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- Title
The Input and Transmission of Fallout Radionuclides Through Redó, a High Mountain Lake in the Spanish Pyrenees.
- Authors
Appleby, P. G.; Koulikov, A. O.; Camarero, L.; Ventura, M.
- Abstract
Fallout radionuclides have increasing value as tracers of pathways for pollutant transport through catchment/lake systems, in addition to their more traditional role in dating sediment records. The objectives of this study, carried out within the EU MOLAR project, were to measure atmospheric fluxes of fallout 210Pb, 137Cs and 7Be at Redó, to establish mass balances for these radionuclides, and test and validate models of pollutant transport through the lake and its catchment. This was achieved by comparing measured fluxes and concentrations in the water column with theoretical estimates using simple compartment models. Several interesting points emerged. Differences between soil core and rainwater measurements suggest that Saharan dust may be an important source of fallout 210Pb. Fluxes through the water column had a clear seasonal trend reflecting winter ice cover. Significant concentrations of 137Cs are still present in the water column, due to continued inputs from the catchment and/or remobilisation from the bottom sediments.
- Subjects
SPAIN; RADIOISOTOPES; LAKES; BODIES of water; WATER; MOUNTAINS
- Publication
Water, Air & Soil Pollution: Focus, 2002, Vol 2, Issue 2, p19
- ISSN
1567-7230
- Publication type
Article
- DOI
10.1023/A:1020129919765