The Green Party has published this picture, claiming that is shows "why we need a very low emission zone for central London ASAP, not in 2020".
It is a map of nitrogen dioxide (NO2) pollution in the congestion charging zone, put together by Assembly Member Jenny Jones.
It is based on NO2 emissions modelling carried out by Kings College London, not on actual readings.
More top news
Corey Briscoe-McLeary, 38, was seen by a police helicopter crew mounting the pavement and running red lights.
The New West End Company representing businesses in Oxford St, Regent St and Bond St said reopening posed 'extraordinary challenges'.
Dominic Cummings said he drove to Barnard Castle with his wife and child to test his eyesight before making the drive back to London.