Table 3.
Mean (and standard deviation), maximum (Max), and minimum (Min) values of the indoor and outdoor airborne bacteria concentration in the tested environments (CFU/m3)
| Locations | C ± s | Max | Min | ||||
|---|---|---|---|---|---|---|---|
| Indoor | Outdoor | Indoor | Outdoor | Indoor | Outdoor | ||
| Classrooms | Ground floor | 162 ± 140 | 3019 ± 1725 | 1363 | 5924 | 52 | 524 |
| 1st floor | 594 ± 405 | 7289 ± 4642 | 2411 | 17,352 | 52 | 1992 | |
| 3rd floor | 247 ± 157 | 8495 ± 8631 | 734 | 32,188 | 52 | 1887 | |
| Dorms | Male | 1956 ± 3407 | 6806 ± 6575 | 19,514 | 20,235 | 157 | 1101 |
| Female | 2847 ± 2554 | 8589 ± 8101 | 13,001 | 25,635 | 105 | 891 | |
| Dining hall | Ground floor | 513 ± 311 | 3853 ± 1697 | 1678 | 6448 | 105 | 1468 |
C is the mean concentration of all sampling positions, and s is the standard deviation. Twenty-nine sampling points were designated in the tested areas