Air pollution from fine particles is intensifying and lasting over time in Ille-et-Vilaine. For what ? While it is of course recommended to reduce speed in the car, at the same time the Star bus and metro network is extending its “air quality” day pass to 1.70 euros.
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Since Sunday January 12, the air quality index recorded by Air Breizh in Ille-et-Vilaine indicates a high level of fine particles, with air quality judged “very bad” in Rennes. The director of Air Breizh, Gaël Lefeuvre, explains the reasons: “This is due to the conjunction of two phenomena: good weather and cold. The cold because it causes a lot of particle emissions due to inefficient wood heating. And the good weather, because due to anticyclone, the air mass is stable and there is no dispersion of pollutants and therefore fine particles stagnate and accumulate.
A major part of Ille-et-Vilaine is affected, Rennes in particular, Saint-Malo to a lesser extent. This Wednesday, January 15, a higher concentration of very fine PM 2.5 particles is expected than in previous days.
Also read: “With this small gesture, you halve particle emissions”, how can you heat with wood while avoiding pollution?
Following this episode of air pollution, the Ille-et-Vilaine prefecture set up an alert procedure. It results in a reduction of 20 km/h in the maximum authorized speed on the entire road and motorway network of the department. The speed thus increases from 130 to 110 km/h on motorways and from 110 to 90 km/h on expressways.
The prefecture has also set up differentiated traffic in Rennes to try to limit pollution. Vehicles without a “Crit’Air” sticker cannot circulate in the city, except on the ring road, from 7 a.m. to 8 p.m. This measure aims to reduce polluting emissions in response to a persistent pollution episode.
The prefecture particularly encourages citizens to avoid the use of private cars, when an alternative is possible. Precisely, to encourage residents of the Rennes metropolis to use public transport, the Star network is further extending its “air quality pass” this Wednesday, January 15, to 1.70 euros per day.
The prefecture also urges vulnerable people to limit their outings, especially when the sun is at its strongest. For everyone, practicing sports is largely discouraged.
Tomorrow Thursday, in Rennes, the Air Breizh air quality index will go from “very bad” to “poor”.
It is estimated that each year air pollution prematurely kills around 2,000 people in Brittany.
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