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Artificially event time
| AQI | PM2.5 | PM10 | SO2 | CO | NO2 | O3 | |
|---|---|---|---|---|---|---|---|
| Ea |
− 7.8147 (5.3715) |
− 5.6017** (2.4622) |
− 4.6862 (4.6436) |
0.3989 (0.9467) |
− 0.0980** (0.0402) |
1.8711 (2.8919) |
− 8.1971 (7.8519) |
| N | 627 | 627 | 627 | 627 | 627 | 627 | 627 |
| R2 | 0.3787 | 0.1945 | 0.2120 | 0.1229 | 0.1809 | 0.4253 | 0.6080 |
Note: *, **, and *** respectively indicate significance levels of 10%, 5%, 1%. The data of Chengdu is deleted here
