Pollen Count & Forecast for Xi'an

Xi’an’s spring allergy season (March-May) has Plane and Poplar pollen; London Plane (Platanus acerifolia) trees line city streets; Poplar (Populus) is common near the Wei River. Willow (Salix) is common in Xingqing Palace Park. Summer and autumn (July-September) have high Mugwort (Artemisia) levels; this weed grows near the Qinling Mountains and Qujianghu Park. Grass (Poaceae) pollen peaks during summer.

The Loess Plateau’s dry winds transport dust into the city; the surrounding Qinling Mountains block air movement. Autumn and winter see high Mould (Alternaria, Cladosporium) spore counts; damp soil in Tang Paradise and decomposing vegetation near the Ba River increase levels.