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Background Radiation at the Observatory
July - Dec 2011
Date |
cpm |
7/01/2011 |
38.3 |
7/08/2011 |
35.0 |
7/17/2011 |
35.7 |
7/23/2011 |
40.2 |
8/01/2011 |
34.3 |
8/05/2011 |
40.4 |
8/06/2011 |
36.4 |
8/29/2011 |
38.0 |
With the radiation concerns from Japan now low, we are transitioning to a weekly report
Readings are 10 minute averages of counts/minute (cpm), counts in the 30's are normal
120 cpm = 1uSv/Hr for Cs-137, 20,000 uSv/Hr is max safe yearly limit
See Radiation Dose Chart or See EPA Radiation Monitoring
