Ambient office  =  65 nanosieverts per hour

Ambient outside = 141 nanosieverts per hour

Soil exposed to rain water = 140 nanosieverts per hour

Carrot from Central Market = 84 nanosieverts per hour

Tap water = 81 nanosieverts per hour

Filtered water = 60 nanosieverts per hour

Dover sole – Caught in USA = 108 nanosieverts per hour