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Browsing by Subject "Surface water"

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Biological assays for aquatic toxicity testing

Author: Slabbert, JL ; Venter, EA Date: Oct 1999 A number of aquatic toxicity tests have been established for South African use, which include fish and Daphnia lethality tests, microbiotests, and short-term chronic tests. Studies on effluents and surface waters showed that all the tests ... Read more
Evaluation of an inexpensive growth medium for direct detection of Escherichia coli in temperate and sub-tropical waters

Author: Bain, RES ; Woodall, C ; Elliott, J ; Arnold, BF ; Tung, R ; Morley, R ; du Preez, M ; Bartram, JK ; Davis, AP ; Gundry, SW ; Pedley, S Date: Oct 2015 The cost and complexity of traditional methods for the detection of faecal indicator bacteria, including E. coli, hinder widespread monitoring of drinking water quality, especially in lowincome countries and outside controlled laboratory ... Read more
Hydrological science in South Africa: 1995-1998

Author: Ashton, PJ ; Maaren, H ; McKenzie, RS ; Orpen, WRG ; Pitman, W ; Rooseboom, A ; Schulze, RE ; Van Rooyen, PG ; Van Vuuren, SJ Date: Jun 1999 This paper presents recent progress in the hydrological sciences in South Africa as reported to the International Association of Hydrological Sciences on a 4-year basis. It covers hydrology in its broadest sense, in terms of water quantity ... Read more
Method for the prioritization of areas experiencing microbial pollution of surface water

Author: Venter, SN ; Kuhn, AL ; Harris, J Date: 1998 The increased threat of faecal pollution in recent years and the high priority of protecting human health by the government led to the initiation of a national microbial monitoring programme for surface water in South Africa. According to the ... Read more
Monitoring of endocrine disrupting chemicals in surface water

Author: Govender, S ; Williams, WT ; Swart, P Date: Jun 2008 The aim of this paper is to show the development of solid phase polymeric extraction and detection systems for estrogen mimicking agents in aqueous solutions. Specifically this study describes the following 1)development of a recombinant ... Read more
Nanotechnology for potable water and general consumption in developing countries

Author: Hillie, T ; Hlophe, M Date: Aug 2012 This chapter discusses water and its sources; the main focus is put on surface water and ground water. Factors such as water pollution and sewage are also discussed in areas of mining and agriculture. Furthermore the global water challenges ... Read more
Stripping voltammetric determination of palladium, platinum and rhodium in freshwater and sediment samples from South African water resources

Author: Van der Horst, C ; Silwana, B ; Iwuoha, E ; Somerset, V Date: Aug 2012 Stripping voltammetry as technique has proved to be very useful in the analysis of heavy and other metal ions due to its excellent detection limits and its sensitivity in the presence of different metal species or interfering ions. Recent ... Read more
Studies on the prevalence of giardia cysts and cryptosporidium oocysts in South-African water

Author: Kfir, R ; Hilner, C ; Du Preez, M ; Bateman, B Date: 1995 The levels of Giardia cysts and Cryptosporidium oocysts in 650 environmental water samples ere investigated. Cysts and oocysts were found in all types of water tested. The presence of Giardia cysts exceeded Cryptosporidium oocysts both in the ... Read more

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Browsing by Subject "Surface water"

Browsing by Subject "Surface water"

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