Ambient office = 55 nanosieverts per hour

 

Ambient outside = 60 nanosieverts per hour

 

Soil exposed to rain water = 92 nanosieverts per hour

 

Vine ripened tomato from Top Foods = 74 nanosieverts per hour

 

Tap water = 73 nanosieverts per hour

 

Filtered water = 63 nanosieverts per hour