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A comparative validation of the real time air quality simulation and modified systems applications incorporated models for short term sulfur di oxide concentrations in detroit michigan usa



A comparative validation of the real time air quality simulation and modified systems applications incorporated models for short term sulfur di oxide concentrations in detroit michigan usa



Journal of the Air Pollution Control Association 29(7): 720-723



The RAM [Real-time Air-quality Simulation Model] model provided by the USA Environmental Protection Agency was applied to the metropolitan Detroit [Michigan] for SO2 concentrations and compared to concentrations predicted by a numerical model and to field data obtained by the 14 station air sampling network maintained by the Wayne County Air Pollution Control Division. Great care was taken to develop the emission inventory. Based upon examination of the temporal and spatial correspondence of the respective model predictions and observed concentrations, the correlation coefficients for the 24 h averaged data, the correlation coefficients for over 700 3 h averaged observations and the cumulative frequency distributions of the model output and observations, the numerical model provides a superior predictive tool to evaluate cause and effect relations, but that the RAM model, at far lower cost, predicts the correct magnitude of the worst events. RAM might be used in the Detroit Area for statistically based regulatory decisions.

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Accession: 004560181

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