Strontium 90 Readings From Citizen Collected Fukushima Samples
Some Fukushima contamination samples collected by citizens in Japan have been tested for strontium 90.
Marco Kaltofan from the Dept. of Civil and Environmental Engineering at Worcester Polytechnic Institute tested two existing samples, one being an air filter and the other a sample of black sand found near the evacuation zone. The results were posted to Safecast’s public email list.
“The detection limits are higher than I would like, at about 10 Bq/g. Even so, I got some good results for some of my existing samples. The sample of black sand from Namie had been reported last year at 1530 Bq/g of radiocesium. The 90Sr level for this sample was 348 Bq/g. An air filter sample taken in June 2011 in Fukushima City was 2792 Bq/filter radiocesium, and 668 Bq/filter 90Sr. These were quantified against a 2700 Bq 90Sr source from Oak Ridge, TN, USA. For these two samples, 90Sr is about 23 % of the level of 134Cs and 137Cs combined.”
* the content in quotes is not included in any copyright restriction
This article would not be possible without the extensive efforts of the SimplyInfo research team
Join the conversation at chat.simplyinfo.org
© 2011-2023 SimplyInfo.org, Fukuleaks.org All Rights Reserved Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than http://www.simplyinfo.org (or http://www.fukuleaks.org) it may be plagiarized, please let us know. If you wish to reproduce any of our content in full or in more than a phrase or quote, please contact us first to obtain permission.