Study on the Correlation Between Airborne Pollen Concentration and Allergic Rhinitis in Dalian City and Its Impact

OBJECTIVE To systematically investigate the spatiotemporal distribution of airborne pollen in Dalian (2024) and analyze its correlation with meteorological factors, air pollutants, and allergic rhinitis (AR) consultations, providing evidence for regional allergy prevention.METHODS Daily pollen samples were collected from July 9 to October 15, 2024, using gravimetric sedimentation. Pollen types were identified and quantified via optical microscopy after staining. Concurrent meteorological data (temperature, relative humidity, wind speed) and air pollutant levels (PM2.5, PM10, SO₂, NO₂) were obtained. AR case data were extracted from the Hospital Information System (HIS) of Dalian University Affiliated Zhongshan Hospital. Multivariate linear regression was employed to assess correlations.CONCLUSION AR incidence in Dalian is closely linked to seasonal pollen patterns, modulated by meteorological and pollutant interactions. Establishing a pollen monitoring system could optimize allergy prevention strategies.