Geiger Readings for Feb 12, 2016

Ambient office = 105 nanosieverts per hour
 
Ambient outside = 140 nanosieverts per hour
 
Soil exposed to rain water = 132 nanosieverts per hour
 
Redleaf lettuce from Central Market = 140 nanosieverts per hour
 
Tap water = 115 nanosieverts per hour
 
Filter water = 108 nanosieverts per hour