, 15 May 2017, Pages 368-375
نویسندگان
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