April 4th, 2011 – All but one permanent monitoring stations around Fukushima Daiichi initially knocked out

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From: King, Mark f(,
Sent: Monday, April 04, 2011 12:47 PM
To: Garmon, David
Subject: Questions raised concerning early releases and what monitoring was actually available at the time – FYI
http:llwww.internal.nrc.gov/IRMILIBRARY/eiournallpdf/edledl 1 0404.pdf
from the above issue — FYI

Other experts raised questions last week about whether Japanese or U.S. officials had much reliable data at-all on early releases from the Fukushim aaccident.

The Institute for Science and International Security (ISIS), a respected and technically savvy nuclear watchdog group in Washington, said last week that all but one of the permanent monitoring stations around the Fukushima plant were initially knocked outby the earthquake, tsunami and loss of electricity at the site.’

The group said TEPCO was subsequently able to conduct limited monitoring with a car or cars equipped with measurement devices, but that inevitably there were huge gaps in monitoring coverage.

Further, ISIS said news reports in the early days of the accident wrongly suggested winds consistently blew releases from the plant out to sea. The group noted that subsequent offsite monitoring has found evidence of plumes of radiation overland both to thenorthwest and southwest of the plant.

“Many [early] releases went partially or completely undetected by on-site monitoring,” the group said in a report. “None of the releases from accidents were monitored as to their radioactive contents…..

See full story at link above

FYI —More to add to your list of questions that you should be developing.

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