Ambient office = 98 nanosieverts per hour

 

Ambient outside = 109 nanosieverts per hour

 

Soil exposed to rain water = 103 nanosieverts per hour

 

Romaine lettuce from Top Foods = 131 nanosieverts per hour

 

Tap water = 114 nanosieverts per hour

 

Filtered water = 95 nanosieverts per hour