Geiger Readings for May 25, 2015

Ambient office = 74 nanosieverts per hour
 
Ambient outside = 81  nanosieverts per hour
 
Soil exposed to rain water = 73 nanosieverts per hour
 
Vine ripened tomato from Central Market = 153  nanosieverts per hour
 
Tap water = 197 nanosieverts per hour
 
Filtered water = 93 nanosieverts per hour