Geiger Readings for Mar 25, 2015

Ambient office = 61 nanosieverts per hour
 
Ambient outside = 97 nanosieverts per hour
 
Soil exposed to rain water = 103 nanosieverts per hour
 
Iceberg lettuce from Central Market = 97 nanosieverts per hour
 
Tap water = 136 nanosieverts per hour
 
Filtered water = 130 nanosieverts per hour