Geiger Readings for Jul 18, 2015

Ambient office = 139 nanosieverts per hour
 
Ambient outside = 99  nanosieverts per hour
 
Soil exposed to rain water = 108 nanosieverts per hour
 
Iceberg lettuce from Central Market = 109 nanosieverts per hour
 
Tap water = 84 nanosieverts per hour
 
Filtered water = 77 nanosieverts per hour 
 
Pacific Cod – Caught in USA = 96 nanosieverts per hour