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Historical Pollen Levels
Explore trends and compare seasons across years.
Region
Continental Croatia
Littoral Croatia
Highland Croatia
Dalmatia
Istria & Kvarner
Slavonia
Allergen
Alder (Alnus)
Birch (Betula)
Grass (Poaceae)
Mugwort (Artemisia)
Olive (Olea europaea)
Ragweed (Ambrosia)
Year
2026
2025
2024
2023
2022
2021
2020
Month
Full Year
January
February
March
April
May
June
July
August
September
October
November
December
Compare with Year
No Comparison
2025
2024
2023
2022
2021
2020
Birch - Continental Croatia 2026
No data for the selected period