Londoners were given an air pollution reprieve as toxic air levels in the capital dropped days after reaching a six-year high.
London Mayor Sadiq Khan took unprecedented steps on Monday to issue “black” or “very high” warnings in parts of London as the level of air pollution soared.
On Wednesday, across the majority of London boroughs, this has now fallen to a “low” level.
Some boroughs, including Lambeth, Richmond, Tower Hamlets and City of London, are at a “moderate” level.
Kensington and Chelsea, at a “moderate” 6/10, is at the highest level.
It comes after high readings for tiny particulate pollution were recorded in the City area, Westminster, North Kensington and Camden on Monday.
"Black” 10/10 warnings were issued on Monday and Tuesday in Swiss Cottage.
Experts from King’s College London said the 10/10 alert meant “adults and children with lung problems, adults with heart problems, and older people, should avoid strenuous physical activity”.
A spokesman for King's said on Wednesday: "At the moment it is an improving level. As the day progresses we are going to see a change in the weather and the wind is going to pick up.
"Everyone here and on the continent has been pumping out our emissions into the same stagnant air space.
"Pollution that is over us is going to move and pollution that is over the continent is going to circle over us.
"Tomorrow there will still be moderate pollution, with a possibility of high."
It was revealed earlier this week that pollution hit unusually toxic levels due in part to the number of Londoners burning fire wood in their homes.
Scientists at King’s explained that pollution from Europe on Sunday afternoon was followed in the evening by cold, foggy conditions, with little wind to disperse filthy air build-ups.
They added: “The rapid rise in pollution at this time was caused by a combination of traffic pollution and also air pollution from wood burning.”
