The number of people experiencing breathing problems increased by 34 per cent on Thursday, London Ambulance Service has said.
The capital experienced "very high" pollution levels yesterday but air quality is expected to improve today.
We saw a 34% increase in patients with breathing problems yesterday compared to an average Thu
People with asthma may also find that they need to use their inhaler more frequently, have it with you at all times
Boris Johnson was accused of "dangerous complacency" after urging Londoners to "keep a sense of proportion" over the pollution scare.
Pollution levels in London are 'high' today according to the Government and the Met Office but what is causing the increase?