Ambient office  = 104 nanosieverts per hour

Ambient outside = 193 nanosieverts per hour

Soil exposed to rain water = 92 nanosieverts per hour

Yam from Central Market = 88 nanosieverts per hour

Tap water = 95 nanosieverts per hour

Filter water = 84 nanosieverts per hour

Dover sole – Caught in USA = 89 nanosieverts per hour