Table 1 Average TVOC concentrations measured in various rooms during the day (8:00–18:00) and night (18:00–8:00)
Room | Area (m2) | No of samples | TVOC concentration average ± SD (μg/m3) | |
|---|---|---|---|---|
Daytime | Nighttime | |||
Lecture room | 54 | 4 | 100 ± 29 | 197 ± 107 |
Seminar room | 18 | 11 | 287 ± 152 | 511 ± 172 |
Laboratory-1 (chemical and biological) | 120 | 11 | 219 ± 89 | 538 ± 306 |
Laboratory-2 (engineering) | 90 | 5 | 171 ± 151 | 240 ± 265 |
Laboratory-3 (ergonomics) | 120 | 3 | 187 ± 5 | 218 ± 70 |
Computer room | 276 | 6 | 140 ± 70 | 113 ± 94 |
Library | 2,480 | 6 | 174 ± 71 | 204 ± 50 |