Table 2.
Kruskal-Wallis test results of the chemical parameters among grouping variables (lockdown and unlock periods)
| Statistic value | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | PM10 | NO | NO2 | NH3 | Ozone | Benzene | Toluene | SO2 | CO | AQI | WS | AT | RH | RF | |
| μg/m3 | mg/m3 | m/s | C | % | mm | ||||||||||
| H statistics | 95.73 | 101.3 | 68.50 | 74.23 | 68.07 | 79.17 | 76.45 | 55.54 | 67.08 | 101 | 79.34 | 75 | 99.5 | 70.6 | 29.79 |
| Asymp. Sig. | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Groupingvariables: lockdown (LD1, LD2, LD3, LD4) and unlock (UL1, UL2) periods; values < 0.05 for the asymp. sig. (2-tailed) is significantly different between groups