ResearchSpace
→
Browsing by Subject

Browsing by Subject "Sediments"

Now showing items 1-11 of 11

Baseline monitoring of mercury levels in environmental matrices in the Limpopo Province

Author: Walters, Chavon R ; Couto, M ; McClurg, N ; Silwana, B ; Somerset, V Date: Feb 2017 Mercury (Hg) speciation and bioavailability were studied in surface water, surface sediment and freshwater fish samples collected upstream and downstream of the Medupi (currently under construction) and Matimba power stations in the Waterberg ... Read more
A comparison of the cost associated with pollution prevention measures to that required to treat polluted water resources

Author: Oelofse, Suzanna HH ; Roux, S ; De Lange, Willem J ; Mahumani, B ; Le Roux, Wouter J ; Du Preez, M ; Greben, HA ; Steyn, Maronel Date: Mar 2012 Pollution of water resources is largely as a result of human activity and therefore could be prevented to a large degree. The quality of our water resources is deteriorating and downstream water users have to deal with the pollution impacts ... Read more
Discovering the secrets of the Olifants sediments

Author: Petersen, C ; Jovanovic, Nebojsa ; Genthe, Bettina Date: Jul 2012 The polluted Upper Olifants River, in Mpumalanga, has been the focus for many studies in recent years. However, a group of researchers from the CSIR are now also studying an element of the system which has to date been largely overlooked, ... Read more
Effects of engineered nanoparticles on survival, reproduction, and behaviour of freshwater snail, Physa acuta (Draparnaud, 1805)

Author: Musee, N ; Oberholster, Paul J ; Sikhwivhilu, L ; Botha, AM Date: 2010 Increasing uses of engineered nanoparticles (ENPs) in commercial products and industrial applications has eventually resulted to their releases into atmospheric, terrestrial, and aquatic environments. However, knowledge gaps in ENPs toxicity, ... Read more
Is the Southern Benguela a significant regional sink of CO2?

Author: Gregor, L ; Monteiro, Pedro MS Date: May 2013 This study was undertaken to characterise the seasonal cycle of air–sea fluxes of carbon dioxide (CO(sub2)) in the southern Benguela upwelling system off the South African west coast. Samples were collected from six monthly cross-shelf cruises ... Read more
Laser-induced breakdown spectroscopy for quantification of heavy metals in soils and sediments

Author: Ambushe, AA ; Du Plessis, A ; McCrindle, RI Date: Sep 2010 Laser-induced breakdown spectroscopy (LIBS) will be used to determine the contents of heavy metals in soils and sediments. LIBS results will be compared with the results obtained by inductively coupled plasma-optical emission spectrometry ... Read more
Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa

Author: Williams, CR ; Leaner, JL ; Nel, JM ; Somerset, VS Date: Sep 2010 Total mercury (TotHg) and methylmercury (MeHg) concentrations were determined in various environmental compartments collected from water resources of three Water Management Areas (WMAs) - viz. Olifants, Upper Vaal and Inkomati WMAs, potentially ... Read more
A review of the ecology and management of temporarily open/closed estuaries in South Africa, with particular emphasis on river flow and mouth state as primary drivers of these systems

Author: Taljaard, Susan ; Whitfield, AK ; Bate, GC ; Adams, JB ; Cowdely, PD ; Froneman, PW ; Gama, PT ; Strydom, NA ; Theron, AK ; Turpie, JK ; Van Niekerk, Lara ; Wooldridge, TH Date: Jun 2012 Research in South African temporarily open/closed estuaries that includes studies on the hydrodynamics, sediment dynamics, acronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fishes and birds is ... Read more
Rising costs of both sewage treatment and the production of potable water associated with increasing levels of pollution in a portion of the crocodile-west Marico water management area

Author: Roux, SP ; Oelofse, Suzanna HH ; De Lange, Willem J Date: Apr 2010 Substantial quantities of water can be made available for use if the quality of return flows is of sufficient quality or treated to the desired quality. In 2006, in the order of 50% of urban and industrial drainage were returned for re-use ... Read more
SANCOR marine sedimentology programme January 1984-December 1988

Author: Rust, IC Date: Mar 1984 The Marine Sedimentology Programme is the latest phase of a research activity which was initiated in 1966 by the late Professor E S W Simpson. Related research is currently carried out by NRIO, UCT and the Geological Survey. The main objectives ... Read more
A survey of Vibrio cholerae O1 and O139 in estuarine waters and sediments of Beira, Mozambique

Author: Du Preez, M ; Van der Merwe, Martina R ; Cumbana, A ; Le Roux, Wouter J Date: Oct 2010 This study determined whether the estuarine and freshwater environment in Beira, Mozambique, serves as a reservoir of Vibrio cholerae O1 and O139. Ninety-nine estuarine water samples were collected at 6 sites in Beira. An additional 54 samples ... Read more

Now showing items 1-11 of 11

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing by Subject "Sediments"

Browsing by Subject "Sediments"

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Social Connect