Geiger Counter Readings in Seattle, WA on March 28, 2013
Ambient office = .113 microsieverts per hour
Ambient outside = .117 microsieverts per hour
Soil exposed to rain = .093 microsieverts per hour
Mango from grocery store = .088 microsieverts per hour
Tap water = .102 microsieverts per hour
Filtered water = .083 microsieverts per hour
