The Nord, Pas-de-Calais and Somme experienced Sunday and Monday an episode of air pollution with PM10 particles, linked to the sunny weather, warned Atmo Hauts-de-France on Sunday.
For these three departments of Hauts-de-France, the "
alert level on persistence
" will be exceeded, the concentrations of PM10 particles (less than or equal to 10 microns) must remain high on Monday, according to the association responsible for monitoring air quality in the region.
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"
Sunny weather and high temperatures favor the production of secondary particles
" and "
the current meteorological conditions (weak winds, high temperature) do not allow a good dispersion of pollutants in the air
", indicates Atmo in a press release. 'after a summer with more turbulent weather. PM10 particles are particles in suspension, emitted by industrial and agricultural activities, automobile traffic and heating.
On Saturday, the concentrations of PM10 particles in the region exceeded the level of information and recommendation in the sole department of the Somme. During these episodes of air pollution with PM10 particles, it is recommended that frail people avoid areas with heavy road traffic, and the general population to avoid strenuous physical activity.
