Times are tough for people with pollen allergies. For several weeks, pollen has been circulating a lot throughout France and more particularly for a few days, due to weather conditions that favor the emission and dispersion of grass pollen in the air.
Indeed, at the end of May, the national aerobiological surveillance network (RNSA) extended its red alert for grass pollen to 90 departments, almost the entire territory.
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Bad news for many when we know that "grass pollens are the allergens most responsible for pollinosis (allergic rhinitis due to pollen) in patients", as indicated on its website the ALK laboratory, a pioneer in allergy research and treatment.
Another bad news is that the grass season is the longest among pollens since it lasts five months, from May to September. If most pollens are present in the air until the end of May or even earlier, as is the case for cypress, birch, willow or poplar, the allergy season is not over for people sensitive to oak, olive or linden pollen.
As a reminder, pollen allergies affect 30 to 35% of adults and about 20% of children from 9 years old, according to ANSES figures. According to data from federations of allergists, the prevalence of respiratory allergies has tripled in 30 years.