Lockdown did not reduce air pollution from tyre wear in London – The Guardian

PollutionwatchLess traffic meant less congestion, but the remaining vehicles went faster
I asked William Hicks how he felt when lockdown suddenly happened in the middle of his year-long air pollution investigation. Excited, he replied. Not the answer that I expected. It was like moving the field laboratory to a whole new road. Hicks, and his team from Imperial College London, were studying tiny particles from tyres, brakes and road surfaces on Londons Marylebone Road.
The inside of the field laboratory…

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