Ambient office = 103 nanosieverts per hour

 

Ambient outside = 128 nanosieverts per hour

 

Soil exposed to rain water = 133 nanosieverts per hour

 

Red seedless grapes from Top Foods = 76 nanosieverts per hour

 

Tap water = 72 nanosieverts per hour

 

Filtered water = 61 nanosieverts per hour