Geiger Readings for Apr 17, 2016

Ambient office = 110 nanosieverts per hour
 
Ambient outside = 119 nanosieverts per hour
 
Soil exposed to rain water = 117 nanosieverts per hour
 
Redleaf lettuce from Central Market = 67 nanosieverts per hour
 
Tap water = 60 nanosieverts per hour
 
Filtered water = 50 nanosieverts per hour