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Overall characteristics of environmental factors in Seongbuk-Gu, Korea (August–December 2008, April–December 2009, and March–August 2010).
| Mean ± SD | Median | Range | IQR | |||||
|---|---|---|---|---|---|---|---|---|
| Mean temperature (°C) | 17.3 ± 8.1 | 19.4 | –7.2–29.2 | 14.0 | ||||
| Rainfall (mm) | 6.9 ± 17.8 | 0.5 | 0–113.5 | 6.8 | ||||
| Mean PM10 (µg/m3) | 43.7 ± 23.7 | 40.8 | 7.4–151.3 | 24.2 | ||||
| Mean SO2 (ppb) | 4 ± 2.2 | 3.5 | 1–17.5 | 2.3 | ||||
| Mean NO2 (ppb) | 36.2 ± 12.1 | 34.8 | 9.8–77.3 | 15.0 | ||||
| Maximum CO (10 ppm) | 7.9 ± 4.3 | 7.0 | 3–27 | 4.0 | ||||
| Maximum O3 (ppb) | 48.1 ± 27 | 44.0 | 2–140 | 37.0 |
