Table 1. Description of environmental fungal loads collected by HTSTs and viable impaction sampler.
| Outdoor air collected by HTST-O1 n = 28 days |
Outdoor air collected by HTST-O2 n = 28 days |
Outdoor air collected by HTST-C n = 30 days |
Indoor air collected by HTST-I n = 28 days |
Indoor air collected by viable impaction sampler n = 19 days |
Wilcoxon statistic (P-value)c | |||
|---|---|---|---|---|---|---|---|---|
| HTST-O1 versus HTST-O2 | HTST-O2 versus HTST-I | HTST-I versus viable impaction sampler | ||||||
| Median TFLa, (IQR)b | 3,025.0 (2,056.3–4,381.3) |
3,287.5 (1,768.8–5,768.8) |
3,625.0 (2,425.0–5,500.0) |
850.0 (687.5–1,162.5) |
100.0 (37.5–155.0) |
169.5 (0.6) | 6.5 (<0.01) | 171 (<0.01) |
| Median AFL or Aspergillus spp. loada, (IQR)b | 100.0 (0.0–125.0) |
100.0 (0.0–162.5) |
125.0 (0.0–200.0) |
0.0 (0.0–0.0) |
5.0 (0.0–10.0) |
28.5 (0.9) | 1 (0.05) | 12 (0.01) |
NOTE: AFL: Aspergillaceae fungal load, HTST: Hirst-type spore trap, IQR: Interquartile range. TFL: Total fungal load.
aIndoor air collected by HTSTs was expressed in AFLs, and indoor air collected by viable impaction sampler was expressed in Aspergillus spp. load.
bExpressed in particles/m3 for HTSTs with conversion factor 25.7 and in CFU/m3 for viable impaction sampler.
cWilcoxon statistics and P-values calculated with Wilcoxon’s paired signed-rank test.