Geiger Counter Readings in Seattle, WA on August 13, 2012

Ambient office = .072 microsieverts per hour

Tap water = .096 micosieverts per hour

Filtered water = .092 micosieverts per hour

Garlic bulbs from local produce stand = .116 micosieverts per hour

Ambient outside = .080 micosieverts per hour

Soil exposed to rain = .086 micosieverts per hour