Browsing by Subject "Microorganisms"
Now showing items 1-5 of 5
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Exposure of poultry farm workers to ammonia, particulate matter and microorganisms in the Potchefstroom district, South Africa
(North-West University, 2005)Motivation: The investigation of agricultural respiratory hazards has lagged behind the investigation of hazards in mining and other heavy industries. Relatively few epidemiological data are available addressing pulmonary ... -
The identification of biomarkers to assist in the hydrological characterisation of a chromium polluted mine
(2013)Chromium is used in many processing applications, which has led to the formation of chromium (VI) waste. Cr(VI) is an unstable, mobile carcinogen, which is interchangeable with Cr(III) under certain environmental conditions. ... -
Investigation of the effect of microorganisms and their metabolites on the mobility of metals in a gold tailing dump in South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2017)This study investigates the mobility of heavy metals and light metals in abandoned mine tailings dumps from the Krugersdorp. Most areas in South Africa which have mines are suffering from waste contamination. Tailings ... -
Potential of solar treatment to lower the microbial contaminants in geophagic clays
(North-West University (South Africa) , Potchefstroom Campus, 2017)Deliberate consumption of earth materials is called geophagia and is practiced worldwide by humans. The various reasons of geophagia practice have been reported in the literature, i.e. why people consume the clays deliberately. ... -
Synthesis and characterisation of silver nanoparticles using leaf extract of Artemisia afra and their in vitro antimicrobial and antioxidant activities
(IET, 2018)In this study, the conversion of silver ions into ∼30.74 nm sized silver nanoparticles (AgNPs) was achieved in 30 min at a reaction temperature of 80–90°C in aqueous leaf extract of Artemisia afra. The synthesised AgNPs ...