Table 3.
Average levels of PM fractions (μg/m3) measured during occupancy periods (N = 48); (I) - Older, (II) - Younger children classrooms.
| Location | Concentration, μg/m3 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indoor | Outdoor | |||||||||||||
| PM1 | SD | PM2.5 | SD | PM10 | SD | TSP | SD | PM2.5 | SD | PM10 | SD | |||
| SU-1 (I) | 51.21 | 25.34 | 70.59 | 30.71 | 117.57 | 42.04 | 134.43 | 46.12 | 35.73 | 15.49 | 36.71 | 16.96 | ||
| SU-1 (II) | 25.97 | 12.85 | 41.17 | 17.91 | 68.26 | 24.41 | 73.05 | 25.06 | 42.55 | 18.45 | 45.37 | 20.96 | ||
| PU-2 (I) | 78.89 | 39.04 | 106.06 | 46.14 | 149.81 | 53.57 | 163.81 | 56.20 | 64.72 | 28.07 | 70.26 | 32.46 | ||
| PU-2 (II) | 33.70 | 16.67 | 49.06 | 21.34 | 79.92 | 28.58 | 96.78 | 33.20 | 21.88 | 9.49 | 22.20 | 10.26 | ||
| PR-3 (I) | 83.64 | 23.52 | 102.05 | 27.54 | 135.93 | 41.02 | 147.54 | 42.25 | 44.43 | 17.21 | 49.04 | 17.07 | ||
| PR-3 (II) | 78.13 | 21.97 | 80.94 | 21.84 | 104.90 | 31.66 | 124.24 | 35.58 | 88.30 | 34.20 | 92.17 | 32.08 | ||
| SR-4 (I) | 102.11 | 28.71 | 125.69 | 33.92 | 166.12 | 50.13 | 184.24 | 52.76 | 38.04 | 14.74 | 43.81 | 15.25 | ||
| SR-4 (II) | 49.04 | 13.79 | 67.65 | 18.26 | 81.49 | 24.59 | 91.19 | 26.11 | 60.77 | 23.54 | 74.18 | 25.82 | ||
| Urban | 47.44 | 23.47 | 66.72 | 29.02 | 103.89 | 37.15 | 117.02 | 40.14 | 41.22 | 17.87 | 43.63 | 20.16 | ||
| Rural | 78.23 | 22.00 | 94.08 | 25.39 | 122.11 | 36.85 | 136.80 | 39.17 | 57.88 | 22.42 | 64.80 | 22.55 | ||
| (I) | 78.96 | 21.04 | 101.10 | 22.81 | 142.36 | 20.62 | 157.50 | 21.50 | 45.73 | 13.19 | 49.96 | 14.45 | ||
| (II) | 46.71 | 23.04 | 59.70 | 17.99 | 83.64 | 15.35 | 96.32 | 21.19 | 53.37 | 28.19 | 58.48 | 30.93 | ||