PUBLIC Health England has launched its campaign to highlight the hidden dangers that secondhand smoke in homes and cars can cause to children’s health - following the passing by Parliament of regulations to end smoking in cars carrying children in England.

Professor Dame Sally Davies, chief medical office, said: “The passing of regulations to make smoking in cars carrying under 18s illegal is a significant victory for protecting children’s health from secondhand smoke.

"Smoking just a single cigarette in a car exposes children to high levels of air pollutants and cancer causing chemicals like arsenic, formaldehyde and tar.”

The Smokefree Homes and Cars campaign features advertising on TV, radio and online.

Smokers can search ‘smokefree’ or visit nhs.uk/smokefree for a range of free support and quitting advice, including the Smokefree app and Quit Kit.

The law change comes into force on October 1.