The current weather conditions have led to a significant rise in smog levels around London. Parts of east London have been recorded at 'very high'.
Take a look at the figures in full from Defra here.
More top news
Ex-London mayor Ken Livingstone says he is sorry for the "disruption" caused by his comments that Adolf Hitler was a supporter of Zionism.
Kickstarter group asks for public donations to fund replacing Tube ads with pictures of cats
Sir David Attenborough opens Woodberry wetlands in Stoke Newington