| Mean | SD | Min | 5% | Median | 95% | Max | IQR |
---|
PM10(μg/m3) | 90.7 | 20.0 | 31.0 | 44.1 | 93.5 | 117.8 | 150.0 | 24.0 |
SO2(μg/m3) | 30.4 | 15.3 | 8.0 | 11.6 | 29.0 | 56.9 | 95.0 | 19.0 |
NO2(μg/m3) | 25.2 | 12.1 | 3.0 | 9.0 | 23.0 | 54.0 | 60.0 | 16.0 |
- Ambient air quality standards set by Ministry of Ecology and Environment of the people’s Republic of China [27]
- PM10 ≤ 70 μg/m3 (annual), NO2 ≤ 40 μg/m3 (annual), SO2 ≤ 60 μg/m3 (annual)
- PM10, particulate matter with aerodynamic diameter of ≤10 μm; SO2, sulfur dioxide; NO2, nitrogen dioxide; SD, standard deviation; Min, minimum; Max, maximum; 5%, IQR, interquartile rang