Assessment of heavy metals pollution in sediment at the Omaruru River basin in Erongo region, Namibia
| Autor: | Habauka Majority Kwaambwa, J. Abah, Sylvanus Ameh Onjefu, Euodia Hess, Fatima Shaningwa, Julien Lusilao |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Delta
Heavy metals pollution lcsh:GE1-350 geography Chemical Health and Safety geography.geographical_feature_category Health Toxicology and Mutagenesis Drainage basin Sediment Heavy metals enrichment factor omaruru river Structural basin Contamination Toxicology contamination factor geo-accumulation index sediment lcsh:Environmental pollution Environmental chemistry lcsh:TD172-193.5 Environmental science heavy metals pollution Enrichment factor lcsh:Environmental sciences |
| Zdroj: | Environmental Pollutants & Bioavailability, Vol 32, Iss 1, Pp 187-193 (2020) |
| ISSN: | 2639-5940 |
| Popis: | This study determined the contamination levels of some heavy metals: Mn, Cr, Cu, Ni, Fe, As, and Al obtained from the delta basin of Omaruru River, using Inductively Coupled Plasma-Optical Emission Spectrophotometer (Optima 8000, Perkin Elmer). Chemical analysis showed that the sediments samples have metal concentrations ranging from 88 to 128mg/kg for Mn, 3973 to 4369mg/kg for Fe, 96 to 107mg/kg for Cr, 6 to 9mg/kg for Cu, 9 to 11mg/kg for Ni, 17 to 19mg/kg for As, and 11750 to 9002mg/kg for Al. The concentrations of Cr and As showed suggest that the sediment samples were heavily polluted according to United States Environmental Protection Agency's regulatory guidelines of the heavy metals. Additionally, the concentrations of Cr and As in the sediments exceeded the effect low range, effect medium range, threshold effect level, and the probable effect level proposed by the Canadian Council of Ministers of the Environment. |
| Databáze: | OpenAIRE |
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