Table 2.
City-level statistical summary of PM2.5 levels in terms of mean value, 1st quartile (1st Q), and 3rd quartile (3rd Q) at each of the different periods (normal, minor and major lockdown) considered for the analysis
| Spanish city | Normal period | Minor lockdown | Major lockdown | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | 1st Q | 3rd Q | Mean | 1st Q | 3rd Q | Mean | 1st Q | 3rd Q | |
| Bilbao | 9.13 | 6.00 | 12.50 | 13.93 | 11.00 | 17.00 | 8.14 | 6.25 | 9.75 |
| Madrid | 11.51 | 6.00 | 14.00 | 6.60 | 4.50 | 8.50 | 7.00 | 5.00 | 9.00 |
| San Sebastián | 8.95 | 6.00 | 11.00 | 13.17 | 10.75 | 15.50 | 8.64 | 7.00 | 10.00 |
| Santiago de Compostela | 12.64 | 8.20 | 17.00 | 15.18 | 13.00 | 18.00 | 9.01 | 7.23 | 9.85 |
| Valladolid | 11.30 | 6.50 | 15.00 | 11.40 | 8.50 | 13.00 | 6.14 | 5.00 | 7.00 |
| Vigo | 9.11 | 6.45 | 12.00 | 11.93 | 9.20 | 13.50 | 6.21 | 5.00 | 6.78 |
| Vitoria | 7.33 | 4.25 | 10.00 | 10.87 | 9.00 | 13.50 | 6.36 | 4.50 | 7.00 |