Geiger Readings for Feb 07, 2015

Ambient office = 48 nanosieverts per hour
 
Ambient outside = 71 nanosieverts per hour
 
Soil exposed to rain water = 108 nanosieverts per hour
 
Iceberg lettuce from Central Market = 112 nanosieverts per hour
 
Tap water = 100 nanosieverts per hour
 
Filtered water = 83 nanosieverts per hour