Geiger Readings for May 12, 2015

Ambient office = 100 nanosieverts per hour
 
Ambient outside = 122  nanosieverts per hour
 
Soil exposed to rain water = 107 nanosieverts per hour
 
Vine ripened tomato from Central Market = 76 nanosieverts per hour
 
Tap water = 74 nanosieverts per hour
 
Filtered water = 66 nanosieverts per hour