Geiger Readings for February 11, 2014

Ambient office = 56 nanosieverts per hour
 
Ambient outside = 69  nanosieverts per hour
 
Soil exposed to rain water = 73 nanosieverts per hour
 
Iceberg lettuce from Central Market = 91  nanosieverts per hour
 
Tap water = 119  nanosieverts per hour
 
Filtered water = 101 nanosieverts per hour