Geiger Readings for January 09, 2014

Ambient office = 67  nanosieverts per hour
 
Ambient outside = 101  nanosieverts per hour
 
Soil exposed to rain water = 67 nanosieverts per hour
 
Red seedless grapes from Costco = 91  nanosieverts per hour
 
Tap water = 87  nanosieverts per hour
 
Filtered water = 79 nanosieverts per hour