A voluntary ban on smoking is being introduced in all public play areas across Sefton later.
The borough has received overwhelming support from residents.
Research shows that reducing children's exposure to cigarettes makes them less likely to smoke when they're older
More top news
Families of the Germanwings crash victims may have to wait up to four months for their remains to be identified.
Houses and buildings across the regions have been hit by severe weather overnight.
Clarke Carlisle "thinks about and prays for" the lorry driver he jumped in front of last year when he attempted to take his own life