Skip to Main content Skip to Navigation
Journal articles

Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides

Abstract : Radionuclide inventories were measured in soils from different French mountainous areas: Chaîne des Puys (Massif Central), Eastern Corsica, Jura, Montagne Noire, Savoie, Vosges and Rhine Valley. 210Pb soil inventories were used to estimate long-term (>75 yr) deposition of submicron aerosols. Whereas 210Pb total deposition is explained partly by wet deposition, as demonstrated by increase of 210Pb inventory with annual rainfall; a part of 210Pb in the soils of higher altitude is caused by orographic depositions. Using measurements of radionuclides coming from nuclear aerial weapon tests (137Cs and Pu isotopes), we were able to estimate the origin of aerosols deposited in high-altitude sites and to confirm the importance of occult deposition and feeder-seeder mechanism. Using a simple mass balance model, we estimate that occult deposition and feeder-seeder mechanisms account to more than 50% of total deposition of 210Pb and associated submicron aerosols in French altitude sites.
Complete list of metadata

Cited literature [26 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00906413
Contributor : Open Archive Toulouse Archive Ouverte (oatao) Connect in order to contact the contributor
Submitted on : Tuesday, November 19, 2013 - 4:41:10 PM
Last modification on : Wednesday, September 22, 2021 - 3:34:04 PM
Long-term archiving on: : Thursday, February 20, 2014 - 9:35:40 AM

File

Leroux_10131.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Gaël Le Roux, Laurent Pourcelot, Olivier Masson, Céline Duffa, Françoise Vray, et al.. Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides. Atmospheric environment, Elsevier, 2008, Vol. 42, pp. 1517-1524. ⟨10.1016/j.atmosenv.2007.10.083⟩. ⟨hal-00906413⟩

Share

Metrics

Les métriques sont temporairement indisponibles