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Ambient office = 106 nanosieverts per hour

 

Ambient outside = 79 nanosieverts per hour

 

Soil exposed to rain water = 79 nanosieverts per hour

 

Red seedless grapes from Top Foods = 91 nanosieverts per hour

 

Tap water = 129 nanosieverts per hour

 

Filtered water =109 nanosieverts per hour