Geiger Readings for February 17, 2013

Ambient office = 81 nanosieverts per hour
 
Ambient outside = 85 nanosieverts per hour
 
Soil exposed to rain water = 77 nanosieverts per hour
 
Asparagus from Top Foods = 87 nanosieverts per hour
 
Tap water = 88 nanosieverts per hour
 
Filtered water = 62 nanosieverts per hour