Ambient office  =  73 nanosieverts per hour

Ambient outside = 159 nanosieverts per hour

Soil exposed to rain water = 159 nanosieverts per hour

Carrot from Central Market = 103 nanosieverts per hour

Tap water = 144 nanosieverts per hour

Filtered water = 132 nanosieverts per hour

Dover sole – Caught in USA = 115 nanosieverts per hour