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.
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A mother and father have been convicted of child neglect after their one-year-old daughter died with 70 separate injuries, police said.
The RFU has issued a two year ban to fans who hurled homophobic abuse at referee Nigel Owens at a recent England international.
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