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Ambient office = 107 nanosieverts per hour

 

Ambient outside = 62 nanosieverts per hour

 

Soil exposed to rain water = 77 nanosieverts per hour

 

Redleaf lettuce from Top Foods = 75 nanosieverts per hour

 

Tap water = 84 nanosieverts per hour

 

Filtered water = 65 nanosieverts per hour