5
TABLE 2. Outdoor airborne fungal frequencies and concentrations
Organism(s)
Frequency of
Occurrence
(%)
Concentration (CFU/m
3
)
Mean Maximum 95
th
percentile
Acremonium
1.3 0.46 47 ND
Alternaria
41.1 10.04 106 47
Aspergillus sp.
53.2 13.19 247 47
Aureobasidium
17.3 3.37 188 24
Basidiomycetes 50.2 49.14 1390 186
Cladosporium
84.8 125.19 1235 518
Curvularia
7.8 0.77 14 7
Epicoccum
15.2 2.22 35 13
Fusarium
9.5 1.51 71 12
Hyalodendron
2.6 0.96 106 ND
Non-
sporulating
36.4 5.91 71 24
Paecilomyces
6.1 0.61 14 7
Penicillium sp.
74.5 35.22 683 108
Phoma
19.0 3.76 82 24
Rhodotorula
16.0 3.06 59 24
Stachybotrys
0.9 5.91 71 ND
Trichoderma
4.3 0.48 12 ND
Tritirachium
5.6 1.60 94 7
Yeasts 35.9 7.57 106 35
ND = None Detected (<7 CFU/m
3
)
