Geiger Readings for Feb 05, 2015

Ambient office = 63 nanosieverts per hour
 
Ambient outside = 91 nanosieverts per hour
 
Soil exposed to rain water = 84 nanosieverts per hour
 
Redleaf lettuce from Central Market = 91 nanosieverts per hour
 
Tap water = 104 nanosieverts per hour
 
Filtered water = 96 nanosieverts per hour