Ambient office = 65 nanosieverts per hour

 

Ambient outside = 48 nanosieverts per hour

 

Soil exposed to rain water = 64 nanosieverts per hour

 

Redleaf lettuce from Central Market = 62 nanosieverts per hour

 

Tap water = 80 nanosieverts per hour

 

Filtered water = 71 nanosieverts per hour