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Assessment of 2010 air quality in two Alpine valleys from modelling: Weather type and emission scenarios |
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| Authors: | G Brulfert C Chemel E Chaxel J-P Chollet B Jouve H Villard |
| Institution: | aLaboratory of Geophysical and Industrial Fluid Flows, University J. Fourier, CNRS, INP Grenoble, BP 53, 38041 Grenoble cedex, France;bWaterloo Centre for Atmospheric Sciences, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1;cAir de l’Ain et des Pays de Savoie, Air Quality Agency, 430 rue de la Belle Eau, Z.I. Landiers Nord, 73000 Chambéry, France |
| Abstract: | Alpine valleys are sensitive to anthropogenic emissions. Local atmospheric dynamics are a key factor that may lead to an accumulation of pollutants in the bottom of the Chamonix and Maurienne valleys. Assessment of 2010 pollutant concentrations variability needs to take these specificities into account. A meteorological data classification is combined with different emission scenarios in order to run an air quality model. Using simulations of representative scenarios rather than complete years allows for a fine spatial and temporal representation of local atmospheric dynamics and gives access to detailed chemical breakdowns. Results demonstrate the variability of primary and secondary species due to emissions and the predominance of local effects on pollutant concentrations. |
| Keywords: | Air quality modelling Air pollution Alpine valleys Emission scenarios Meteorological classification |
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