Geiger Readings for September 18, 2013
Ambient office = .130 microsieverts per hour
Ambient outside = .092 microsieverts per hour
Soil exposed to rain water = .101 microsieverts per hour
Vine ripened tomato from Costco = .093 microsieverts per hour
Tap water = .060 microsieverts per hour
Filtered water = .045 microsieverts per hour