strontium detected 62 km from Fukushima No. 1 plant,Water treatment trial test at plant

Submitted by Anonymous on Thu, 2011-06-09 11:58

So this water treatment is being tested to see if it works on low level contamination(hasn't this technology been tested) .don't we know it works on low contaminationt isnt the highly contaminated water that is the question if it can be scrubbed. !as for the strontium any detections on west coast or is anyone testing for it.

http://search.japantimes.co.jp/cgi-bin/nn20110610a2.html

During the trial run, low-level radioactive water that has been kept in a tank at the complex will be sent into the new installation to see if it can remove radioactive cesium and other contaminants from the water, lower its radiation levels and desalinate it.

Tepco wants to process roughly 250,000 tons of highly radioactive water at the new facility by the end of next March.

‹ apologies for a stupid question... Wind direction ›

FDA DIL for Strontium

Submitted by Anonymous (not verified) on Thu, 2011-06-09 16:05.

I found two articles regarding strontium. One is for Sr-89 and one is for Sr-90.

I've given the FDA DIL for Sr-90 below. For Sr-90, you'd have to eat pure soil in Namie Town to eventually exceed the DIL. Don't know about inhalation.

The FDA does not list a DIL for Sr-89, which has a 50.57 day half life vs. a 28.9 years for Sr-90. However, the deposition of Sr-89 that is stated in the Japan Times article is extremely high in some locations relative to the FDA DIL for Sr-90 (if that DIL applies).

http://www.fda.gov/downloads/NewsEvents/PublicHealthFocus/UCM251056.pdf

Strontium 90

All Components of the Diet: 160 Bq/kg or 4300 pCi/kg
Milk: 4400 pCi/L

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Japan Times Article
http://search.japantimes.co.jp/cgi-bin/nn20110610a2.html

"According to the Education, Culture, Sports, Science and Technology Ministry, 54 becquerels of strontium-89 per kg were detected in soil collected in the city of Fukushima on April 27.

The highest amount, 1,500 becquerels of strontium per kg, was detected in soil collected May 6 in the town of Namie, 24 km northwest of the nuclear plant.

The ministry also detected 1,000 becquerels of strontium per kg in the village of Iitate, 220 becquerels in the town of Kawamata and 30 becquerels in the town of Hirono."

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NHK Article:
http://www3.nhk.or.jp/daily/english/09_04.html

"Soil samples from around Fukushima Prefecture have revealed concentrations of radioactive strontium.

Japan's science ministry conducted a survey for radioactive substances at 11 locations in 10 municipalities from late March to mid-May.

It says strontium-90 was detected in all 11 locations.

In Namie Town, the reading stood at 250 becquerels per kilogram of soil, while in Iitate Village the reading was 120 becquerels per kilogram. The readings in the other locations were between 2 and 18 becquerels"