Browsing by Subject "limit values"

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Access status: Open Access ,
Numeric dispersion calculations for evaluation measures and prediction of particulate matter emissions by surface mines
(Wydawnictwa AGH, 2009) Böhner, Rebeca; Niemann-Delius, Christian
In January 2005 a new European Legislation on Air Quality became effective. Since this time, strict limit values for particulate matter in the outside air apply to the member states of the European Union. Surface mines have come in the public focus, because particulate matter concentrations are substantial in their vicinity. The material mining industry operating open pits contributes to particulate matter concentrations on account of the spatial extent of its operations and the related processes. According to the EU law every particulate matter polluter is obliged to reduce its emissions and start measures to reduce dust if necessary. Therefore, action plans have been drawn up and implemented for example for the Hambach and the Garzweiler mine in the Rhenish Lignite District in Germany. The measure mostly comprise technical means, but the effect is not yet complete scientifically established. The development of adequate measures to avoid particulate matter emissions is a central task for companies as well as for public authorities An important part in this is the knowledge of the processes that entail particulate matter concentrations. The aim is to pinpoint particulate matter concentrations and detect the processes which are responsible. Next to selective measurements, numeric dispersion models constitute an important monitoring and forecast procedure. The results enable delivering a clear picture of the emissions and their dispersion, to guide planning and to achieve the standards of the current and future air European quality regulations.