Browsing by Author "Van Aarde, M.N."
Now showing items 1-12 of 12
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Blootstelling van plaaswerkers aan stof, enkele gevaarlike chemiese substansies en swak ergonomiese toestande
Eloff, Georg (North-West University (South Africa), 2002)In this study an investigation was done on the occupational exposure of farm-wokers on two different farms to dust, dangerous chemical substances and poor ergonomic conditions in the processing and packaging of maize, ... -
Dermal exposure and changes in skin barrier function of base metal refinery workers co-exposed to cobalt and nickel
Du Plessis, J.L.; Eloff, F.C.; Engelbrecht, S.; Laubscher, P.J.; Van Aarde, M.N.; Franken, A. (The South African Society of Occupational Medicin, 2013)Refi nery workers are exposed to many metals, including cobalt and nickel, both of which are skin sensitisers, causing allergic contact dermatitis. Dermal exposure, and changes in skin barrier function [skin hydration, ... -
DNA damage and repair capacity in hairdressers exposed to chemical products: a pilot study
Eloff, F.C.; Preston, R.; Pretorius, P.J.; Du Plessis, J.L.; Laubscher, P.J.; Van Aarde, M.N.; Van der Westhuizen, F.H.; Franken, A. (SASOM, 2013)Hairdressers are exposed to numerous hazardous chemical substances, some of which are known or suspected allergens, carcinogens or organic solvents. The objectives of this study were to compare DNA damage and DNA repair ... -
DNA damage and repair detected by the comet assay in lymphocytes of African petrol attendants: a pilot study
Keretetse, G.S.; Laubscher, P.J.; Du Plessis, J.L.; Pretorius, P.J.; Van der Westhuizen, F.H.; Van Deventer, E.; Van Dyk, E.; Eloff, F.C.; Van Aarde, M.N.; Du Plessis, L.H. (Oxford Univ Press, 2008)Petrol attendants are exposed to petrol volatile organic compounds (VOCs) which may have genotoxic and carcinogenic effects. The single-cell gel electrophoresis assay (comet assay) is a method highly sensitive to DNA damage ... -
Establishing a baseline diesel particulate matter (DPM) exposure profile for an underground mechanized platinum mine
Liebenberg, Marlize Maria Magdalena (North-West University, 2011)Background: Workers are daily exposed to diesel exhaust (DE) and DPM due to the continuous increase of diesel–powered vehicles in the underground mining environment. The National Institute for Occupational Safety and Health ... -
Evaluation of ergonomics in a base metal refinery
Melk, Miranda Rechinah (North-West University, 2005)The aim of the study was to evaluate ergonomics in a Base Metal Refinery (BMR). The hypothesis tested was that the machinery and equipment used and the postures of the workers and the load handled are not in line with ... -
The exposure of maintenance workers to heat stress within ESKOM
Julies, Elton Clive (North-West University (South-Africa), 2000)This study was conducted to determine if maintenance workers were exposed to temperatures above 30°C WBGT and to determine the effect of this on their bodies. Maintenance workers were used as the target group due to ... -
Exposure of poultry farm workers to ammonia, particulate matter and microorganisms in the Potchefstroom district, South Africa
De Jager, Anna Catharina (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 ... -
Exposure to hand–arm vibration and its effects on workers at a mine rock drill repair and maintenance workshop
Visagie, Daniël Petrus (North-West University, 2012)In many occupations, exposure to hand-transmitted vibration (HTV) over a prolonged period causes various disorders involving the vascular, neural and musculoskeletal systems, collectively known as the hand-arm vibration ... -
A health hazard evaluation of workers exposed to solvents during the re-furbishing of chemical rail-tankers
Vergotine, Hilton Wilhelm (North-West University, 2003)This study was aimed at evaluating the health hazards of workers exposed to solvents during the re-furbishing of chemical rail-tankers. The process of re-furbishing comprises of three main and sub processes that requires ... -
Occupational exposure to radon in a South African platinum mine
Schoonhoven, Martin (North-West University, 2012)Background: The Platinum mining operations in South Africa mining platinum containing ore from areas where variable amounts of uranium are found, leading to the possibility of occupational exposure to the radioactive ... -
Underground mine workers' respiratory exposure to selected gasses after the blasting process in a platinum mine
Steyn, Cecil-Roux (2013)Ammonium Nitrate-Fuel Oil (ANFO) is the explosive generally used in the mining industry to blast ore from the rock face. The use and detonation of ANFO explosives in an underground mine is an intrinsically hazardous process. ...