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- Volume 15, Issue 1, 2006
Clean Air Journal = Tydskrif vir Skoon Lug - Volume 15, Issue 1, 2006
Volume 15, Issue 1, 2006
President's Report 2005 : delivered at the NACA Annual Conference, Cape Town, 29 / 30 September 2005Author Tony StottSource: Clean Air Journal = Tydskrif vir Skoon Lug 15, pp 2 –4 (2006)More Less
The immediate Past President, Mr Gerrit Kornelius, members of Council, the NACA Branch Chairpersons and committees, members of NACA, Ladies and Gentlemen. The President of NACA, Mr Tony Stott extends his apologies - he is overseas on business and is unable to join us today. On behalf of the President it is my pleasure to present the 2005 report.
Author M.A. OosthuizenSource: Clean Air Journal = Tydskrif vir Skoon Lug 15 (2006)More Less
NACA recently co-sponsored a follow-up of an epidemiology study, the Vaal Triangle Air Pollution and Health Study (YAPS), which was conducted during the early nineties. The main findings of the VAPS study, which involved more than 14 000 children, were that average concentrations of gaseous pollutants were occasionally exceeding standards but that total suspended particulate matter (TSP) in the air was 2.5 times the acceptable level.
Creating partnerships between industry, community and government in the interests of environmental protection and public healthAuthor Cecilia JacobsSource: Clean Air Journal = Tydskrif vir Skoon Lug 15, pp 6 –10 (2006)More Less
This presentation examines an initiative in the Bellville South area in the Western Cape, that sought to bring about collaboration between industries and community-based organisations in the area, as well as government structures at a local, provincial and national level. The purpose of this collaboration was to promote the interests of environmental protection and public health in an area that had been identified as an air pollution 'hotspot' in the Western Cape.
In the presentation I will trace the development of this collaborative initiative over the five-year period 2000 - 2005, and also examine the factors that led to the formation of the Bellville South Environmental Forum (BELSEF). The presentation will also analyse some of the constraining and enabling factors impacting on BELSEF over the past five years, and outline some of the initiatives undertaken in this period. Finally the presentation will frame the work of this forum in a political analysis and make recommendations on the future of such forums and their prospective role in South Africa.
Source: Clean Air Journal = Tydskrif vir Skoon Lug 15, pp 14 –18 (2006)More Less
The Dynamic Air Pollution Prediction System (DAPPS) is a modular computer based system that provides air quality forecasts in an urban environment. DAPPS was established by a South African consortium and has been set up as a pilot study in the City of Cape Town. The key components of DAPPS are a comprehensive spatially and temporally resolved emissions module, a prognostic meteorological module and a photochemical dispersion module. Collectively, this suite provides a predictive and powerful atmospheric chemistry capability that is not readily available in most air quality modelling and information systems. In preliminary validation, modelled concentrations of SO2, NOx and O3 are compared with measured concentrations in the Cape Town monitoring network. Predicted and monitored NOx compare well and the temporal profile is determined largely by motor vehicle activity. The comparison for SO2 confirms that weaknesses exist in the temporal profile assigned to small point sources. Ozone compares favourably, but deficiencies are observed and are attributed to the speciation of VOCs.
Author Kurt FedraSource: Clean Air Journal = Tydskrif vir Skoon Lug 15, pp 19 –24 (2006)More Less
Urban and industrial air quality management faces new and continuing challenges, driven by new legislation and public awareness on the one hand, industrialization and the growth of urban conglomerates and increases in power consumption and traffic on the other. While dispersion modeling for air quality studies is a well established field, the challenge is to integrate scientific tools of analysis with the environmental planning and management process, to involve a large and diverse audience and participants in the policy and decision making processes, and to support new functions such as the information of the public. This requires to integrate air quality models in a conceptual framework that includes and explicitly addresses policy relevant elements such as the control of emission sources including economic criteria, monitoring of ambient air quality and the compliance with standards, and impacts on human health and the environment.
AirWare is an integrated environmental information system for air quality assessment and management (http://www.ess.co.at/AIRWARE). In a sequence of international research projects and numerous application in cities all around the world, AirWare has been developed from a dedicated engineering system implemented on special hardware in the technical division of a users institution, for a few trained specialists, to an Internet based distributed client-server system for a much broader user group with support for public information systems.