Which cities across the world have the worst air pollution and how does London compare?

In the UK, toxic air pollution is estimated to cause between 29,000 and 43,000 premature deaths every year (Victoria Jones/PA) - (PA Wire)

A new report from the Royal College of Physicians (RCP) has revealed that around 30,000 deaths in the UK will be linked to air pollution in 2025.

Air pollution can cut lives by 1.8 years, which is “just behind some of the leading causes of death and disease worldwide,” such as cancer and smoking, the doctors wrote. The report also revealed that air pollution costs the UK an estimated £27 billion a year in healthcare costs and productivity losses.