1995 Volume 1995 Issue Supplement85 Pages 65-70
Japanese cedar pollinosis is one of the most common pollinosis in Japan.
We have measured the amount of Japanese cedar pollen in the air, using Durham's standard pollen sampler method, at seven observation sites in Ishikawa prefecture. The total seasonal pollen count was greater at five observation sites in 1992 and 1993, while they were not as high at the other two sites each year. This finding suggests that the pollen count is influenced by the surroundings. Although there was no difference in the duration of the pollination season among the seven observation sites, The daily changes in the pollen count in the Noto area differed from those in the Kaga area. Therefore at least two observation sites, in the Noto and the Kaga areas, are necessary to investigate the daily changes in the pollen count.
With regard to pollen counts and meteorological factors, this study was in agreement with previous reports: there was a good correlation between the total seasonal pollen counts and meteorological factors the previous summer, and between the beginning date of pollen scattering and meteorological factors in January and February. We hope that a forecast of Japanese cedar pollen count in Ishikawa prefecture will be started in the near future.
