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Geiger Counter Readings in Seattle, WA on April 4, 2013

Ambient office = .074 microsieverts per hour

Ambient outside = .093 microsieverts per hour

Soil exposed to rain = .098 microsieverts per hour

Marinated artichoke hearts from local grocery store .112 microsieverts per hour

Tap water = .116 microsieverts per hour

Filtered water = .108 microsieverts per hour