Geiger Counter Readings in Seattle, WA on July 5, 2012

Ambient office = .073 microsieverts per hour

Tap water = .146 micosieverts per hour

Filtered water = .132 micosieverts per hour

Asparagus from supermarket = .109 micosieverts per hour

Ambient outside = .081 micosieverts per hour

Soil exposed to rain = .099 micosieverts per hour