Pollen Count & Forecast for Daejeon
About Pollen in Daejeon
Daejeon’s spring allergy season (April-May) is dominated by Oak (Quercus) and Pine (Pinus) pollen; Oak is abundant in Gyeryongsan National Park and Bomunsan Mountain; Pine is common near Gyejoksan Mountain. Summer (June-August) sees high Grass (Poaceae) pollen levels; these originate from the Gapcheon and Yudeungcheon riverbanks. Autumn has Ragweed (Ambrosia) and Mugwort (Artemisia); these plants grow in fields around Daedeok Innopolis.
The city’s basin geography traps pollen; surrounding mountains prevent wind dispersal of allergens. High humidity during the summer monsoon supports Mould (Alternaria, Cladosporium) growth; spores are common near damp river environments and Hanbat Arboretum.
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What Pollen Levels Mean
LOW
Symptoms are unlikely
MED
Moderate risk of symptoms
HIGH
Widespread symptoms likely
V.HI
Expect significant symptoms
X.HI
Extremely high symptom likelihood & severity