Most PM2.5 – the nasty airborne particles that we inhale and can lodge in lungs, heart and bloodstream, causing all manner of disease – now comes from brake dust and tyre wear, not tailpipes, says Prof Alastair Lewis, chair of Govt independent science advisory group on air pollution. ‘So even an electric vehicle inside a ULEZ will still be emitting PM2.5.’
What he doesn’t say is that brake dust and tyre wear are maximised by traffic control and minimised by the gentle low speed filtering you get on Equality Streets.
