Geiger Readings for Dec 18, 2015

Ambient office = 82 nanosieverts per hour
 
Ambient outside = 84 nanosieverts per hour
 
Soil exposed to rain water = 105 nanosieverts per hour
 
Yellow onion from Central Market = 119 nanosieverts per hour
 
Tap water = 130 nanosieverts per hour
 
Filtered water = 113 nanosieverts per hour