Ambient office  = 113 nanosieverts per hour

Ambient outside = 100 nanosieverts per hour

Soil exposed to rain water = 103 nanosieverts per hour

Small new potato from Central Market = 70 nanosieverts per hour

Tap water = 106 nanosieverts per hour

Filtered water = 91 nanosieverts per hour

Dover sole – Caught in USA = 93 nanosieverts per hour