Mark Johnson describes precautions against radioactivity levels

Audio credit: Audio courtesy Doug Schneider, Alaska Sea Grant College Program
Filename: Amchitka-johnson-precaution.mp3
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As a precaution, each researcher on the study wore small radiation monitoring devices that signaled if radiation levels exceeded safe limits. ÃÛÌÒµ¼º½ Oceanographer Mark Johnson explains that Geiger counters also were used during the study to detect radiation.

Image credit: Photo by Volkan Tuncer, ÃÛÌÒµ¼º½.
Filename: VT-IMG_0018.JPG

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