Table 2.
Annual average ± standard deviation (SD) and number of exceedances of the daily limit value of PM10 registered by monitoring station in the cities involved in the study.
| Cities | Stations | Annual Average ± SD (µg/m3) | Excesess Daily Limit 1 (n) | ||
|---|---|---|---|---|---|
| 2014 | 2015 | 2014 | 2015 | ||
| Torino | Consolata | 34.72 ± 22.18 * | 40.03 ± 28.05 * | 75 | 93 |
| Rubino | 31.27 ± 22.38 * | 36.49 ± 27.04 * | 58 | 84 | |
| Rebaudengo | 38.53 ± 24.80 * | 41.26 ± 25.30 * | 94 | 99 | |
| Druento-La Mandria | 19.75 ± 14.80 | 23.58 ± 16.20 | 12 | 26 | |
| Perugia | Parco Cortonese | 21.17 ± 12.33 * | 27.75 ± 15.40 * | 12 | 34 |
| Fontivegge | 20.46 ± 12.43 * | 22.33 ± 14.67 | 14 | 32 | |
| Torgiano-Brufa | 16.38 ± 10.24 | 23.77 ±15.11 | 4 | 19 | |
| Lecce | Garigliano | 22.03 ± 10.85 * | 23.22 ± 11.54 | 9 | 7 |
| Libertini | 23.48 ± 13.19 * | 25.37 ± 11.81 | 11 | 8 | |
| S.M. Cerrate | 20.48 ± 10.19 | 26.85 ± 12.27 | 6 | 7 | |
1 Daily limit of 50 µg/m3 set in the Directive 2008/50/EC [28]; * level of PM10 significantly different (p < 0.01) than in background station.