Geiger Readings for Dec 22, 2017

Ambient office = 104 nanosieverts per hour
 
Ambient outside = 98 nanosieverts per hour
 
Soil exposed to rain water = 98 nanosieverts per hour
 
Crimini mushroom from Central Market = 141 nanosieverts per hour
 
Tap water = 85 nanosieverts per hour
 
Filter water = 77 nanosieverts per hour