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RIZKALLA, E., ABO-DONIA, M. (1996). SOME INDUSTRIAL HEAVY METAL POLLUTANTS IN RIVER NILE AND THEIR EFFECT ON BIOLOGICAL AND NONBIOLOGICAL INHABITANTS I. ESSENTIAL HEAVY METALS. Egyptian Journal of Agricultural Research, 74(1), 225-237. doi: 10.21608/ejar.1996.427358
ESAM H. RIZKALLA; MAHMOUD A. ABO-DONIA. "SOME INDUSTRIAL HEAVY METAL POLLUTANTS IN RIVER NILE AND THEIR EFFECT ON BIOLOGICAL AND NONBIOLOGICAL INHABITANTS I. ESSENTIAL HEAVY METALS". Egyptian Journal of Agricultural Research, 74, 1, 1996, 225-237. doi: 10.21608/ejar.1996.427358
RIZKALLA, E., ABO-DONIA, M. (1996). 'SOME INDUSTRIAL HEAVY METAL POLLUTANTS IN RIVER NILE AND THEIR EFFECT ON BIOLOGICAL AND NONBIOLOGICAL INHABITANTS I. ESSENTIAL HEAVY METALS', Egyptian Journal of Agricultural Research, 74(1), pp. 225-237. doi: 10.21608/ejar.1996.427358
RIZKALLA, E., ABO-DONIA, M. SOME INDUSTRIAL HEAVY METAL POLLUTANTS IN RIVER NILE AND THEIR EFFECT ON BIOLOGICAL AND NONBIOLOGICAL INHABITANTS I. ESSENTIAL HEAVY METALS. Egyptian Journal of Agricultural Research, 1996; 74(1): 225-237. doi: 10.21608/ejar.1996.427358

SOME INDUSTRIAL HEAVY METAL POLLUTANTS IN RIVER NILE AND THEIR EFFECT ON BIOLOGICAL AND NONBIOLOGICAL INHABITANTS I. ESSENTIAL HEAVY METALS

Article 21, Volume 74, Issue 1, March 1996, Page 225-237  XML PDF (3.59 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1996.427358
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Authors
ESAM H. RIZKALLA1; MAHMOUD A. ABO-DONIA2
1Animal Health Research Institute, Agricultural Research Centre, Giza, Egypt
2National Research Centre, Dokki, Giza, Egypt
Abstract
This study involves the determination of levels of four heavy metals: copper, iron, manganese, and zinc in three phases (water, sediment and deboned flesh of tilapia fish) from the upper section of the Rive Nile. In water, all the values were found beow the detection limit. In sediment, the concentrations of studied trace elements were 2, 177 to 47, 345 times higher than those in the water. Tilapia captured in front of Sohag onion manufactory had greater concentrations of Fe and Mn. Data collected during the present study on sediment and tilapia supported the impression that metal-specific differences in the concentration levels existed between the different localities. As can be seen from the data, the mean values for the heavy metal residues in fish deboned flesh show correlations with its concentrations in water for iron and manganese and with sediment concentration for zinc. A significant negative correlation between deboned flesh iron residue and fish length was calculated. The high physiological need for the iron may interpret this observation.
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