Radon, radiation & stythe gas

Radon, radiation & stythe gas

Here you will find information about radon gas, radiation and stythe gas in Northumberland.

Radon

Radon is a naturally occurring radioactive gas. You cannot see, hear, feel or taste it. It comes from the decay of small amounts of uranium found naturally in all rocks and soils across the UK.

19% of Northumberland requires moderation measures to be included in new properties or certain extensions.

Useful radon links

Ionising radiation

Following the Chernobyl nuclear power accident in 1986, the council continues to measure background radiation in order to monitor changes and track those caused by nuclear incidents.

Using this method, we were able to identify that in 2011 there was no health risk to UK residents from the release of radioactive material in a Japanese nuclear power plant.

Stythe & mine gases

Stythe gas – also known as ‘black damp’ – can occur in former deep coal mines from the oxidation of the coal and timber left behind. It can cause a number of health issues and can be dangerous in places where oxygen composition is low, and where normal atmospheric air has been displaced.

The risk is greatest when there are sharp drops in atmospheric pressure, leading to former deep mines ‘breathing out’ the gas.

Stythe can come to the surface through old mine access points or through cracks in the underlying rock. It can collect in places like unventilated downstairs rooms and cellars.

Other mine gases such as ‘fire damp’ or methane can also be as dangerous as stythe and, in some concentrated cases, can be explosive.

Stythe & mine gases - how to act
If you think you’re being affected by mine gases, contact the Coal Authority’s 24-hour emergency call out service immediately on 01623 646 333.

The Coal Authority is a government body with a statutory responsibility to deal with surface hazards from past coal mining activities. If in doubt, contact the emergency services on 999.