Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Total beta radioactivity in the air and milk concentrations of 89Sr and 90Sr in Bilbao, Spain
AbstractRadioactive contamination increases with the development of human activities. This contamination reaches people by inhalation or by food consumption. The interest and concern about health risks associated with radioactivity has increased since the accidents at the Three Mile Island nuclear power station in Harrisburg, USA, in 1979 and at Chernobyl, USSR, in 1986. The aim of this article is to determine total beta-radioactivity levels in the air and also milk concentrations of the isotopes 89Sr and 90Sr in Bilbao, Spain, in order to establish reference levels to future epidemiologic studies. Moreover, this could permit an earlier reaction against accidents similar to those referred. In our study, we have used a Geiger-Müller Counter for both air and milk. Milk samples require a previous treatment which consists of coagulation with 24% trichloroacetic acid (TCA), purification by ion exchange chromatography, and precipitation with ammonium carbonate. Low levels were found in 1989, both in air and milk. They were all lower than registered in 1988 and also lower than EEC recommended limits. Milk concentrations of 89Sr and 90Sr were much higher than the total beta radioactivity in the air collected during the same days.
Total beta radioactivity in the air and milk concentrations of 89Sr and 90Sr in Bilbao, Spain
AbstractRadioactive contamination increases with the development of human activities. This contamination reaches people by inhalation or by food consumption. The interest and concern about health risks associated with radioactivity has increased since the accidents at the Three Mile Island nuclear power station in Harrisburg, USA, in 1979 and at Chernobyl, USSR, in 1986. The aim of this article is to determine total beta-radioactivity levels in the air and also milk concentrations of the isotopes 89Sr and 90Sr in Bilbao, Spain, in order to establish reference levels to future epidemiologic studies. Moreover, this could permit an earlier reaction against accidents similar to those referred. In our study, we have used a Geiger-Müller Counter for both air and milk. Milk samples require a previous treatment which consists of coagulation with 24% trichloroacetic acid (TCA), purification by ion exchange chromatography, and precipitation with ammonium carbonate. Low levels were found in 1989, both in air and milk. They were all lower than registered in 1988 and also lower than EEC recommended limits. Milk concentrations of 89Sr and 90Sr were much higher than the total beta radioactivity in the air collected during the same days.
Total beta radioactivity in the air and milk concentrations of 89Sr and 90Sr in Bilbao, Spain
Molinero, M.E. (Autor:in) / Ruiz, V. (Autor:in) / Del Valle, A. (Autor:in)
Environmental International ; 17 ; 487-491
25.12.1990
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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