Geiger Readings for May 20, 2015

Ambient office = 66 nanosieverts per hour
 
Ambient outside = 59  nanosieverts per hour
 
Soil exposed to rain water = 56 nanosieverts per hour
 
Honey crisp apple from Central Market = 153  nanosieverts per hour
 
Tap water = 82 nanosieverts per hour
 
Filtered water = 76 nanosieverts per hour