Ambient office  = 74 nanosieverts per hour

Ambient outside = 100 nanosieverts per hour

Soil exposed to rain water = 102 nanosieverts per hour

Broccoli from Central Market = 125 nanosieverts per hour

Tap water = 146 nanosieverts per hour

Filtered water = 131 nanosieverts per hour

Dover sole – Caught in USA = 76 nanosieverts per hour