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Strontium-90 levels spike alarmingly at Fukushima No. 1 plant

Feb 22, 2015 

The Nuclear Regulation Authority said Sunday that an alarm went off at the Fukushima No. 1 nuclear plant signaling high radioactivity levels in drainage ditches.

According to the NRA and plant operator Tokyo Electric Power Co., the first alarm sounded at around 10 a.m., and another alarm 10 minutes later indicated much higher levels. Officials said contaminated water may have been discharged into the ditches.

The levels of beta ray-emitting substances, such as strontium-90, measured 5,050 to 7,230 becquerels per liter of water between 10:20 a.m. and 10:50 a.m. Tepco requires radioactivity levels of groundwater at the plant discharged into the sea to remain below 5 becquerels.

Since the drainage ditches are connected to the port of the No. 1 plant, the NRA has instructed Tepco to shut the gates there, officials said.

Tepco confirmed that no leaks from tanks containing radioactive water were found, but said it was investing further.

Source: Japan Times

http://www.japantimes.co.jp/news/2015/02/22/national/strontium-90-levels-spike-alarmingly-at-fukushima-no-1-plant/#.VOoTGy4bKKG

February 22, 2015 - Posted by | Japan |

2 Comments »

  1. […] levels of beta ray-emitting substances, such as strontium-90, measured 5,050 to 7,230 becquerels per liter of water between 10:20 a.m. and 10:50 a.m. Tepco requires radioactivity levels of groundwater at the plant […]

    Pingback by Fukushima World’s Radiation Nightmare | March 10, 2015 | Reply

  2. […] levels of beta ray-emitting substances, such as strontium-90, measured 5,050 to 7,230 becquerels per liter of water between 10:20 a.m. and 10:50 a.m. Tepco requires radioactivity levels of groundwater at the plant […]

    Pingback by Fukushima: The World’s Radiation Nightmare | wchildblog | May 22, 2015 | Reply


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