Pollutants (µg/m3) | Mean | SD | Min | P25 | Median | P75 | Max | IQR |
---|---|---|---|---|---|---|---|---|
PM2.5 | 53.4 | 23.0 | 13.4 | 35.6 | 48.0 | 70.3 | 116.5 | 34.6 |
\({\text{SO}}_4^{2-}\) | 9.9 | 3.9 | 3.2 | 6.6 | 9.0 | 13.0 | 21.3 | 6.3 |
\({\text{NO}}_3^{-}\) | 10.8 | 5.4 | 2.0 | 6.4 | 9.6 | 15.0 | 26.1 | 8.6 |
\({\text{NH}}_4^{+}\) | 7.5 | 3.4 | 1.8 | 4.7 | 6.9 | 10.1 | 17.3 | 5.4 |
BC | 2.6 | 0.9 | 1.0 | 1.9 | 2.4 | 3.2 | 5.7 | 1.3 |
OM | 13.1 | 5.3 | 5.3 | 9.1 | 11.7 | 16.7 | 32.2 | 7.6 |