Geiger Readings for Jan 31, 2015

Ambient office = 91 nanosieverts per hour
 
Ambient outside = 103 nanosieverts per hour
 
Soil exposed to rain water = 99 nanosieverts per hour
 
Avocado  from Central Market = 58 nanosieverts per hour
 
Tap water = 74 nanosieverts per hour
 
Filtered water = 66 nanosieverts per hour