Ambient office = 116 nanosieverts per hour

 

Ambient outside = 85 nanosieverts per hour

 

Soil exposed to rain water = 106 nanosieverts per hour

 

Romaine lettuce from Top Foods = 91 nanosieverts per hour

 

Tap water = 104 nanosieverts per hour

 

Filtered water = 96 nanosieverts per hour