London must be ‘diesel-free’ to comply with new WHO air quality guidelines. Average concentrations of nitrogen dioxide (“NO2”), a toxic gas, monitored in Outer London were significantly lower in the first six months after ULEZ expansion than in the comparable period in 2022-2023. ‘Clean Air in London’ has published its NO2 analysis and ‘Clean Air Scorecard’ of … Read more
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WHO slashes Air Quality Guidelines to save millions of lives