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London’s expanded Ultra-Low Emission Zone (ULEZ) is making significant strides in reducing air pollution, according to a recent report from independent air quality experts. The ULEZ, which launched in 2019 and became the largest low-emission zone in the world after its latest expansion in August 2023, targets vehicles that do not meet stringent emissions standards.
The initiative has resulted in a notable 27 percent decrease in nitrogen dioxide levels and a 31 percent reduction in fine particulate matter in outer boroughs. Air quality improvements have been recorded at 99 percent of air monitoring sites throughout the city. The reductions in carbon emissions are equally impressive, equating to the elimination of three million one-way flights between Heathrow Airport and New York City.
As of September 2024, nearly 97 percent of vehicles in London comply with ULEZ standards, a significant increase from 39 percent in 2017. This shift has been supported by a scrappage program that allocated £200 million (approximately $258 million) to help residents scrap or retrofit older vehicles. More than 54,000 applications for the program indicate a strong public commitment to embracing cleaner transportation options.
Contrary to initial concerns, the economic impact of the ULEZ expansion on local businesses has been minimal. Retail and leisure spending have remained stable, with visitor numbers increasing by nearly 2 percent since the zone’s enlargement.
Looking ahead, London plans to implement additional green initiatives, including the introduction of more zero-emission buses, expanding cycling networks, and increasing access to electric vehicle charging points. The city aims for at least 80 percent of all trips to be made by walking, cycling, or public transportation by 2041.
As London continues to lead the way in reducing urban air pollution, other cities around the world may consider adopting similar strategies to improve air quality and public health.
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