Bulletin of environmental contamination and toxicology, 2012-02, Vol.88 (2), p.166-171
2012
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- Autor(en) / Beteiligte
- Titel
- Seasonal Variability in Cadmium, Lead, Copper, Zinc and Iron Concentrations in the Three Major Fish Species, Oreochromis niloticus, Lates niloticus and Rastrineobola argentea in Winam Gulf, Lake Victoria: Impact of Wash-Off into the Lake
- Ist Teil von
- Bulletin of environmental contamination and toxicology, 2012-02, Vol.88 (2), p.166-171
- Ort / Verlag
- New York: Springer-Verlag
- Erscheinungsjahr
- 2012
- Quelle
- Springer LINK 全文期刊数据库
- Beschreibungen/Notizen
- Trace metals Cadmium (Cd), Lead (Pb), Copper (Cu), Zinc (Zn) and Iron (Fe) were analyzed in edible portions of three main finfish species namely Lates niloticus , Oreochromis niloticus and Rastrineobola argentea sampled from various beaches of Winam Gulf, Lake Victoria, Kenya, in order to determine any seasonal and site variations and the results showed significantly ( p < 0.05) higher mean concentrations of Cd, Cu, Zn and Fe during the wet season compared to the dry season for all the three species indicating the impact of wash-off into the lake during the rainy periods. The overall mean concentrations of the heavy metals (in μg/g dry weight) in all combined samples ranged from 0.17–0.40 (Cd), 0.47–2.53 (Pb), 2.13–8.74 (Cu), 28.9–409.3 (Zn) and 31.4–208.1 (Fe), respectively. It was found that consumption of Rastrineobola argentea can be a significant source of heavy metals especially Zn, to humans, compared with Lates niloticus and Oreochromis niloticus , if only the muscle parts of the latter two are consumed.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0007-4861eISSN: 1432-0800DOI: 10.1007/s00128-011-0472-zTitel-ID: cdi_proquest_miscellaneous_926883692
- Format
- –
- Schlagworte
- Animal populations, Animals, Aquatic Pollution, Cadmium, Cadmium - analysis, Cadmium - metabolism, Cichlids - metabolism, Copper, Copper - analysis, Copper - metabolism, Diet - statistics & numerical data, Dry season, Earth and Environmental Science, Ecotoxicology, Environment, Environmental Chemistry, Environmental Health, Environmental Monitoring, Fish, Fishes - metabolism, Heavy metal content, Heavy metals, Humans, Iron - analysis, Iron - metabolism, Kenya, Lakes, Lakes - chemistry, Lates niloticus, Lead, Metal concentrations, Metals, Heavy - analysis, Metals, Heavy - metabolism, Muscles - metabolism, Oreochromis niloticus, Pollution, Rainy season, Rastrineobola argentea, Seasonal variations, Seasons, Soil Science & Conservation, Toxicity, Trace metals, Waste Water Technology, Water Management, Water Pollutants, Chemical - analysis, Water Pollutants, Chemical - metabolism, Water pollution, Water Pollution Control, Water Pollution, Chemical - statistics & numerical data, Zinc, Zinc - analysis, Zinc - metabolism