Table 2.
Previous-day community-level and personal exposure to air pollutants, temperature, and humidity among 30 participants
| Exposure | n (obs) | Median | 25th Percentile | 75th Percentile | IQR |
|---|---|---|---|---|---|
| PM2.5, μg/m3 | |||||
| Community-level | 3,314 | 6.0 | 4.4 | 7.9 | 3.6 |
| Personal | 2,803 | 8.8 | 7.5 | 11.3 | 3.8 |
| NO2, ppb | |||||
| Community-level | 3,314 | 7.1 | 5.1 | 9.7 | 4.6 |
| Personal | 2,803 | 6.8 | 3.8 | 8.9 | 5.1 |
| O3, ppb | |||||
| Community-level | 3,297 | 26.3 | 20.5 | 32.4 | 11.8 |
| Personal | 2,803 | 9.6 | 7.3 | 12.5 | 5.2 |
| Temperature, °C | |||||
| Community-level | 3,314 | 12.5 | 4.3 | 20.2 | 15.9 |
| Personal | 2,803 | 21.7 | 20.3 | 22.9 | 2.6 |
| Humidity, % | |||||
| Community-level | 3,314 | 65.9 | 54.9 | 78.4 | 23.5 |
| Personal | 2,803 | 41.9 | 30.4 | 53.2 | 22.7 |
Definition of abbreviations: IQR = interquartile range; n (obs) = number of observations; NO2 = nitrogen dioxide; O3 = ozone; PM2.5 = particulate matter ⩽2.5 μm in aerodynamic diameter; ppb = parts per billion.