Ambient office  = 100 nanosieverts per hour

Ambient outside = 93 nanosieverts per hour

Soil exposed to rain water = 93 nanosieverts per hour

Lemon from Central Market = 156 nanosieverts per hour

Tap water = 108 nanosieverts per hour

Filtered water = 89 nanosieverts per hour

Dover sole – Caught in USA = 117 nanosieverts per hour