Ambient office = 95 nanosieverts per hour

 

Ambient outside = 85 nanosieverts per hour

 

Soil exposed to rain water = 93 nanosieverts per hour

 

Red seedless grapes from Top Foods = 99 nanosieverts per hour

 

Tap water = 80 nanosieverts per hour

 

Filtered water = 66 nanosieverts per hour