On 1/27/2015, Tepco announced they measured high density of Strontium-90 from groundwater in the seaside of Reactor 2.
It was 31,000,000 Bq/m3. The sampling point was the boring well, which is the closest to Reactor 2.
This is the highest density measured from this boring well, which is 10% more than the previous highest record.
The sampling date was last December. No Sr-90 data of January has been published.Iori Mochizuki
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