Ambient office = 85 nanosieverts per hour

 

Ambient outside = 86 nanosieverts per hour

 

Soil exposed to rain water = 79 nanosieverts per hour

 

Redleaf lettuce from Top Foods = 101 nanosieverts per hour

 

Tap water = 114 nanosieverts per hour

 

Filtered water = 98 nanosieverts per hour