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Now showing items 11-20 of 33
Dermal and respiratory exposure to cobalt salts in a packaging area of a base metal refinery
(North-West University, 2010)
Cobalt is a commonly known sensitiser in industrial settings and has been classified by the IARC as a possible group (2B) human carcinogen. Workers at a South African base metal refinery are potentially exposed to cobalt ...
Exposure of vehicle operators to vibration and noise at a Tanzanian opencast goldmine
(North-West University, 2009)
In this study the exposure of mining vehicle operators, on an opencast goldmine in Tanzania, to certain hazards specific to their occupation was assessed. The aim was to quantify these levels of exposure in order to estimate ...
Evaluation of exposure to airborne soluble platinum in a precious metal refinery during non–routine operations
(North-West University, 2011)
Background: Platinum refinery workers are exposed to various elements during the refining process, with soluble platinum salts posing a potential health risk. Platinum salts are extremely potent sensitisers that can result ...
Exposure of welders to manganese in welding fumes
(North-West University, 2012)
Aims and objectives: The general aim of this study was to determine the personal respiratory exposure and biological monitoring of manganese (Mn) present in welding fumes as well as its neurological influence on welders. ...
Evaluation of heat strain experienced by furnace workers at an iron smelter
(North-West University, 2009)
Background: Any working environment where industrial processes create heat, the
worker is potentially exposed to heat-related illnesses because of the increase in
thermal load from the environment. For these workers to ...
The evaluation and quantification of respirable coal and silica dust concentrations : a task–based approach
(North-West University, 2009)
Silicosis and coal worker's pneumoconiosis are serious occupational respiratory diseases associated with the coal mining industry and the inhalation of respirable dusts that contain crystalline silica. Silica exposure is ...
Electrophysiological effects of fractions isolated from the venom of Parabuthus granulatus on calcium channels in cardiac myocytes
(North-West University, 2004)
Scorpion toxins specific for Na+ and K+ channels, have been studied extensively but relatively little has been done on Ca2+ channel toxins. Toxins in the venom of only two South African scorpions P. transvaalicus and P. ...
Emissions of and exposure to hazardous chemical substances from selected additive manufacturing technologies
(North-West University (South-Africa), 2019)
Background: Additive Manufacturing (AM) is the process of joining feedstock materials one layer at a time in order to produce objects from a three dimensional (3D) computer aided design (CAD). Powder bed fusion (PBF) and ...
Respiratory exposure to hazardous chemical substances during additive manufacturing using nylon and alumide
(North-West University (South-Africa), 2019)
Background: In the additive manufacturing (AM) industry there is very little information available regarding the area emission of and personal exposure to HCSs [particulates, metals and volatile organic compounds (VOCs)] ...
Dermal exposure to arsenic and lead at a base metals refinery
(North-West University (South Africa), 2020)
Background: South Africa is the world’s most prominent supplier of platinum group metals. The refining of platinum group metals consists of three main processes namely: smelting, base metal refining and precious metals ...