Ambient office = 120 nanosieverts per hour

 

Ambient outside = 58 nanosieverts per hour

 

Soil exposed to rain water = 73 nanosieverts per hour

 

Iceberg lettuce from Top Foods = 93 nanosieverts per hour

 

Tap water = 76 nanosieverts per hour

 

Filtered water = 69 nanosieverts per hour