Journal
APPLIED WATER SCIENCE
Volume 11, Issue 7, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13201-021-01464-8
Keywords
Heavy metals; Pollution; River sediments; Enrichment factor; Geo-accumulation
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Funding
- Flemish InterUniversity Council (VLIR-UOS), Belgium
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Anthropogenic activities such as mining, agriculture, and urbanization are causing heavy metal contamination in the Spekboom River in South Africa, with high concentrations of Cr and Ni posing a serious threat to aquatic organisms and humans. Urgent action is recommended to control effluents from anthropogenic activities to prevent further pollution.
The impact of anthropogenic activities such as mining, agriculture and urbanization is causing heavy metal contamination in many freshwater ecosystems. The concentrations of eight elements (As, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in the Spekboom River, South Africa, were studied using enrichment factor (EF) and geo-accumulation index (I-geo) to assess the extent of pollution in the river. Sediment samples were collected and analyzed using sequential inductively coupled plasma-optical emission spectrometry. The results showed deterioration of the sediment quality with high concentration of Cr and Ni at all the sites, this is a reflection of contamination from the various anthropogenic activities in the area. The current levels of Cr and Ni could be detrimental to the river and may pose a serious threat to the aquatic organisms and humans, as the sediment could act as a secondary source of metal pollution in the water. It is therefore recommended that urgent action should be taken to control effluents from anthropogenic activities to the river in order to prevent further pollution.
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