Ambient office  = 100 nanosieverts per hour

Ambient outside = 120 nanosieverts per hour

Soil exposed to rain water = 119 nanosieverts per hour

Heirloom tomato from Central Market = 125 nanosieverts per hour

Tap water = 104 nanosieverts per hour

Filtered water = 90 nanosieverts per hour

Dover sole – Caught in USA = 82 nanosieverts per hour