Geiger Readings for December 14, 2014

Ambient office = 75  nanosieverts per hour
 
Ambient outside = 128  nanosieverts per hour
 
Soil exposed to rain water = 87 nanosieverts per hour
 
Iceberg lettuce from Central Market = 66  nanosieverts per hour
 
Tap water = 110  nanosieverts per hour
 
Filtered water = 75 nanosieverts per hour