Geiger Readings for Feb 14, 2016

Ambient office = 140 nanosieverts per hour
 
Ambient outside = 105 nanosieverts per hour
 
Soil exposed to rain water = 90 nanosieverts per hour
 
Romaine lettuce from Central Market = 126 nanosieverts per hour
 
Tap water = 108 nanosieverts per hour
 
Filter water = 99 nanosieverts per hour