Portland-area had highest Iodine-131 deposition in US at 5,100 Bq/m² by April 5 -Gov’t Study

Published: February 23rd, 2012 at 8:48 am ET
By
Email Article Email Article
19 comments


Title: Fission Products in National Atmospheric Deposition Program—Wet Deposition Samples Prior to and Following the Fukushima Dai-Ichi Nuclear Power Plant Incident, March 8–April 5, 2011
Source: U.S. Department of the Interior, U.S. Geological Survey
Authors: Gregory A. Wetherbee, Timothy M. Debey, Mark A. Nilles, Christopher M.B. Lehmann, and David A. Gay
Date: Feb. 21, 2012
Emphasis Added

I-131 was quantified and adjusted for decay to the time of sample collection for five whole-water wet-deposition samples from California, Colorado, and Washington. The activities of the quantified I-131 ranged from 29.6 to 1,090 pCi/L, and calculated deposition values ranged from 211 to 5,100 Bq/m2. Several weeks transpired between sample collection and analysis of the I-131 in the water samples, which were prioritized for analysis from west (high priority) to east (low priority). Therefore, I-131 activities likely decayed in most of the samples before they could be measured.

WA98:

Published: February 23rd, 2012 at 8:48 am ET
By
Email Article Email Article
19 comments

Related Posts

  1. French map of cesium-137 deposition from Fukushima shows the US more contaminated than Western Japan (MAP & VIDEO) September 1, 2011
  2. Expert on US, Canada: We’ll see a statistically meaningful increase in cancer from Fukushima on west coast — After Japan, the most radioactive area is Cascade Mountains — Portland had cesium at 100 Bq/m² (VIDEO) December 22, 2011
  3. EPA finds DRINKING water with radioactive iodine-131 in Idaho and Washington — Samples collected last week April 4, 2011
  4. Phoenix milk sample exceeds EPA’s maximum contaminant level for radioactive iodine-131 April 9, 2011
  5. Idaho Paper: EPA’s “RadNet monitors were shipped out of Boise Tuesday” — Don’t expect an update any time soon June 23, 2011

19 comments to Portland-area had highest Iodine-131 deposition in US at 5,100 Bq/m² by April 5 -Gov’t Study