Paris, May 26 – The Île-de-France region is currently experiencing its first heatwave of the year, accompanied by a significant ozone pollution peak. In response, the Paris police prefecture has announced traffic restrictions for today, Tuesday, May 26, 2026. These measures aim to mitigate the environmental impact and protect residents from the adverse effects of poor air quality.
Speed Limits Reduced Across Île-de-France
To combat the escalating pollution, maximum speed limits have been reduced by 20 km/h across all major road networks in the Île-de-France region. This includes:
- 110 km/h on motorway sections normally limited to 130 km/h.
- 90 km/h on motorway and expressway sections normally limited to 110 km/h.
- 70 km/h on motorway and expressway sections normally limited to 90 km/h, as well as on national and departmental roads limited to 80 km/h or 90 km/h.
These restrictions are in effect daily from 5:30 AM to midnight and apply throughout the entire Île-de-France region, which is currently under a pollution alert. Furthermore, heavy goods vehicles over 3.5 tonnes in transit are obligated to bypass the capital via the francilienne ring road. Roadside checks are planned to ensure compliance with these imposed limits.
Why These Measures?
As is common during periods of high heat, air quality in Paris and Île-de-France deteriorates drastically. According to Airparif, these meteorological conditions, combined with daily pollutant emissions in the region, promote the formation of ozone pollution. This results in poor air quality, particularly harmful to vulnerable individuals.
Recommendations for Residents
The prefecture urges residents to avoid using cars, opt for carpooling, or work remotely whenever possible. It is also recommended to stay indoors during the hottest hours, especially for fragile individuals. Additional health recommendations include:
- Avoiding activities that generate pollutants.
- Minimizing the use of solvent-based products (acetone, varnish, glues, paint, etc.).
- Reducing the operation of fixed installations whose emissions contribute to the pollution episode.
- Industrial emitters are advised to ensure the proper functioning of treatment devices for volatile organic compounds and nitrogen oxides.
Health Advice for Vulnerable Individuals
Health authorities recommend that sensitive individuals (children, the elderly, asthmatics, or those suffering from respiratory and cardiovascular pathologies) limit intense physical and sports activities outdoors. If pollution levels intensify further, additional traffic restrictions for the most polluting vehicles could be implemented in the coming days.
Looking Ahead
The situation will be closely monitored, and these restrictions could be extended throughout the week if the heatwave and pollution persist. Residents are encouraged to stay informed through official channels for updates on air quality and traffic conditions.
