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Assessment of Heavy Metals (Cd, Fe, Cu and Zn) levels in Oreochromis aureus and Cyprins Carpio fish species collected from Shat El-Arab River, Basra-Iraq, as possible indicator of heavy metals toxicity
قيم مستويات المعادن الثقيلة(الكادميوم،الحديد،النحاس والزنك) في اسماط البلطي واسماك الكارب التي تم جمعها من نهر شط العرب في البصرة/العراق،كمؤشر لدرجة سمية العناصر الثقيلة

Author: Dr. Ausama Ayoob Jaccob, Ph.D. Pharmacology and toxicology
Journal: Thi-Qar Medical Journal مجلة ذي قار الطبية ISSN: 19929218 Year: 2016 Volume: 11 Issue: 1 Pages: 142-155
Publisher: Thi-Qar University جامعة ذي قار

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Abstract

Abstract Introduction: Environmental pollution caused by heavy metals has aroused widespread concern around the world. Fishes consider a connecting link for the transfer of toxic metals in human beings. Shatt AlArab is polluted by some different sources of pollutants including power stations, paper industry, oil refineries, and chemical fertilizer companies and overfishing. Accordingly the study was designed to measure Zn, Cu, Fe and Cd concentrations in the scale, bone, and muscle tissues of Bolti (Oreochromis aureus) and common carp( Cyprins Carpio) fish species in Basra, Iraq. Fishes were collected with the help of local fisherman; ten individuals of each species were stored in ice and transported to the laboratory immediately for heavy metals analysis. Results: Zn concentration significantly high in Bolti compared to carpio, Cu level in bones and scales are significantly high in common carpio while muscles show an opposite result. Iron levels are comparable in in both fish species while Cd shows the highest concentration in bone of carpio species. Conclusion: there were variation in heavy metals distribution in tested organs in both fish species, fortunately Zn, Cu, Cd and Fe concentrations in the edible part of the two fish species were below the limits proposed by various international standards and guidelines with significant increase in Cd concentration in fish’s bones.


Article
Determination of Some Heavy Metals in Extraction of Plants by Using AAS Technique
تقدیر بعض العناصر الثقیلة في بعض المستخلصات النباتیة باستخدام تقنیة الامتصاص الذري اللھبي

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Abstract

Abstract:The present study was conduct to determination of heavy metals in the contents of aqueousand organic solvents extracts of plants leaves. Five different types of plant leaves were Neriumoleander ، Conocarpus lancifolins ، Eucalyptus camaldulensis Dehnh, Vicia, Jasminum Humilecollected from different positions at Nasiriya zone were analyzed for heavy metals. The cold aqueousand organic solvents extraction method by using Atomic Absorption Spectroscopy AAS techniquewas used to extraction .The general Main levels of heavy metals in the total analyzed samples werearranged as Fe> Zn> Pb> Cu > Cr respectively. The study showed that there is an ideal solvent toextract all the elements in the above varieties study plants ,and the results compared with standardranges and another studies.

الخلاصةاجریت الدراسة لتقدیر محتوى مستخلصات اوراق خمس انواع من النباتات المذابة في مذیبات عضویة مخت ف لة من العناصر الثقیلةباستخدام جھاز الامتصاص الذري اللھبي والنباتات ھي الدفلة والكاربستا والیوكالبتوس والفیسیا والیاسمین الاخضر.تضمنت الع ا نصر الثقیلة كل من الرصاص والكروم والنحاس والحدید والزنك. جمعت الاوراق من نطاق مدینة الناصریة خلال المدةمن اذار الى نیسان 2011 . استخدمت طریقة المستخلص البارد باستخدام مذیب الایثانول بتركیز 95 % والایثر ال ت بروليوالكلوروفورم والسایكلوھكسان والاسیتون للحصول على المتخلص الخام لھذه الاوراق . بینت النتائج وجود فروقات معنویة فيتراكیز العناصر الثقیلة في النباتات المدروسة باستخدام المذیبات المختلفة .

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