Geiger Readings for July 28, 2016

Ambient office = 108 nanosieverts per hour
 
Ambient outside = 72 nanosieverts per hour
 
Soil exposed to rain water = 70 nanosieverts per hour
 
Romaine lettuce from Central Market = 106 nanosieverts per hour
 
Tap water = 62 nanosieverts per hour
 
Filtered water = 56 nanosieverts per hour