Geiger Readings for July 28, 2013
Latitude 47.704656 Longitude -122.318745
Ambient office = .140 microsieverts per hour
Ambient outside = .126 microsieverts per hour
Soil exposed to rain water = .133 microsieverts per hour
Mango from local produce store = .105 microsieverts per hour
Tap water = .105 microsieverts per hour
Filtered water = .100 microsieverts per hour