My result was...

(Bq m-3, annual average radon concentration)


below the Target Level of 100 bq m-3

below the Action Level of 200 Bq m-3
(100 - 200 Bq m-3)

below 500 Bq m-3
(200 - 500 Bq m-3)

above 500 Bq m-3

Start again