. 2020 Aug 13;279:123622. doi: 10.1016/j.jclepro.2020.123622

Appendix Table 6.

The Impact Caused by Private Vehicles Restriction and Suspension of Public Transport on Air Pollution in Different Provinces

	AQI	PM_2.5	PM₁₀	CO	NO₂	SO₂	O₃
	(1)	(2)	(3)	(4)	(5)	(6)	(7)
Panel A: Hubei
Private vehicle restriction	−0.135∗∗	−0.230∗∗∗	−0.171∗∗∗	0.042	0.005	−0.170∗	−0.030
	(0.063)	(0.077)	(0.059)	(0.048)	(0.079)	(0.091)	(0.057)
R²	0.725	0.774	0.788	0.540	0.698	0.395	0.868
Observations	1710	1710	1710	1710	1710	1710	1710
Suspension of Public Transport	−0.359∗∗∗	−0.414∗∗∗	−0.270∗∗∗	−0.141∗∗∗	−0.240∗∗∗	−0.411∗∗∗	0.004
	(0.065)	(0.080)	(0.062)	(0.050)	(0.082)	(0.094)	(0.060)
R²	0.729	0.776	0.781	0.542	0.700	0.401	0.868
Observations	1710	1710	1710	1710	1710	1710	1710
Panel B: Henan
Private vehicle restriction	−0.006	0.021	0.065∗∗∗	0.051∗∗∗	0.071∗∗∗	−0.004	0.036∗∗∗
	(0.015)	(0.019)	(0.018)	(0.017)	(0.016)	(0.024)	(0.012)
R²	0.792	0.821	0.789	0.549	0.710	0.324	0.869
Observations	2278	2278	2278	2278	2278	2278	2278
Suspension of Public Transport	−0.044	−0.053	−0.057	−0.183∗∗∗	−0.136∗∗∗	−0.180∗∗∗	−0.001
	(0.040)	(0.050)	(0.043)	(0.045)	(0.042)	(0.064)	(0.033)
R²	0.792	0.821	0.781	0.583	0.709	0.327	0.869
Observations	2278	2278	2278	2278	2278	2278	2278
Panel C: Guangdong
Private vehicle restriction	0.047∗∗∗	0.096∗∗∗	0.111∗∗∗	0.169∗∗∗	0.311∗∗∗	0.051∗∗	−0.032∗∗
	(0.014)	(0.018)	(0.016)	(0.010)	(0.024)	(0.020)	(0.014)
R²	0.716	0.723	0.769	0.509	0.525	0.385	0.664
Observations	3420	3420	3420	3420	3420	3420	3420
Panel D: Zhejiang
Private vehicle restriction	0.043∗∗∗	0.074∗∗∗	0.029	0.080∗∗∗	0.290∗∗∗	0.168∗∗∗	0.013
	(0.015)	(0.023)	(0.018)	(0.012)	(0.020)	(0.016)	(0.015)
R²	0.730	0.703	0.770	0.590	0.738	0.495	0.799
Observations	1899	1899	1899	1899	1899	1899	1899
Suspension of Public Transport	−0.015	−0.026	0.016	−0.005	−0.400∗∗∗	−0.369∗∗∗	0.001
	(0.058)	(0.088)	(0.070)	(0.047)	(0.081)	(0.063)	(0.058)
R²	0.729	0.702	0.757	0.547	0.710	0.474	0.798
Observations	1899	1899	1899	1899	1899	1899	1899

Notes: Robust standard errors are reported in parentheses. All specifications control for city and day fixed effects and do not include other control variables.∗, ∗∗, and ∗∗∗ indicate significance levels at 10%, 5%, and 1%, respectively.