Ambient office = 96 nanosieverts per hour

 

Ambient outside = 55 nanosieverts per hour

 

Soil exposed to rain water = 57 nanosieverts per hour

 

Red seedless grapes from Top Foods = 70 nanosieverts per hour

 

Tap water = 83 nanosieverts per hour

 

Filtered water = 78 nanosieverts per hour