Table 2.
Distribution of ambient and indoor PRγ, BC, PM2.5, and meteorology.
| N | Mean | Std Dev | Range Min-Max | IQR | |
|---|---|---|---|---|---|
| Indoor 7-day average | |||||
| PRγ 3 | 334 | 0.7 | 19.5 | −81.8– 74.3 | 26.4 |
| PRγ 4 | 333 | 0.3 | 5.0 | −24.2–17.9 | 6.3 |
| PRγ 5 | 333 | 0.5 | 7.0 | −28.5–22.1 | 9.6 |
| PRγ 6 | 334 | 0.07 | 2.3 | −12–7.8 | 2.3 |
| PRγ 7 | 334 | 0.2 | 4.1 | −17.3–12.5 | 4.1 |
| PRγ 8 | 334 | −0.031 | 4.64 | −56.3–22.8 | 6.7 |
| PRγ 9 | 334 | 0.001 | 0.57 | −7.2–1.95 | 0.5 |
| BC | 334 | 0.2 | 0.3 | −0.4–2.8 | 0.2 |
| PM2.5 | 334 | 8.5 | 6.3 | 0.2–45.8 | 5.6 |
| T(°C) | 334 | 11 | 9.6 | −12–28 | 14.5 |
| RH (%) | 334 | 66.4 | 16 | 30–97 | 25.2 |
| Ambient 7-day average | |||||
| PRγ 3 | 342 | 1.3 | 27.1 | −106.7–91.1 | 41.6 |
| PRγ 4 | 342 | 0.5 | 6.9 | − 28.9–23.4 | 9.4 |
| PRγ 5 | 342 | 0.5 | 7.0 | −28.5–22.2 | 9.6 |
| PRγ 6 | 342 | 0.1 | 3.4 | −16.5–8.8 | 3.5 |
| PRγ 7 | 342 | 0.3 | 5.7 | −23.6–12.8 | 6.6 |
| PRγ 8 | 342 | 0.4 | 8.6 | −23.3–18.9 | 10.3 |
| PRγ 9 | 342 | 0.03 | 0.6 | −2.4–1.95 | 0.8 |
| BC | 342 | 0.5 | 0.2 | 0.2–1.4 | 0.3 |
| PM2.5 | 342 | 6.3 | 2.0 | 3.0–13.4 | 2.7 |
| T(°C) | 342 | 11.2 | 9.6 | −12.2–28.0 | 15.4 |
| RH (%) | 342 | 66.4 | 15.7 | 30.7–97.0 | 26.6 |
Definitions of abbreviations: ambient and indoor PRγi (i = γ3 to γ9) on the 7-day moving average (CPMγ); 24hr-weekly BC and 24 hr-weekly PM2.5 (μg/m3); T – temperature in °C; RH – Relative humidity (%)- on the day of examination (0).