The adverts, which were broadcast and published between January and June, claimed that the existing Ulez in central London had almost halved levels of nitrogen dioxide (NO2) and that most air pollution related deaths actually occur in outer London.
A TfL spokesman told the Sunday Telegraph it was strongly challenging the draft recommendations. The ASA is not challenging the science the science is absolutely clear about the significant harm of air pollution on people's health and that estimated premature deaths from air pollution are higher in outer London than in inner London.
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