Radionuclides in ground level air in Sweden Year 2006

Authors:

  • Catharina Söderström
  • Stefan Ban
  • Peter Jansson
  • Karin Lindh
  • Neda Tooloutalaie

Publish date: 2007-04-19

Report number: FOI-R--2260--SE

Pages: 13

Written in: English

Keywords:

  • Airborne radionuclides
  • deposition
  • 7Be
  • 137Cs
  • 131I

Abstract

Filtering of ground level air is performed continuously at six different locations in Sweden: Kiruna, Umeå, Gävle, Kista, Visby and Ljungbyhed. The filters are pressed into weekly samples and the contents of different radionuclides are measured by gamma spectroscopy. Precipitation is also collected at four of the stations: Kiruna, Gävle, Kista and Ljungbyhed, the samples are ashed and the contents of radionuclides are measured. The levels of Be-7 and Cs-137 in air and precipitation are presented for the different stations. Other antropogenic radionuclides detected, if any, are also presented.