Ragweed pollen (ambroisie) is expected to spread earlier this year across many parts of France, particularly in the Auvergne-Rhône-Alpes region.
The National Aerobiological Surveillance Network (NASN) announced on Tuesday that the Lyon region has reached a critical threshold of ragweed pollen in the air to begin causing allergic reactions in sensitive people. The peak for the concentration of pollen in the air is expected for the end of August, which would be in approximately 20 days.
While the risk of allergic reaction is highest in Auvergne-Rhône-Alpes currently, particularly in areas like northern Isère, Drôme, Ardèche and southern Rhône, the plant has spread across different regions in France. Up to 15 percent of the Auvergne-Rhône-Alpes could experience some level of allergic reaction from the plant, as it is highly allergenic, according to Anses.
It can also be found in Burgundy, Franche-Comté, New Aquitaine, Occitanie, as well as the north of the Provence-Alpes-Côte d’Azur region.
Bulletin allergo-pollinique du 05 août 2022
Ambroisie, canicule et pollution ne font pas bon ménage
Les pollens d’ambroisie sont de plus en plus présents dans l’air et viennent déjà fortement gêner les allergiques avec un peu d’avance sur l’an dernier…https://t.co/x8uuZJYofL pic.twitter.com/iSREmLM9WB
— Réseau National de Surveillance Aérobiologique (@rnsa_pollen) August 5, 2022
However, in contrast, ragweed is typically neither found in the Northern and Western parts of the country, nor along the Mediterranean coast.
The high pollen counts are expected approximately one week early this year due to the high temperatures seasonal temperatures.
Ragweed pollen can cause runny noses, stinging eyes and even breathing difficulties in people with an allergy, said Samuel Monnier, engineer at the NASN, to BFMTV.
If you have a ragweed allergy, consider consulting a doctor or allergist to pre-empt or treat the symptoms, recommends Monnier. Residents in regions where the pollen count is high might also consider drying clothes inside rather than outside, in order to keep the pollen from sticking to clothing.
The plant is considered particularly invasive, and many local authorities have put into place systems to remove it when spotted. In order to report the presence of ragweed, you can go to the website signalement-ambroisie.fr or download the smartphone application “Signalement-Ambroisie.”
If you’re sensitive to pollen, you can keep up with the interactive pollen count maps across France by going to the website www.pollens.fr/