Grasses resist. In mainland France, these pollens will still be the main culprits in the coming week for the symptoms experienced by people with allergies.
Despite the heat and the very present summer, you can’t stop sneezing. It’s normal. And your packet of tissues is not yet ready to leave your pockets. In his last bulletin valid until July 25, the National Aerobiological Surveillance Network (RNSA) notes “a high risk of allergy over a good part of France: the grasses never stop pollinating”, he writes. Only 14 metropolitan departments (out of 96) should indeed escape
According to Charlotte Sindt, director of the RNSA, “these pollens will still be the main culprits in the week to come for the symptoms experienced by allergy sufferers”. Fortunately, “the quantities should gradually decrease in the coming days”, she adds.
The threat of ambrosia draws near
But grass pollens are not the only ones hovering in the metropolitan air, chestnut trees will also be present. They are, it is true, in full pollination all over France with sometimes very large quantities. “However, this pollen has a low to negligible allergenic potential and should not bother allergy sufferers much,” reassures the Network. Ditto for urticaceae and plantain pollens which will also be present throughout the territory but with a low associated risk of allergy.
Finally, regarding the ragweed pollen that should be noted (on www.signalement-ambroisie.fr), the very high temperatures of the first half of July led the RNSA to reassess the forecast made last month. Bad news since it advances the range of highest probability to the period from August 9 to 12. “This for the first peak likely to cause a significant risk of allergy in the Lyon region,” he says.
He specifies that these dates can be advanced by 4 to 5 days in the South of Lyon and delayed in the North by 3 to 5 days.
Source: RNSA
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