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Situation

17.4.2024

Hazel flowering is coming to an end in Southwest Finland and Uusimaa. Alder flowering is weakening in southern parts of the country and flowering intensifies in central parts of the country. Flowering has started in the warmest habitats of Northern Ostrobothnia and Kainuu.

Hazel pollen quantities are at zero level. The air contains alder pollen throughout the country ,Lapland excluded.

The local birch flowering season has not yet started. Birch pollen is long-range transported in the southern parts of the country.

Rain reduces local pollen levels.