Geiger Counter Readings in Seattle, WA on August 10, 2012

Ambient office = .123 microsieverts per hour

Tap water = .106 micosieverts per hour

Filtered water = .092 micosieverts per hour

Hass avacado from local produce stand = .118 micosieverts per hour

Ambient outside = .113 micosieverts per hour

Soil exposed to rain = .087 micosieverts per hour