Radon is a naturally occurring radioactive gas, which has no smell, colour or taste. It comes from the radioactive decay of radium, which is present in small amounts in rocks and soil. Radon is chemically inert, so it can easily escape from the ground into the air where it can be inhaled.

Fact sheets

The following fact sheets provides information on issues relating to radon and health:


The following advisory note provides advice on the new dose coefficients for radon progeny:

Frequently asked questions

These responses to frequently asked questions will help you learn more about radon and its impact on health:

Radiation Health Committee statement

In February 2018 the Radiation Health Committee published a statement on the new radon dose coefficients and the implications for worker dose assessments:

Measuring radon in your home or workplace

You can order a radon monitor from our Personal Radiation Monitoring Service to help you measure the levels of radon in your workplace or from our meter hire service to measure the levels of radon in your home.

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