Excessive Copper(II) and Zinc(II) Levels in Drinkable Water Sources in Areas Along the Lake Victoria Shorelines in Siaya County, Kenya
| Autor: | Enos W. Wambu, Teresa Akenga, Wesley Nyaigoti Omwoyo |
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| Rok vydání: | 2015 |
| Předmět: |
Pollution
040301 veterinary sciences Health Toxicology and Mutagenesis media_common.quotation_subject chemistry.chemical_element Zinc Structural basin Toxicology law.invention 0403 veterinary science 03 medical and health sciences 0302 clinical medicine law Spring (hydrology) Ecotoxicology 030212 general & internal medicine media_common geography geography.geographical_feature_category Drinking Water Spectrophotometry Atomic 04 agricultural and veterinary sciences General Medicine Kenya Lakes chemistry Metals Environmental chemistry Environmental science Alluvium Sedimentary rock Public Health Atomic absorption spectroscopy Copper |
| Zdroj: | Bulletin of environmental contamination and toxicology. 96(1) |
| ISSN: | 1432-0800 |
| Popis: | Copper(II) and zinc(II) levels in drinkable water sources in the alluvium areas of the Lake Victoria Basin in Siaya County of Kenya were evaluated to assess the risk posed to resident communities by hydrogeological accumulation of toxic residues in the sedimentary regions of the lake basin. The levels of the metals in water were analyzed by atomic absorption spectroscopy. Metal concentrations ranged from 0.11 to 4.29 mg/L for Cu(II) and 0.03 to 1.62 mg/L for Zn(II), which were both higher than those normally recorded in natural waters. The Cu(II) levels also exceeded WHO guidelines for drinking water in 27% of the samples. The highest prevalence of excessive Cu(II) was found among dams and open pans (38%), piped water (33%) and spring water (25%). It was estimated that 18.2% of the resident communities in the current study area are exposed to potentially toxic levels of Cu(II) through their drinking water. |
| Databáze: | OpenAIRE |
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