抄録
With an aspiration method using a cascade impactor, a total of 29,208 colonies were collected from the 354.25 cubic meter air of 11 different sites including 5 in-door environments and 6 out-door areas and a continuous sampling site in Kobe-city from February 1966 through February 1967. Monthly sampling was done in 11 sites and daily sampling except Sundays and holidays was performed in the continuous sampling site in 226 sampling days. It was summarized as follows:
1. An average number of fungal colonies per cub ic meter was high from June through September showing its peak in August in all sampling sites.
2. Approximately 69% of all fungal colonies were caught at the stage 2 and 3 (22.0 -2.3 microns in diameter of particles), while fewer percentages were caught at stage 1(bigger than 22 microns) and 4 (smaller than 2.3 microns) of cascade impactor.3. As to the kinds of fungi, Deuteromycetes predominantly accoun ted for 83.34% of all colonies collected, Yeasts 3.53 %, Phycomycetes 1.31 %, Ascomycetes 1.16 %, and Basidiomycetes 1.08%. Of Deuteromycetes, the five commonest genera were Penicillium, Aspergillus, Cladosporium, Alternaria and Fusarium.
4. In the in-door air, Penicillium came fi rst, followed by Aspergillus, Cladosporium, Alternaria and Fusarium in descending order, while in the out-door air Penicillium came first, followed by Aspergillus, Cladosporium, Yeasts and Alternaria in descending order.
5. Seasonal variations and environmental or areal differences in the numbers and kind s of fungal colonies were also discussed.
6. The airborne fungal flo ra in Kobe-city was characterized with much less Cladosporium and more Penicillium and Aspergillus than that in other Countries.
