Radiation is one of those words that strikes fear in people - an invisible, silent killer. The success of the recent Chernobyl TV series will make many think about the horrifying nuclear meltdown from Russia in 1986, as opposed to something closer to home.
But the truth is we encounter radiation in our day-to-day lives, from the buildings around us to the food we eat, Devon Live reports.
In simple terms radiation is energy that can can pose a potentially deadly health risk by damaging our DNA, and comes from both natural and man-made sources.
And a map released by Public Health England shows just how badly some areas of the UK are affected by one type of radiation in particular.
Read more on mirror.co.uk