Geiger Counter Readings in Seattle, WA on August 2, 2012

Ambient office = .116 microsieverts per hour

Tap water = .089 micosieverts per hour

Filtered water = .087 micosieverts per hour

orange from local produce stand = .125 micosieverts per hour

Ambient outside = .135 micosieverts per hour

Soil exposed to rain = .119 micosieverts per hour