Géovariances, 49 bis, av. Franklin Roosevelt, 77212 AVON <deraismegeovariances.fr>. Air Normand, 21, av. de la porte des champs, 76000 ROUEN
- Key words: models; statistical; environmental monitoring; risk assessment; air pollutants.
- Page(s) : 168-75
- Published in: 2003
Geostatistics has long been applied in the mining and oil industries. In the past decade, its use has been extended to the study of all physical phenomena occurring in space, with important theoretical and practical results. This article, intended to present the contributions geostatistics can make to the study of air pollution, summarizes the basic concepts of this discipline from an intuitive perspective and illustrates them with a real case, based on a passive sampling campaign for nitrogen dioxide pollution in the Rouen area. This campaign had two separate goals: the provision of accurate maps of the different pollutants, to be made available to the public, and the quantification of risks (thresholds exceeded, exposure, etc.) in relation to ever more restrictive and precise regulations. Geostatistics, as a branch of probability theory, is particularly useful in dealing with these two issues, because its rigorous framework is especially appropriate for the development of operational methods.