Tepco waited five months before releasing Fukushima data about radioactive strontium-90
http://www.rawstory.com/rs/2014/02/13/tepco-waited-five-months-before-releasing-radioactive-strontium-90-data/
Tepco waited five months before releasing Fukushima data about radioactive strontium-90
By Reuters
Thursday, February 13, 2014 12:51 EST
By Mari Saito
TOKYO (Reuters) The operator of Japans wrecked Fukushima nuclear plant knew about record high measurements of a dangerous isotope in groundwater at the plant for five months before telling the countrys nuclear watchdog, a regulatory official told Reuters.
Tokyo Electric Power Co (Tepco) said late on Wednesday it detected 5 million becquerels per liter of radioactive strontium-90 in a sample from a groundwater well about 25 meters from the ocean last September. That reading was more than five times the broader all-beta radiation reading taken at the same well two months earlier.
A Tepco spokesman said there was uncertainty about the reliability and accuracy of the September strontium reading, so the utility decided to re-examine the data.
Shinji Kinjo, head of a Nuclear Regulation Authority (NRA) taskforce on contaminated water issues at Fukushima, told Reuters he had not heard about the record high strontium reading until this month. We did not hear about this figure when they detected it last September, he said. We have been repeatedly pushing Tepco to release strontium data since November. It should not take them this long to release this information.