While the rain provides respite for those allergic to birch pollen, they will need to be extra vigilant when drier weather returns next week.
Weeks go by and look the same for allergy sufferers! The one that arrives will be under the sign of birch pollens. If no sustained rain falls in the coming days, the quantities of these pollens will be increasing, alert the National Aerobiological Surveillance Network (RNSA) in his last newsletter allergo-pollen.
These quantities could over a large northern half of the territory cause a risk of allergy “medium” to “very high” depending on the state of flowering of these trees.
The respite will come with the rain
In the Mediterranean rim, one threat drives the other. The plane tree pollens replace those of cypress trees and will progress over the rest of the territory, while oak pollens appear in the South. Ash pollens will always be present locally with a “medium” risk, while willow, poplar and cypress pollens will be more discreet.
Finally, grass pollens will always be present from the Atlantic coast to the Mediterranean coast, but the associated risk will remain “low”. The unpleasant surprise could come from the pollen of bettors which will spread on the Côte d’Azur. “If the rain provides respite for those allergic to birch pollen, we will have to remain very vigilant as soon as drier weather returns,” warns the RNSA. The respite is likely to be short-lived.
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