Geiger Readings for Feb 25, 2015

Ambient office = 104 nanosieverts per hour
 
Ambient outside = 77 nanosieverts per hour
 
Soil exposed to rain water = 79 nanosieverts per hour
 
New red potato from Central Market = 113 nanosieverts per hour
 
Tap water = 114 nanosieverts per hour
 
Filtered water = 105 nanosieverts per hour