Relationships between Pollen Count of Japanese Cedar, Weather, and the Number of Patients Suffering from Allergic Rhinitis in Our Clinic

Abstract

We investigated the relationships between the daily and weekly pollen count of the Japanese cedar, the number of patients, and weather in 1986 and 1987. Daily pollen counts were obtained by the gravity method in Kashihara city, Nara city, and Kawakami village. The weather data were taken from Nara meteorological observatory. Sunny warm days and humidity influenced the pollen count a little. Maximum windspeed influenced the pollen count very little. The pollen count influenced the number of the patients one week later.