| VARIABLES | visit | visit | visit |
| AQI | 0.0011 | 0.0009 | 0.0007 |
|
| (0.001) | (0.001) | (0.001) |
| AQI*No Primary School | 0.0019*** |
|
|
|
| (0.001) |
|
|
| AQI*Elementary School |
| 0.002*** |
|
|
|
| (0.000) |
|
| AQI*High School |
|
| 0.0013** |
|
|
|
| (0.001) |
| Constant | −1.160*** | −1.1644*** | −1.165*** |
|
| (0.065) | (0.065) | (0.065) |
| Observations | 10,806 | 10,806 | 10,806 |
| Number of ID | 5437 | 5437 | 5437 |