Geiger Counter Readings in Seattle, WA on June 1, 2012

Ambient office = .125 microsieverts per hour

Tap water = .082 micosieverts per hour

Filtered water = .079 micosieverts per hour

Beefsteak tomato from supermarket = .066 micosieverts per hour

Ambient outside = .107 micosieverts per hour

Soil = .096 micosieverts per hour