An interactive map shows the hotspots of a radioactive gas in London which is colourless, odourless and tasteless.
Radon is formed by radioactive decay from the small amounts of uranium that can be found naturally in all rocks and soils.
This means that it is everywhere.
Public Health England, however, states that “every building contains radon but the levels are usually low.
“The chances of a higher level depend on the type of ground.”
The radiation emitted from the elements can increase the risk of cancer and it appears that those living in rural areas are surrounded by more levels of this radioactive gas than more urban areas like London.
Public Health England has released a map showing where high levels are more likely.
The darker the colour, the greater the chance of a higher level.
The chance is less than one home in a hundred in the white areas and greater than one in three in the darkest areas.
A broad look at London shows low levels of radon, with hotspots in some particular areas.
This is how London looks according to the map:
For a look at specific locations, view the map here.