Modélisation du panache odorant de Lubrizol

Abstract : On 21-22 January 2013, an odour of natural gas was smelled by many people in the region extending from Paris to London. Quick investigations showed that a significant release of sulphur compounds in the Lubrizol industrial facility, located in the city of Rouen, was responsible of numerous complaints for uncomfortable odours. These complaints, including spatial and temporal information were collected by the French institute for public health surveillance and a regional air quality association (Air Normand). INERIS was asked by the French Ministry in charge of Ecology to model the temporal evolution of the plume. After reconstruction of the source term, dispersions modelling were carried out on both regional and local scales. The CHIMERE air quality model was driven by Météo-France model for the regional scale. Simulations at local scale were conducted by using Micro Swift SPRAY model fed by both AROME fields and observations. At regional scale, modelling results show that the odorant part of the plume is well consistent with the occurrence of complaints. At local scale, using the same set of meteorological input data, correlation between simulations and complaints is slightly lower. Ground meteorological observations used as input data for the local scale modelling give better agreement with the complaints.
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Frédéric Tognet. Modélisation du panache odorant de Lubrizol. Rapport Scientifique INERIS, 2015, 2014-2015, pp.41-42. ⟨ineris-01869533⟩

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