Onderzoek naar de radioactiviteit van depositie. Resultaten over 1988
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Type
Report
Language
nl
Date
1990-04-30
Research Projects
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Journal Issue
Title
Onderzoek naar de radioactiviteit van depositie.
Resultaten over 1988
Translated Title
Monitoring of radioactivity in deposition. Results
for 1988.
Published in
Abstract
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This report summarizes the results of measurements of radionuclides deposited at Bilthoven in the Netherlands in 1988. The total depositions of 3H (1700+-40 Bq/m2), 7Be (1200+-50 Bq/m2), 210Pb (110+- Bq/m2) and 210Po (25+-1 Bq/m2) were not substantially changed compared to those in previous years. The same applies to the deposited gross alpha- (36+-2 Bq/m2), gross beta- (103+-3 Bq/m2) and gross gamma-activity (185+-6 Bq/m2). The depositions of 134Cs and 137Cs were <5 Bq/m2 and <6 Bq/m2 respectively. In 1987 these depositions were <5 Bq/m2 and 12 Bq/m2. The weekly deposition of gross gamma-activity, 3H and 7Be were correlated with the amount of precipitation. In 1988 the consequences of "Chernobyl" were no longer perceptible in the deposition in the Netherlands.
This report summarizes the results of measurements of radionuclides deposited at Bilthoven in the Netherlands in 1988. The total depositions of 3H (1700+-40 Bq/m2), 7Be (1200+-50 Bq/m2), 210Pb (110+- Bq/m2) and 210Po (25+-1 Bq/m2) were not substantially changed compared to those in previous years. The same applies to the deposited gross alpha- (36+-2 Bq/m2), gross beta- (103+-3 Bq/m2) and gross gamma-activity (185+-6 Bq/m2). The depositions of 134Cs and 137Cs were <5 Bq/m2 and <6 Bq/m2 respectively. In 1987 these depositions were <5 Bq/m2 and 12 Bq/m2. The weekly deposition of gross gamma-activity, 3H and 7Be were correlated with the amount of precipitation. In 1988 the consequences of "Chernobyl" were no longer perceptible in the deposition in the Netherlands.
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HIMH/TK