The BBC had this back in April, which I’ve only picked up on today:
In total, 386,374 people died of pneumonia during the eight years
examined, but there were significant regional variations. Lewisham in
London had the highest number of deaths per head, Berwick-on-Tweed the
The researchers think the problems are caused by exhaust fumes, although lung specialists urge some caution in making a direct link.