Trace metals in water, fish and sediments from Elechi Creek, Port Harcourt, River State, Nigeria
The concentration of trace metals: Cadmium (Cd), Lead (Pb), magnesium (Mn), Nickel (Ni) and Zinc (Zn) were determined in water, sediment and fish tissues (S. melanotheron) collected from Elechi creek in Port Harcourt, Nigeria between October and November, 2010. The overall mean concentrations of the trace metals (Mg/g dry weight) in all combined samples ranged from 0.06-0.24 (Cd), 0.59-2.39 (Pb), 0.08-1.15 (Mn), 0.15-0.48 (Ni) and 0.18-7.04 (Zn) respectively. The concentration of the trace metals in water, fish and sediments were in the following order: Pb >Ni >Zn>Cd >Mn; Zn>Pb >Mn>Ni >Cd and Zn> Pb>Mn>Ni>Cd respectively. Except in water, Zinc had the highest value while cadmium had the lowest value. Mn concentration in fish tissue was greater than WHO/FAO certified values. Correlation coefficients between pairs of metals concentration show that all metals positively correlate except Cadmium and Nickel. Elechi creek is not heavily burdened with metals, but aquatic environment should be monitored periodically to avoid excessive intake of trace metals by human.
| Main Authors: | , |
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| Format: | conference_item biblioteca |
| Language: | English |
| Published: |
FISON
2012
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| Subjects: | Fisheries, Limnology, Pollution, Sarotherodon melanotheron, Nigeria, Elechi Creek, Trace metals, Elechi Creeks, S. Melanotheron, Sediments, brackishwater environment, Pollutants, Pollution effects, Pollution monitoring, Water analysis, Brackishwater fish, Sediment pollution, Brackishwater pollution, Heavy metals, Lead, Cadmium, Zinc, Nickel, Magnesium, |
| Online Access: | http://hdl.handle.net/1834/38910 |
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| Summary: | The concentration of trace metals: Cadmium (Cd), Lead (Pb), magnesium (Mn), Nickel (Ni) and Zinc (Zn) were determined in water, sediment and fish tissues (S. melanotheron) collected from Elechi creek in Port Harcourt, Nigeria between October and November, 2010. The overall mean concentrations of the trace metals (Mg/g dry weight) in all combined samples ranged from 0.06-0.24 (Cd), 0.59-2.39 (Pb), 0.08-1.15 (Mn), 0.15-0.48 (Ni) and 0.18-7.04 (Zn) respectively. The concentration of the trace metals in water, fish and sediments were in the following order: Pb >Ni >Zn>Cd >Mn; Zn>Pb >Mn>Ni >Cd and Zn> Pb>Mn>Ni>Cd respectively. Except in water, Zinc had the highest value while cadmium had the lowest value. Mn concentration in fish tissue was greater than WHO/FAO certified values. Correlation coefficients between pairs of metals concentration show that all metals positively correlate except Cadmium and Nickel. Elechi creek is not heavily burdened with metals, but aquatic environment should be monitored periodically to avoid excessive intake of trace metals by human. |
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