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. 2002 Apr;68(4):1743–1753. doi: 10.1128/AEM.68.4.1743-1753.2002

TABLE 2.

Percentages of buildings positive for common fungal types by region and season

Organism(s) % of buildings positive
Far Westa
Midwest
Northeast
F (n = 54)b SP (n = 47) SU (n = 43) W (n = 45) F (n = 100) SP (n = 87) SU (n = 101) W (n = 68) F (n = 69) SP (n = 86) SU (n = 63) W (n = 61)
Aspergillus flavus 2/4d 0/0 5/5 0/0 2/6 5/1 8/6 3/4 7/4 0/0 2/2 2/5
Aspergillus fumigatus 35/29 28/21 42/30 31/27 26/30 15/13 32/35 18/32 38/30 21/17 23/27 19/23
Aspergillus niger 31/44 13/6 30/37 9/13 23/29 14/1 32/28 13/13 25/28 9/2 13/21 11/3
Aspergillus speciesc 70/60 64/36 77/58 62/44 68/60 57/37 71/52 52/60 78/65 55/30 68/53 65/44
Aspergillus versicolor 43/11 34/9 56/21 33/4 39/15 36/3 38/7 33/16 41/12 24/9 40/10 44/18
Acremonium 11/2 2/9 5/5 4/4 14/4 8/1 15/4 4/1 10/6 5/2 11/3 6/0
Alternaria 24/25 15/15 9/14 9/13 15/20 9/13 21/27 10/10 14/14 1/6 16/19 8/5
Aureobasidium 17/9 19/13 5/9 16/16 14/7 10/10 7/8 4/6 17/30 9/18 10/18 16/8
Candida 11/13 19/15 12/16 24/24 18/17 7/20 10/16 10/7 16/25 9/13 16/15 3/11
Cladosporium 98/96 94/98 91/100 87/96 90/99 67/84 92/96 70/79 93/97 72/79 94/97 71/59
Curvularia 2/2 0/0 0/2 0/2 2/2 3/1 2/2 0/0 7/1 0/0 8/3 3/0
Epicoccum 19/7 0/4 2/14 4/2 18/27 0/5 13/16 4/4 14/16 1/1 11/15 5/0
Fusarium 6/2 21/2 7/5 2/7 18/21 5/2 21/26 0/6 6/9 0/3 16/18 16/0
Geotrichum 24/22 36/30 21/12 36/62 26/29 23/36 23/25 24/49 35/26 29/37 31/34 21/41
Hyalodendron 17/0 13/13 12/9 9/2 4/0 11/14 8/5 4/4 4/4 20/29 21/6 2/2
Nonsporulating fungi 81/93 83/98 86/95 82/96 84/95 66/84 91/98 70/85 83/96 64/85 89/97 76/80
Penicillium 91/82 87/83 86/88 93/91 80/84 64/59 86/82 64/60 94/88 71/55 85/82 71/56
Rhinocladiella 2/2 2/2 0/5 0/2 8/7 3/0 10/7 0/0 7/3 3/0 23/19 0/0
Rhodotorula 41/38 49/38 26/42 58/60 35/41 38/51 36/27 31/35 49/48 36/45 35/26 26/34
S. chartarum 15/2 9/2 5/0 4/2 8/0 7/1 8/2 6/0 10/0 5/1 3/2 6/2
Trichoderma 7/4 15/2 7/2 2/7 13/16 3/1 12/5 6/1 10/4 1/5 5/5 8/0
Tritirachium 24/9 9/9 9/14 18/2 56/37 13/6 30/22 16/3 48/39 15/1 32/15 8/2
Unidentified fungi 4/0 11/4 9/9 2/2 8/2 5/3 4/1 4/3 10/3 4/2 10/3 2/5
Yeast 20/13 19/28 21/19 29/20 19/12 20/15 35/17 21/25 35/20 20/24 35/10 24/34
a

See Fig. 1.

b

F, fall; SP, spring; SU, summer; W, winter.

c

Aspergillus species includes Eurotium, Emericella, A. flavus, A. fumigatus, A. niger, A. versicolor, and all other Aspergillus species listed in Table 3.

d

Value for indoor samples/value for outdoor samples.