An alert to fine particle air pollution was triggered on Tuesday in the Nord, Pas-de-Calais, Oise and Somme, causing speed limits on the roads, announced the prefecture.
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The regulatory level of PM10 particles (with a diameter less than or equal to 10 microns)
“could be exceeded today and tomorrow.
Consequently, the level of alert on persistence is triggered for these departments ”
, explains the prefect of the North defense and security zone in a press release.
Speed limitation and postponed spreading
From this Tuesday at 6:00 p.m. and for the whole day of Wednesday, the speed limits are lowered in these departments by 20 km / h on all axes where motorists can usually travel at 90 km / h or more.
On axes where the speed is normally limited to 80 km / h, it is lowered to 70 km / h.
In the agricultural sector, the prefect recommends postponing the spreading of fertilizers
Open-air burning of green waste is also prohibited and the prefecture asks individuals and communities to postpone work carried out with non-electric tools (mowers, hedge trimmers, etc.) or solvent-based products. organic.