Public Health Wales estimates air pollution contributes to up to 1,400 deaths a year in Wales.Read more
The final 20,000 tickets for London's New Year Eve fireworks will go on sale next Thursday, City Hall has announced.
A global television audience will be watching as more than 100,000 ticket-holders gather opposite the London Eye to welcome in the new decade in style.
More than 12,000 fireworks are expected to be set off.
Tickets must be purchased in advance to attend the fireworks and are priced at £10.
Police investigate after fireworks were thrown at a homeless couple sleeping in a tent.