Aquatic Sciences

, Volume 54, Issue 3–4, pp 238–254 | Cite as

The Fate of Chernobyl137Cs in Lake Lugano

  • J. Dominik
  • D. Span
Physical and chemical aspects of Lake Lugano

Abstract

A rapid removal of Chernobyl137Cs from a number of large lakes has been previously reported. Our measurements of137Cs in water, sediments and pore water in the mono- and meromictic basins of Lake Lugano (Lago di Lugano) reveal generally slower half-removal times of 1.2 and 6.7 yrs, respectively. In the seasonally anoxic southern basin, this is most probably related to an intensive recycling of137Cs between water and sediments. In the permanently stratified northern basin the removal rate is much slower due to an important inventory build up in the deep anoxic part of the basin.

Key words

Chernobyl Cs-137 sediment pore water redox processes Lake Lugano (Lago di Lugano) 

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Copyright information

© Birkhäuser Verlag 1992

Authors and Affiliations

  • J. Dominik
    • 1
  • D. Span
    • 1
  1. 1.Institut F.-A. ForelUniversité de GenèveVersoixFrance

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