Geiger Readings for Jan 10, 2015

Ambient office = 83 nanosieverts per hour
 
Ambient outside = 97 nanosieverts per hour
 
Soil exposed to rain water = 97 nanosieverts per hour
 
Romaine lettuce from Central Market = 70 nanosieverts per hour
 
Tap water = 114 nanosieverts per hour
 
Filtered water = 104 nanosieverts per hour