Geiger Readings for May 28, 2016

Ambient office = 61 nanosieverts per hour
 
Ambient outside = 86 nanosieverts per hour
 
Soil exposed to rain water = 80 nanosieverts per hour
 
Redleaf lettuce from Central Market = 156 nanosieverts per hour
 
Tap water = 100 nanosieverts per hour
 
Filtered water = 87 nanosieverts per hour