Heavy Metals Distribution and Speciation in Sediments from Ziqlab Dam - Jordan

Öz

Thirty surface sediment samples from the Ziqlab Dam area were collected and analyzed for nine: elements Pb, Cd, Zn, Mn, Ni, Cu, Fe, Cr, and Co . Metal separation was determined by sequential fraction, The fractions are, a exchangeable, b carbonate» c Fe / Mn oxides d organic, and e residual. The advantage of using these fractions is to provide the mechanism of association of metals with the minerological phases of the sediments. Concentrations of the elements are within, allowable levels except for1 Pb, Cd. and. Zn and in. some locations Ni. Most of the elements were found to be in the residual fraction which clearly indicates that, these metals are primarily immobile and have or bear the least bioavailability.

Anahtar Kelimeler

• Heavy metal, Contamination, Dam. Sediments, Ziglab Dam.

Ürdüm Ziglab Barajı Sedimanlarinda Ağır Metal Dağılımı ve Türleşmesi

Öz

Ziglab Baraj alanından 31 yüzey sediman örneği toplanarak 9 element için Pb, Cd, Zn, .Mn, Ni, Cu, Fe, Cr ve Co analiz edilmiştir.. Metal ayrımı sıralı ayrımlamaya göre yapılmıştır. Ayrımlamalar a değiştirilebilir, b kanbonat, c Fe/Mn oksitlen d organik ve e kalıntı sırasıyla gerçekleştirilmiştir.. Bu ayrımlamaları kullanmanın yararı, metallerin sedimanlerdeki mineralojik tarzlarla bir arada bulunma mekanizmasını dikkate almasıdır. Elementlerin değişimi Pb, Cd ve Zn ve bazı alanlarda Ni dışında izinverilebilir sınırlar içindedir.. .Metallerin çoğu kalıntı kısımda bulunmuştur.. Bu da, bu metallerin başlıca hareketsiz ve biyolojik aktivîteye katılımın en düşük düzeyde olduğunu açıkça göstermektedir

Anahtar Kelimeler

• Ziglab Barajı, ağır metal baraj sedimanı, kirlilik..

Kaynakça

1. Abu-Rukah and Ghreafat: Ion chemistry of the Ziglab Dam and. weathering process, A case study, (in press).
2. Ajay, S.O. and Van Loon, G.W. 1989. Studies on redistribution during the analytical fraction of metals in sediments,. The Science of the Total Envi. 87/88, 171-187..
3. Balls, P.W., 1989. The partition of trace metals between dissolved and particulate phase in European coastal water. A compilation of field data and comparison with laboratory studies. Netherlands Journals of Sea Research. 23, 7-14..
4. Boughriet, A, Qudane, B, Fischer,, J.C, Wartei, M, Léman G, 1992. Variability of dissolved. Mn and Zn in the' Seine: Estuary and chemical speciation of these metals in sequential matter,. Water Research 26: 1359-1378.
5. Coetzee, P. P. 1993,. Determination of Speciation of Heavy Metals in Sediments of the Hortbees port: dam by sequential chemical extraction. Water S. Vol. 9. No. 4, PP 291-300.
6. Comber, S. D. N. Gunn, A. M, and Whalley, C. 1995., Comparison of the partition of trace metals in the Humber and Mersey Estuaries, Marine Pollution Bulletin 30, 851 -860.
7. Forstner, U 1980. Cadium in polluted sediments,.. In: Jo Nriagu (Ed) Cadmium in. the envi.. Vol. 1. New York, Wiley interscience, PP 305-363.
8. Hellman, H. 1972,. Definition and Bedeutung des Backgrounds fut unweltschutzbezogene gaswasserkundliche Untersuchungen.. Dstch Gewuessckd mitt 16: 170-174.

9. Joo.es, B, and Turki, A.. 1997. Distribution, and speciation of heavy metals in surfacial sediments from, the Tees Estuary north. - east England.. Marriue Pollution Bulletin Vol. 34 No. 1.0: PP 768-779.
10. Jordan Valley Authority 1965. Completion report: of Ziglab Dam. .JVA, Govt of Jordan., PP 60-90..
11. Möller,, G. 1979. Schwervetalle in dam sediments des Rheins Verdeungen Seit 1971, Umschau 79 (24): 778-783.
12. Mte.kim,E,E.U, Ekwe.re,J.J, Ukpong,E.E 1993. Hea.vy metal distribution in sediments from Calabar river, south eastern Nigeria, Env. GeoL 21:237-241..
13. Peterson, W. Wallmann, K, Li, PX, Schoroeder, f and Kanauth, H. D. 1995. Exchange of trace elemnets at the sediment - water1 interface during early diagenesis processes. Marine and Freshwater Research 46: 19-26.
14. Salomons, W. and Forstner,, U.. 1984, Metal ions in hydrocycle, Springer, Berlin.
15. Tessier, A, Campbell» P.G..C, and Bisson,. M..1979. Sequential extraction procedure for the speciation. of particulate trace metals.. Anal. Chem.51: 844-851.