1. Dispersion modeling as a dioxin exposure indicator in the vicinity of a municipal solid waste incinerator: a validation study
- Author
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Jean-François Viel, Frédéric Mauny, N. Floret, Jean-Yves Cahn, Eric Lucot, Pierre-Marie Badot, Pierre-Michel Dudermel, Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Organic Traces Research Laboratory, Institut Pasteur de Lille, Réseau International des Instituts Pasteur ( RIIP ) -Réseau International des Instituts Pasteur ( RIIP ), Hematology, Université Joseph Fourier - Grenoble 1 ( UJF ) -CHU Grenoble, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble, This research was supported by the French Ministry of Health (Grant # 2001-1485)., and We are grateful to Robert Schwint (former mayor of Besançon) for transmitting the dioxin diffusion model, to Tamara Lindner for assistance with manuscript preparation, and to Amandine Buzzeto for the field sampling.
- Subjects
MESH : Refuse Disposal ,Soil test ,Population ,Air pollution ,Incineration ,010501 environmental sciences ,medicine.disease_cause ,Dioxins ,01 natural sciences ,Municipal solid waste incinerator ,MESH : Soil Pollutants ,03 medical and health sciences ,MESH : Dioxins ,MESH: Incineration ,medicine ,Cation-exchange capacity ,Environmental Chemistry ,PCDD/F ,Soil Pollutants ,education ,MESH: Models, Theoretical ,MESH : Incineration ,0105 earth and related environmental sciences ,Total organic carbon ,0303 health sciences ,education.field_of_study ,Persistent organic pollutant ,MESH: Soil Pollutants ,MESH: Dioxins ,MESH : Models, Theoretical ,Environmental engineering ,030311 toxicology ,[ SDV.SPEE ] Life Sciences [q-bio]/Santé publique et épidémiologie ,General Chemistry ,Atmospheric dispersion modeling ,Models, Theoretical ,MESH: Refuse Disposal ,Refuse Disposal ,13. Climate action ,Environmental chemistry ,Environmental science ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie - Abstract
International audience; Whether low environmental doses of dioxin affect the general population is the matter of intense debate and controversy. In a previous study, we found a 2.3-fold risk for non-Hodgkin lymphoma associated with residence in areas classified as highly exposed to dioxin emitted from a municipal solid waste incinerator (MSWI) (Besançon, France). The main limitation lay within the use of a first-generation Gaussian-type dispersion model as a proxy for dioxin exposure, since its accuracy had not been assessed before. The aim of this study was to validate this geographic-based exposure through PCDD/F measurements from soil samples. PCDD/F concentration, pH, organic carbon concentration, cation exchange capacity, and geomorphology and ecology features were assessed for 75 sampling points. In simple terrain (i.e. northeast of the MSWI), a significant association was highlighted between modeled dioxin ground-level air concentrations and log-transformed measured dioxin soil concentrations with a strong gradient across exposure categories. Conversely, in a complex topography situation (i.e. southwest of the MSWI), the model overpredicted ground-level air concentrations, particularly in the high exposure zone. First-generation modeling provided a reliable proxy for dioxin exposure in simple terrain, reinforcing the results of our case-control study. However, a more advanced atmospheric diffusion model should have been used for refined assessment in complex terrain.
- Published
- 2006