Ambient office = 74 nanosieverts per hour

 

Ambient outside = 87 nanosieverts per hour

 

Soil exposed to rain water = 90 nanosieverts per hour

 

Vine ripened tomato from Top Foods = 67 nanosieverts per hour

 

Tap water = 118 nanosieverts per hour

 

Filtered water =123 nanosieverts per hour