The introduction of Glasgow’s Low Emission Zone (LEZ) has resulted in air pollution levels being cut by a third in the city centre.

Nitrogen dioxide levels in the LEZ region were significantly lower in 2024, having decreased by 34% since the scheme was implemented, according to the council.

The local authority has also reported a 21% reduction in harmful pollutants outside the LEZ area based on diffusion tube monitoring.

Furthermore, the city has attained ‘full compliance with all statutory air quality objectives’ for the first year since their introduction three decades ago.

According to the council, both its PM10 and PM2.5 annual objectives were met, while nitrogen dioxide levels were revealed to be below objective across every automatic monitoring station, ensuring compliance in both areas.

Highlighting the ‘transformative impact’ of the scheme, the council also announced that Hope Street, which is understood to be the location in Scotland with the highest nitrogen dioxide levels, currently has ‘concentrations nearly 10% below the statutory objective’.

Cllr Angus Millar, Convener for Transport, Climate and City Centre Recovery said: ‘Air pollution contributes to hundreds of deaths in Glasgow every year and damages the health of thousands more. The LEZ was introduced to tackle the stubbornly high pollution levels causing that. Now, for the first time, Glasgow is meeting the legal limits on air pollution at all recorded locations.

‘These significant improvements to city centre air quality come at a crucial time, as footfall continues to rise and key streets are transformed through the Avenues programme. Cleaner air not only reduces health risks but helps create a more pleasant environment for everyone.’

Cabinet Secretary for Transport Fiona Hyslop added: ‘Glasgow was the first LEZ in Scotland to start enforcement and the first to deliver these benefits. We can expect to see similar reductions across Aberdeen, Dundee and Edinburgh in time.

‘We know that air pollution disproportionately impacts the youngest, the oldest and those with pre-existing medical conditions. As such, the LEZ is working effectively to protect public health in Glasgow and reduce health inequalities.

‘At the same time - it's really encouraging that the revenue raised from the LEZ has been reinvested to support local community projects that work to protect the climate and further improve air quality across the city.’