A new map has been released which shows the areas of Derbyshire with the highest levels of the radioactive gas radon. Radon is colourless and odourless and is formed when uranium in soil and rock ...

Map of Derbyshire and Nottinghamshire (Image: Derby Telegraph). Tier Three is represented in red and includes Nottingham city, Gedling, Broxtowe and Rushcliffe, In Nottinghamshire.