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Ambient office = 91 nanosieverts per hour

 

Ambient outside = 55 nanosieverts per hour

 

Soil exposed to rain water = 58 nanosieverts per hour

 

Redleaf lettuce from Central Market = 85 nanosieverts per hour

 

Tap water = 79 nanosieverts per hour

 

Filtered water = 74 nanosieverts per hour