COVID-19 Prevention and Air Pollution in the Absence of a Lockdown

Hung-Hao Chang, Chad Meyerhoefer and Feng-An Yang

No 27604, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: Recent studies demonstrate that air quality improved during the coronavirus pandemic due to the imposition of social lockdowns. We investigate the impact of COVID-19 on air pollution in the two largest cities in Taiwan, which were not subject to economic or mobility restrictions. Using a generalized difference-in-differences approach and real-time data on air quality and transportation, we estimate that levels of sulfur dioxide, nitrogen dioxide and particulate matter increased 5 - 12 percent relative to 2017 - 2019. We demonstrate that this counterintuitive finding is likely due to a shift in preferences for mode of transport away from public transportation and towards personal automobiles. Similar COVID-19 prevention behaviors in regions or countries emerging from lockdowns could likewise result in an increase in air pollution.

JEL-codes: I12 Q53 (search for similar items in EconPapers)
Date: 2020-07
New Economics Papers: this item is included in nep-ene, nep-env, nep-tre and nep-ure
Note: EEE EH
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Citations: View citations in EconPapers (5)

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