Top > Releases ･ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > Tritium Density Result of Water Quality Survey inside the Port of Fukushima Daiichi NPS (Follow-up Information 45)
This is follow-up information on the latest situation concerning the detection of high densities of Tritium and Strontium in the observation hole at the east side of the Unit 1-4 Turbine Buildings of Fukushima Daiichi NPS.
Since increase on the cesium-134 and cesium-137 densities was observed in groundwater obtained at the observation No.1 at the east side of Unit 1-4 Turbine Building on August 29, sampling and analysis were performed again today (on August 30).
As a result, values obtained this time were equivalent to the results of sampling which was performed on August 26 before the increase was found.
<Measurement results on the groundwater observation hole No.1 obtained on August 30>
· Cesium-134 : 0.98Bq/L
(Result obtained on August 26: below the detection limit value / the past highest value as of August 26: 3.2Bq/L)
· Cesium-137 : 2.1Bq/L
(Result obtained on August 26: 0.84Bq/L / the past highest value as of August 26: 4.3Bq/L)
For the past sampling results, please refer to the following page on our website:
http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/index-e.html
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