Geiger Readings for Jan 20, 2016

Ambient office = 88 nanosieverts per hour
 
Ambient outside = 113 nanosieverts per hour
 
Soil exposed to rain water = 119 nanosieverts per hour
 
Iceberg lettuce from Central Market = 121 nanosieverts per hour
 
Tap water = 110 nanosieverts per hour
 
Filtered water = 98 nanosieverts per hour