Ambient office  = 104 nanosieverts per hour

Ambient outside = 106 nanosieverts per hour

Soil exposed to rain water = 108 nanosieverts per hour

Watermellon from Central Market = 46 nanosieverts per hour

Tap water = 99 nanosieverts per hour

Filtered water = 83 nanosieverts per hour

Dover sole – Caught in USA = 82 nanosieverts per hour