Pollen Count & Forecast for Nanjing
About Pollen in Nanjing
Nanjing’s spring allergy season (March-May) is dominated by Plane and Willow pollen; Chinese Plane (Platanus orientalis) prolific along avenues near the Sun Yat-sen Mausoleum; Willow (Salix) widespread around Xuanwu Lake. Poplar (Populus) contributes significantly from the slopes of Purple Mountain. Summer (May-August) sees high Grass (Poaceae) pollen levels, originating from riverbanks along the Yangtze River and suburban fields.
Purple Mountain acts as a major pollen source; urban heat islands and high humidity trap particles within the city center. Autumn and winter see elevated Mould (Alternaria, Cladosporium) spore counts, from decomposing leaf litter in parklands and along the Qinhuai River during the damp monsoon transition.
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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