کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4421971 1308527 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distributions of metals in the food web of fishponds of Kolleru Lake, India
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Distributions of metals in the food web of fishponds of Kolleru Lake, India
چکیده انگلیسی

The distributions of trace metals (Pb, Cd, Cr Mn, Zn and Cu) in water, sediment, plankton and four fish species (Labeo rohita, Catla catla, Pangasius pangasius and Cirrhinus mrigala) from fishponds of Kolleru Lake, India were determined using atomic absorption spectroscopy. The concentrations of lead (0.01–0.03 mg/l) and copper (0.01–0.08 mg/l) in water and cadmium (3.0–9.0 mg/kg), chromium (47–211 mg/kg) and copper (10–64 mg/kg) in sediment were above the EPA threshold effects level (TEL) and are of biological concern. The abundance orders of metals were Mn>Cd>Cu>Pb in water, Mn>Cr>Zn>Cu >Pb>Cd in sediment and Cu>Mn>Cr>Zn>Pb>Cd in plankton. The concentrations of the metals in the muscles of these four fish species apparently decrease in the order Zn>Cu>Cr>Mn=Pb>Cd and were well below WHO permissible limits that were safe for human consumption.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 72, Issue 4, May 2009, Pages 1242–1248
نویسندگان
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