Table 12.
Heterogeneity test of PM2.5 based on the quantile regression.
| Variables | Quantiles |
||||
|---|---|---|---|---|---|
| 10% | 25% | 50% | 75% | 90% | |
| −0.090* (0.047) | −0.081** (0.034) | −0.071*** (0.025) | −0.057* (0.033) | −0.045 (0.052) | |
| InduStru | 0.007 (0.008) | 0.020*** (0.006) | 0.037*** (0.004) | 0.057*** (0.006) | 0.077*** (0.009) |
| Econ | −0.178 (0.136) | −0.270*** (0.071) | −0.383*** (0.075) | −0.525*** (0.097) | −0.663*** (0.152) |
| Sci | −0.025 (0.016) | −0.027** (0.011) | −0.030*** (0.008) | −0.033*** (0.011) | −0.036** (0.017) |
| Edu | −0.080 (0.052) | −0.082** (0.038) | −0.084*** (0.028) | −0.086** (0.037) | −0.089 (0.058) |
| Invest | −0.001 (0.014) | −0.001 (0.011) | −0.004 (0.008) | −0.008 (0.010) | −0.011 (0.016) |
| Temp | 0.095 (0.098) | 0.115 (0.072) | 0.139*** (0.053) | 0.170** (0.069) | 0.199* (0.109) |
| Wind | 0.004 (0.017) | −0.003 (0.013) | −0.012 (0.009) | −0.023** (0.012) | −0.034* (0.019) |
| Hum | −0.006 (0.069) | 0.001 (0.051) | 0.010 (0.038) | 0.021 (0.049) | 0.032 (0.077) |
| year fixed effects | YES | YES | YES | YES | YES |
| N | 2625 | 2625 | 2625 | 2625 | 2625 |
***p < 0.01, **p < 0.05, *p < 0.1.