Mean benzene concentration (μg/m3), standard deviation (SD), minimum (Min), and maximum (Max) values, and mean toluene/benzene (t/b) ratio in Cornigliano and Rivarolo districts
| Area | Floors | Mean | SD | Min | Max | t/b |
|---|---|---|---|---|---|---|
| Cornigliano | High | 10.3 | 4.8 | 2.8 | 20.5 | 1.0±0.7 |
| Low | 10.6 | 5.9 | 3.8 | 22.4 | 1.7±1.3 | |
| Rivarolo | High | 4.4 | 2.2 | 1.9 | 9.6 | 2.4±0.7 |
| Low | 4.4 | 2.2 | 2.5 | 10.5 | 2.8±1.2 |