Have vehicle registration restrictions improved urban air quality in Japan?

Vol: 
1904
Author name: 
Nishitateno, S
Burke, P.J
Year: 
2019
Month: 
November
Abstract: 

About 2.6 million non-compliant vehicles were removed from designated metropolitan areas in Japan after the introduction of vehicle registration restrictions under the 1992 Automobile NOx Control Law. Based on a difference-in-differences framework and using a monitor-level panel dataset for the period January 1981–December 2015, we find that the intervention led to a 3–6% reduction in the monthly mean ambient concentration of nitrogen dioxide (NO2) in the treated areas. Back-of-the-envelope calculations identify benefits equal to about US$104 million as a result of reduced mortality from asthma.

Publication file: 

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