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IMPACT ON PEOPLE AND THE ENVIRONMENT
Release

UNPLANNED AIRBORNE RELEASE OF ACTIVITY CRITERIA FOR FACILITIES

 

To summarize the four levels of release criteria for facilities, five well known examples are provided:

radiologically equivalent to the order of more than tens of thousands of TBq of 131I

( > 50 000 TBq 131I)

Chernobyl
Fukushima

radiologically equivalent to the order of thousands to tens of thousands of TBq of 131I

( > 5 000 TBq 131I)

Kyshtym

radiologically equivalent to the order of hundreds to thousands of TBq of 131I

( > 500 TBq 131I)

Windscale

radiologically equivalent to the order of tens to hundreds of TBq of 131I

( > 50 TBq 131I)

Tokaimura
Kyshtym
Sept. 1957
Windscale
Oct. 1957
Chernobyl
Apr. 1986
Tokaimura
Sept. 1999
Fukushima
Mar. 2011