Ambient office = 100 nanosieverts per hour

 

Ambient outside = 117 nanosieverts per hour

 

Soil exposed to rain water = 130 nanosieverts per hour

 

Vine ripened tomato from Central Market = 83 nanosieverts per hour

 

Tap water = 90 nanosieverts per hour

 

Filtered water = 79 nanosieverts per hour