
Causes of cancer

Air pollution has been shown to increase the risk of lung cancer. Find out about the latest research into how air pollution can cause cancer.

Radon is a natural radioactive gas. When it builds up indoors to high levels, it increases the risk of lung cancer.

Ionising radiation can cause cancer if a person is exposed to a lot of it. Some medical scans use small amounts of ionising radiation but the health risks are low.
Questions about cancer? Call freephone 0808 800 40 40 from 9 to 5 - Monday to Friday. Alternatively, you can email us.