Geiger Readings for July 18, 2016

Ambient office = 90 nanosieverts per hour
 
Ambient outside = 65 nanosieverts per hour
 
Soil exposed to rain water = 53 nanosieverts per hour
 
Iceberg lettuce from Central Market = 109 nanosieverts per hour
 
Tap water = 97 nanosieverts per hour
 
Filtered water = 88 nanosieverts per hour