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LPG supports London in reducing 5x more NO2 than any other UK city

The Mayor of London, Sadiq Khan, last week published new evidence which shows since he took office in 2016 the scale of reduction in toxic NO2 has been five times greater in central London than the national average.

This new data is being submitted as part of London’s response to the Environment Food and Rural Affairs Committee’s (EFRA) call for evidence scrutinising the Government’s air quality strategy. The Government’s own data shows just how little progress has been made outside London in the same period, demonstrating the significant improvements in London have been driven by local (as opposed to national) policy.


Sadiq has made huge strides in cleaning up London’s air, including introducing the world’s first Ultra Low Emission Zone (ULEZ) in central London. In 2020, before measures to address the COVID outbreak were introduced, hourly average levels of harmful nitrogen dioxide (NO2 ) at all monitoring sites in central London had already reduced by 44 per cent since 2017. In 2016, London’s air exceeded the hourly legal limit for nitrogen dioxide for over 4,000 hours. Last year, this fell to just over 100 hours – a reduction of 97 per cent.


Poor air quality stunts the growth of children’s lungs and worsens chronic illness, such as asthma, lung and heart disease. There is also emerging evidence linking air pollution with an increased vulnerability to the most severe impacts of COVID-19 – with those often most affected being from Black, Asian and Minority Ethnic communities.


George Webb, Chief Executive at Liquid Gas UK commented:


“It is positive to see a variety of air quality measures in London paying off, with such a significant reduction in emissions. The LPG industry is proud to be a contributor towards this achievement, as by converting from diesel to LPG you immediately save 80% NOx and 99% on Particulate Matter. The London Assembly made huge successes with funding towards low-carbon solutions such as LPG conversion and electric vehicles, now we need to see other cities across the UK supporting a suite of low-carbon solutions that can make an impact to local air pollution today.”


For more information on the benefits of LPG in decarbonising transport and improving air quality, please visit