Geiger Readings for Oct 11, 2015

Ambient office = 146 nanosieverts per hour
 
Ambient outside = 114 nanosieverts per hour
 
Soil exposed to rain water = 103 nanosieverts per hour
 
Iceberg lettuce from Central Market = 98 nanosieverts per hour
 
Tap water = 99 nanosieverts per hour
 
Filtered water = 94 nanosieverts per hour