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- Clean Air Journal = Tydskrif vir Skoon Lug
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- Volume 14, Issue 1, 2005
Clean Air Journal = Tydskrif vir Skoon Lug - Volume 14, Issue 1, 2005
Volume 14, Issue 1, 2005
Author Gerrit KorneliusSource: Clean Air Journal = Tydskrif vir Skoon Lug 14, pp 2 –3 (2005)More Less
It is my pleasure to report on a year in which NACA made demonstrable progress towards the achievement of its stated objectives.
The Air Quality Bill has almost become an Act (National Environmental Management: Air Quality Act) at the end of a process during which NACA and its members were involved at every opportunity made available by the legislator.
Source: Clean Air Journal = Tydskrif vir Skoon Lug 14, pp 4 –6 (2005)More Less
Arising from concern about possible impacts of petroleum vapours on the local community in a residential area of the south Durban industrial basin, ECOSERV were employed to develop and implement an air quality monitoring program. Benzene, toluene, ethylbenzene and xylene (BTEX) compounds were selected as the most appropriate indicator pollutants for such vapours. Passive (diffusive) measurements of these compounds therefore commenced at several residential locations to evaluate impacts.
Author B.K. BelleSource: Clean Air Journal = Tydskrif vir Skoon Lug 14, pp 7 –12 (2005)More Less
The search for an improved or alternative instrument that will be able to measure occupational exposure more accurately and more reliably is continuing. Several developments have been taken place overseas with regard to real-time monitoring instruments for personal exposure assessment. In the light of these developments, the respirable dust dosimeter (RDD) described by Volkwein et al. (2000) appeared to be a promising development. RDD measures the dust exposure in differential pressure units (mm of Hg) indicating that it is a surrogate for the mass of dust on a gravimetric filter. This paper describes the results of an evaluation on the RDD under laboratory conditions before evaluating them in underground mines for personal dust exposure assessment.
The laboratory study has shown that there is a potential for the RDD sampler as a screening tool for engineering sample purposes. However, RDD was comparatively expensive during the research exercise costing approximately 16UK Pounds per RDD tube. Further, there was no well-accepted procedure on collect dust samples using RDD tube for further quartz analysis. Finally, due to its reasonable estimates of real-time cumulative shift dust exposure, and its small lightweight package, the RDD was further recommended for personal sampling purposes in the South African mines.
Source: Clean Air Journal = Tydskrif vir Skoon Lug 14, pp 13 –16 (2005)More Less
Notwithstanding access to electricity, coal still remains the fuel of preference for cooking and space heating for most low-income households in the central Highveld region. The main reasons are that coal has the desired characteristics of extended heat release, required for space heating. Approximately 1 million households consume just over 1 million tonnes of coal per annum, most of which is burnt during winter. This leads to excessive concentrations of air pollution that have measurable negative impacts on health.
Source: Clean Air Journal = Tydskrif vir Skoon Lug 14, pp 17 –24 (2005)More Less
The South Durban industrial basin comprises residential areas in close proximity to industry. The South Durban Sulphur Dioxide Management System was formed in 1994 in response to concerns regarding SO2 concentrations in the area. A Steering Committee, consisting of representatives from the national and local authorities, industry and the local community, was formed to monitor ambient SO2 concentrations to thereby facilitate informed decision-making on management strategies for industrial pollution control in the South Durban region.