Browsing Natural and Agricultural Sciences by Subject "Sediment"
Now showing items 1-10 of 11
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An assessment of dioxins, dibenzofurans and PCBs in the sediments of selected freshwater bodies and estuaries in South Africa
(North-West University, 2007)Persistent organic pollutants (POPs) are a threat to the environment and human health because they are ubiquitous, resistant to degradation, can bio-accumulate in organisms and bio-magnify in food chains. They have a ... -
The determination of dioxin-like POPs in sediments and fish of the Vaal Triangle region, Gauteng, South Africa
(North-West University, 2006)Water resources in South Africa are scarce, and should therefore be protected against pollutants, also from persistent organic pollutants (POPs). This is emphasised by the Stockholm Convention on POPs, which aims at ... -
Determining uranium activity distribution in water streams and sediment in three mining regions of South African
(North-West University (South Africa), 2023)Uranium is a by-product in the mining of gold in South African landscapes (Coetzee et al., 2006). Since these activities are done on land in different provinces of South Africa and near communities inhabited by people ... -
Diversity of zooplankton and aquatic macroinvertebrates in the Ntsikeni Nature Reserve
(North-West University (South Africa). Potchefstroom Campus, 2017)The Ntsikeni Nature Reserve is one of 23 wetlands in South Africa that is designated as a Ramsar Wetland of International Importance. The Ntsikeni wetland complex comprises an area of 1070 ha, located within a provincial ... -
A holistic view on the impact of gold and uranium mining on the Wonderfonteinspruit
(North-West University, 2012)The Wonderfonteinspruit (WFS) flows through the richest gold mining region in the world and has subsequently been exposed to the related pollution for more than a century. In order to determine the extent of mining related ... -
Persistent organic pollutants in biotic and abiotic components of the Orange-Senqu River basin
(North-West University (South Africa), 2023)The Orange-Senqu River Basin (OSRB) stretches over four southern Africa countries that are all Parties to the Stockholm Convention on Persistent Organic Pollutants (SCPOPs). The main tributary, the Vaal River on the eastern ... -
Polycyclic aromatic hydrocarbons (PAHs) in the aquatic ecosystems of Soweto and Lenasia
(North-West University (South Africa), Potchefstroom Campus, 2017)In South Africa, our scarce water resources are fully utilised and its quality threatened by pollution and therefore must be protected. One of the pollutant classes of concern is the polycyclic aromatic hydrocarbons (PAHs). ... -
The presence of persistent organic pollutants and heavy metals in sediment samples from rivers in the Kruger National Park
(2015)Since 2008, large numbers of Nile crocodile (Crocodylus niloticus) carcasses were found in the Kruger National Park (KNP), South Africa. Most of the crocodile carcasses were found in the Olifants Gorge, which is situated ... -
Presence, levels and distribution of pollutants in the estuarine food web : Swartkops River Estuary, South Africa
(North-West University, 2014)Estuaries are among the most productive and diverse of aquatic habitats supporting a rich variety of plants and animals. They are nursery areas for many species of fish harvested by recreational and subsistence anglers. ... -
Selected effects-directed assays in water quality monitoring
(North-West University (South Africa), 2023)Water in South Africa is limited and due to pollution, water of good quality is limited even more. Water is the core of existence, and for this reason it is of utmost importance to monitor and manage the freshwater quality. ...