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Vegetation in town:
Information guide about plants with allergenic pollens


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Updated 12th of April

Birch pollens for holidays.

While zones A and B will be on holiday in the coming days, birch pollen will be present in these regions precisely with a risk of allergy going from moderate and high levels. The rain showers at the beginning of April gave some respite to allergy sufferers, but unfortunately a new anticyclone approaches the country and will maintain a very sunny weather in the coming days allowing the dispersion of pollens in the air. The return of cold and frost in the north of the country for this weekend will however limit the high concentrations of pollen.

The pollens of plane tree and oak will also be present for the holidays, they will spread mainly from the west coast and around the Mediterranean with a risk of allergy that can reach the moderate level. On the northeast of the country it will be the pollen of hornbeam that will be responsible for a moderate risk of allergy.

Cypress pollens are losing speed in the south with a risk of allergy no longer exceeding the low level. Ash, poplar and willow will still spread some pollens, but without discomfort for allergy sufferers.

The pollens of Pinaceae (pine for instance) are still very abundant in the air on a large part of the territory especially in the South. They are yellow pollen that cover cars, roads, windows, sidewalks and tables. Fortunately these Pinaceae pollens are not allergizing.

The grasses already release some pollens over a large part of the territory. With the sunny days, the development of these herbs and the pollination will increase.

Allergy sufferers to birch pollen should be vigilant, while those sensitive to grass pollen should be prepared.

Birch and its pollen

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