A Study on Pollinosis : II. Atomospheric Pollen Survey in Sagamihara City Kanagawa Prefecture

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  • Furuya Kazuo
    Department of Physical Therapy and Medicine, School of Medicine, University of Tokyo Allergy Center, Sagamihara National Hospital

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Other Title
  • 花粉症に関する研究(II) : 相模原市における空中花粉の調査成績(続)
  • 花粉症に関する研究-2,3-
  • カフンショウ ニ カンスル ケンキュウ 2 , 3

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Abstract

Air-born pollen survey was carried out in Sagamihara city during 1965-1968, according to the standards of the American Academy of Allergy for air-born allergen surveys in USA. 1) Japanese cedar (Cryptomeria japonica), white cedars (Chamaecyparis spp), and pines (Pinus spp), occupied a majority of all pollens. 2) Predominant tree pollens in angiosperms were oaks (Quercus spp), (Zercova serrata), hornbeams (Calpinus spp), alder (Alnus spp), and hackberry (Celits sinensis). Other tree pollens were a few willows (Salix spp), maples (Acer spp), sycamores (platanus spp), chestnut (Castanea spp), chinquapins (Castanopsis spp), walnut (Juglans), cherry (plunus spp), Euptelea and so on. 3) Pollens of grass family were observed abundantly in 2 seasons of may-june and september-october. In the latter season, grass pollens were more abundant than those in the former season. But in the former season, grass pollens were rather going to increase year after year. 4) Abundant weed pollens were sagebrush (Artemisia spp.) short and giant ragweed (Ambrosia elatior and trifida), japanese hop (Humulus japonicum), and freabane (Erigeron spp.) plumpoppy (Macleaya cordata), and common plantain (Plantain asiatica) were also observed frequently. 5) Pollens of Japanese cedar, pine and oak showeda little change on each count every year. On the other hand, pollens of white cedar and japanese elm changed remarkably from year to year. 6) Pollinating periods of pine, oak and japanese elm in spring showed remarkable change according to the atmospheric temperature. But sagebrush in autumn showed little change every year in pollinating period.

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