Tous les pollens ne sont pas allergisants. Cependant, ils sont chaque année synonymes d'allergies pour 25% des français.

This brownish gas mainly comes from car exhausts : What is its impact on our health ?

Prenons l'exemple de la très connue vallée de l'Arve en Haute-Savoie : une des plus polluées de France. À la recherche de l'air pur.

The PM10 are four times bigger than PM2.5 : where do they come from ?

The particle matter (PM) is a physical particule : she is therefore defined by its size.

164,000 tons per year : to meet the EU's reduction commitments, fine particle matter PM2.5 will have to be reduced by 36%

Flow 2 from PlumeLabs: a recent study shows that good pollution information can cut exposure to pollution in half