Environment > London Expands Air Sensor Network

London plans to install 100 air quality sensors at hospitals, schools, and other priority locations over the next four years, under a new partnership between the Mayor’s officeBloomberg Philanthropies, and Imperial College London.

According to Cities Today, the £750,000 (US$834,585) scheme will add to the UK capital’s existing sensor network and aims to aid the city’s green recovery from the coronavirus pandemic.

London has made significant progress in tackling air quality but acknowledges that there is still a long way to go.

The annual Travel in London Report by Transport for London (TfL), published in October, found that the number of Londoners now living in areas where the amount of nitrogen dioxide (NO₂) exceeds legal limits has dropped by 94%  since 2016.

This has been attributed to the newly introduced low-emission bus zones and the launch of the ultra-low emission zone (ULEZ) in central London in February 2019, as well as huge drops in car use over the first few months of the coronavirus pandemic.

However, the report also found that 99% of Londoners still live in areas that exceed World Health Organization (WHO) recommended guidelines for particulate matter 2.5 (PM2.5)

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