Unwatched Pollution: The Effect of Intermittent Monitoring on Air Quality

Intermittent monitoring of environmental standards may induce strategic changes in polluting activities. This paper documents local strategic responses to a cyclical, once-every-six-day air quality monitoring schedule under the federal Clean Air Act. Using satellite data of monitored areas, I show t...

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Bibliographic Details
Published in:The American economic review 2021-07, Vol.111 (7), p.2101-2126
Main Author: Zou, Eric Yongchen
Format: Article
Language:English
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Summary:Intermittent monitoring of environmental standards may induce strategic changes in polluting activities. This paper documents local strategic responses to a cyclical, once-every-six-day air quality monitoring schedule under the federal Clean Air Act. Using satellite data of monitored areas, I show that air quality is significantly worse on unmonitored days. This effect is explained by short-term suppression of pollution on monitored days, especially during high-pollution periods when the city’s noncompliance risk is high. Cities’ use of air quality warnings increases on monitored days, which suggests local governments’ role in coordinating emission reductions.
ISSN:0002-8282
1944-7981
DOI:10.1257/aer.20181346