Sadiq Khan has called on health workers to play a greater role in informing patients of the risk of air pollution and how to protect themselves.
Ahead of the summit, Mr Khan said: “We simply don’t have time to waste.
“Deadly air pollution is permanently damaging the lungs of young Londoners and affecting older people who are more vulnerable to the impacts of poor air quality.
“This is also about social justice. We know pollution hits the poorest Londoners, who are least likely to own a car, the hardest”.