Sonderen JF van ,
Drost RMS ,
Ockhuizen A ,
Glastra P ,
Koolwijk AC
29 p
in Dutch
1990
Toon Nederlands
English Abstract This report summarizes the results of measurements of
radionuclides deposited at Bilthoven in the Netherlands in 1989. The total
depositions of H-3 (1560+-130 Bq/m2), Be-7 (740+-40 Bq/m2), Pb-210 (94+-7
Bq/m2) and Po-210 (24+-4 Bq/m2) were not substantially changed compared to
those in previous years. The same applies to the deposited gross alpha-
(43+-1 Bq/m2), gross beta- (89+- 3 Bq/m2), gross gamma-activity (128 +- 5
Bq/m2). The depositions of Cs-134 and Cs-137 were <2,6 Bq/m2 and <3 Bq/m2
respectively. In 1988 these depositions were <5 Bq/m2 and <6 Bq/m2. The
weekly deposition of gross gamma-activity, H-3 and Be-7 were correlated with
the amount of precipitation. In 1989 the consequences of "Chernobyl" were
no longer perceptible in the deposition in the
Netherlands.
