Geiger Counter Readings in Seattle, WA on July 3, 2012

Ambient office = .099 microsieverts per hour

Tap water = .097 micosieverts per hour

Filtered water = .093 micosieverts per hour

Kraft Grated Pamesan = .104 micosieverts per hour

Ambient outside = .074 micosieverts per hour

Soil exposed to rain = .107 micosieverts per hour