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		antman on March 28, 2013 \| parent \| context \| favorite \| on: Google Maps a Japanese Nuclear Ghost Town This guys card is black is that good? https://maps.google.com/maps?q=Namie+town,+Fukushima+Prefect...

mey on March 28, 2013 [–]

http://en.wikipedia.org/wiki/Film_badge_dosimeter

If I am understanding that article correctly, it is used not as an alert but as a record of how much cumulative exposure a person has received while in a hazardous area.

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