Table 3.
Level of pollutants in schools.
| Parameter | Mean ± SD | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Classroom | School yard | Classroom School Yard | ||||||||
| School A | School B | School C | School D | School A | School B | School C | School D | (n=4) | (n=4) | |
| PM2.5 (mg m-3) | 0.095 | 0.128 | 0.175 | 0.103 | 0.092 | 0.109 | 0.095 | 0.065 | 0.125±0.036 | 0.090±0.018 |
| NO2 (μg m-3) | 62.54 | 24.5 | 12.37 | 46.05 | 23.72 | 4.33 | 2.87 | 46.05 | 36.37±22.33 | 19.24±20.24 |
| Humidity (%) | 73.5 | 71.43 | 77.03 | 76.77 | 69.53 | 56.83 | 68.77 | 72.73 | 75.24±2.65 | 68.73±7.21 |
| Temperature (°C) | 31.57 | 31.00 | 30.37 | 30.63 | 32.23 | 37.10 | 34.87 | 32.17 | 30.74±0.57 | 33.36±2.62 |