Geiger Readings for May 19, 2014

Ambient office = 113 nanosieverts per hour
 
Ambient outside = 99 nanosieverts per hour
 
Soil exposed to rain water = 103 nanosieverts per hour
 
Banana from Costco = 77 nanosieverts per hour
 
Tap water = 113 nanosieverts per hour
 
Filtered water = 105 nanosieverts per hour