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Jun5-11, 08:10 AM
The charts show the level of dilution for a 1 bq/hr source term and suggests that the source level was diluted by about 10**12th by the time it reached Tokyo. Perhaps that is enough information for someone who was monitoring the actual levels reached in Tokyo to work back to derive the corresponding emission level at the source.
Fascinating... it never occured to me to calculate backwards in order to get the source term. Thanks for that hint.
Does somebody know where to find airborne activity measurements for Tokio...?
thx @ Borek for moving :)