Cesium isotope-activity in the Weser ecosystem three years after the disaster at Chernobyl |
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| Authors: | E -M Rieger B Claus M Schirmer I Schmitz-Feuerhake |
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| Institution: | (1) Department of Biology (NW II), University of Bremen, PO-Box 330440, D-28334 Bremen, Germany;(2) Department of Physics (NW I), University of Bremen, PO-Box 330400, D-28334 Bremen, Germany |
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| Abstract: | In 1989, three years after the disaster at Chernobyl, the Cesium (Cs-137 and Cs-134) activity of water, sediments, suspended
solids, algae, and crustaceans were studied in five sections of the Weser estuary covering the nontidal and tidal freshwater
region down to the brackish area. The total water activities in the freshwater regions are similar, but there are differences
in the Cs distribution between the dissolved and the particulate phase depending on the concentration of suspended solids
and abiotic water parameters. The Cs activity derived from Chernobyl is only detectable in sediments and suspended solids.
Specific differences in Cs accumulation were found for crustaceans but not for algae. |
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| Keywords: | Cs-137 and Cs-134 Chernobyl Weser estuary |
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