Geiger Readings for May 12, 2016

Ambient office = 66 nanosieverts per hour
 
Ambient outside = 56 nanosieverts per hour
 
Soil exposed to rain water = 72 nanosieverts per hour
 
Redleaf lettuce from Central Market = 67 nanosieverts per hour
 
Tap water = 91 nanosieverts per hour
 
Filtered water = 80 nanosieverts per hour