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Huge spike in groundwater radiation under Fukushima nuclear reactor No 1

strontium 90Strontium readings spike 6,500-fold in one day  Water radiation soars at Fukushima No. 1 Japan Times JIJI, AFP-JIJI  18 Oct 13 FUKUSHIMA Radiation levels in groundwater under Tokyo Electric Power Co.’s Fukushima No. 1 nuclear plant are soaring, Tepco said Friday after taking samples from an observation well.

Tepco said 400,000 becquerels per liter of beta ray-emitting substances such as strontium were detected in water sampled Thursday from the well located some 15 meters from a storage tank that leaked about 300 tons of highly radioactive water in August.

The level of becquerels, a record high for water in that well, was up 6,500-fold from the 61 becquerels found Wednesday.

Tepco was planning to pump groundwater up from different wells about 100 meters from the leaky tank for release into the Pacific before the water flows into the damaged reactor buildings and becomes heavily contaminated with radioactive materials.

But that plan appears in jeopardy because the sharp increase in the levels of radioactive materials in the observation well suggest the radioactive groundwater is spreading.

By law, water containing beta particle-emitting substances exceeding certain levels cannot be released into the sea. The upper limit is set at 30 becquerels per liter for strontium-90 and 60 becquerels for cesium-134.

Tepco also said water collected Thursday from a drainage ditch near the leaky tank contained 34,000 becquerels of beta particle-emitting substances per liter, compared with 2,300 becquerels the day before……Officials said Thursday they will solicit proposals from both domestic and overseas nuclear experts and firms on how best to scrap the ruined reactors at Fukushima No. 1…….http://www.japantimes.co.jp/news/2013/10/18/national/water-radiation-soars-at-fukushima-no-1/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+ja

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October 18, 2013 - Posted by | Fukushima 2013, Japan, water

1 Comment »

  1. […] Huge spike in groundwater radiation under Fukushima nuclear reactor No 1 (nuclear-news.net) […]

    Pingback by Strontium readings spike 6,500-fold after typhoon at Fukushima | Vernon Radiation Safety | October 20, 2013 | Reply


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