Geiger Readings for January 12, 2014

Ambient office = 135  nanosieverts per hour
 
Ambient outside = 116  nanosieverts per hour
 
Soil exposed to rain water = 112 nanosieverts per hour
 
Romaine lettuce from Central Market = 106  nanosieverts per hour
 
Tap water = 79  nanosieverts per hour
 
Filtered water = 72 nanosieverts per hour