کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757267 1622715 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metal concentrations and toxicity in South African snoek (Thyrsites atun) and yellowtail (Seriola lalandi)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Metal concentrations and toxicity in South African snoek (Thyrsites atun) and yellowtail (Seriola lalandi)
چکیده انگلیسی
The concentrations of 16 metals were assessed in snoek(Thyrsites atun; n = 20) and yellowtail (Seriola lalandi; n = 37) sampled from the West and South-East coasts of South Africa. Variability was observed at both small (Al, Cr, Hg, Pb, Mn and Cu) and large (As and Cu) spatial scales while inter-specific examination revealed diverse metal concentrations in snoek (Higher levels: Cr, Mn, Co, Hg and Pb) and yellowtail (higher levels: Fe and Cu). Zn, As and Hg were positively correlated with yellowtail size with no such correlations in snoek. Mean concentrations of As (0.61 mg·kg− 1; 0.98 mg·kg− 1), Cd (0.008 mg·kg− 1; 0.004 mg·kg− 1), Hg (0.27 mg·kg− 1; 0.16 mg·kg− 1) and Pb (0.009 mg·kg− 1; 0.005 mg·kg− 1) for snoek and yellowtail respectively were within regulatory guidelines. However, 10% (n = 2) of snoek exceeded Hg maximum allowable limit, suggesting caution and further investigation. Overall, two meals (150 g) per week of snoek or larger yellowtail (12-15 kg) can be safe for human (adult) consumption.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 122, Issues 1–2, 15 September 2017, Pages 360-365
نویسندگان
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