The grass pollen season (Poaceae) remains at a high level. During this period, the critical threshold of 50 grains/m³ is frequently exceeded, particularly on warm and dry days. Allergic individuals to this pollen type may experience symptoms and are advised to follow their treatment and take the necessary measures to limit their exposure.

It is also worth noting that chestnut trees (Castanea) are beginning to flower. The first pollen grains have been detected across all monitoring stations in the network. However, this pollen has a limited allergenic impact within the population.