Ambient office = 105 nanosieverts per hour

 

Ambient outside = 111 nanosieverts per hour

 

Soil exposed to rain water = 119 nanosieverts per hour

 

Iceberg lettuce from Top Foods = 60 nanosieverts per hour

 

Tap water = 121 nanosieverts per hour

 

Filtered water = 106 nanosieverts per hour