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Publicatie Laka-bibliotheek:
Fallout situation in Finland from April 26 to May 4 1986 (1986)

Auteur	Strälsäkerhetscentralen
Datum	1986
Classificatie	2.34.8.30/24 (TSJERNOBYL - GEVOLGEN REST EUROPA - ALGEMEEN)
Voorkant

PREFACE

As known, a reactor unit of type RBMK 1 000 ignited on April 26, 1986, 
approximately at 5 a.m. Finnish time in the reactor site in Chernobyl, some 
130 kilometres from the city of Kiev in the USSR.

The Soviet authorities gave an official announcement saying that the reactor fire 
had ended on May 5 and the reaction had stopped.

This report presents results from external radiation measurements and analysis 
of environmental samples in Finland from April 26 to May 4, 1986.

Some additional calibrations will still be made, which will probably cause some 
changes to the results later. Also some checking of early warning monitors will 
most probably lead to some corrections in the results.

We believe, however, that the overall situation of radiation dose rate levels and the 
extent of environmental contamination is relatively well known for the purpose of 
protecting the public from external radiation and from radiation through the food 
chains.

The high fallout level will during this growing season cause several abnormal high 
contamination levels in different food stuffs. At this moment, at the beginning of 
May, the cows are still inside and the outdoor growing season is not yet fully started.

The elevated iodine-131 level in air outside and also inside of our laboratory has 
caused some problems in the gammaspectrometric iodine-131 measurements.

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