Fine particle alert. The red vigilance level was triggered on Sunday in the Arve valley in Haute-Savoie, affected in recent days by an episode of atmospheric pollution, announced the department prefecture. Several measures come into force “from tonight […] at midnight” until the end of the “combustion type” pollution episode (fine PM10 particles), which extends from the Chamonix valley to the limits of the Pays Rochois, she specifies in a press release. .
These measures are in addition to those already in force in the sector since the orange alert on Saturday. Among them, the ban on the use of individual supplementary or pleasure wood heaters (fireplaces, stoves, etc.) and generators, the reduction of the heating temperature of buildings to 18 degrees, or even the lowering speed to 70 km/h for speeds greater than or equal to 80 km/h.
Differentiated traffic for heavy goods vehicles
Traffic will be differentiated for heavy goods vehicles weighing more than 3.5 tonnes on all roads in the air basin and only those with a crit'air sticker 0 to 4 will be authorized to circulate. For businesses and industries, it is particularly requested to postpone operations emitting pollutants (volatile organic compounds, fine particles and nitrogen oxides) until after the pollution episode.
Until then, the prefecture invites “sensitive and vulnerable” people to avoid intense physical activities outdoors, to postpone activities requiring the most effort or to move away from areas with “heavy car traffic”.
“No development”
“No change” in weather conditions is expected for Monday, with a “temperature inversion” which “remains present across the entire region as well as cold temperatures,” the observatory indicates on its website. of air quality Atmo Auvergne-Rhône-Alpes. According to a report from Public Health France dating from 2021, some 4,300 deaths in the Auvergne-Rhône-Alpes region were attributable to fine particles.
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