Journal
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS
Volume 104, Issue 1, Pages 190-208Publisher
WILEY
DOI: 10.1111/ajae.12225
Keywords
air pollution; climate change; cognitive functions; straw burning; I18; Q15; Q53
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The study found that PM2.5 emissions from straw burning in China have a negative impact on cognitive functions of respondents aged 55 and above, but this impact is temporary and caused only by contemporaneous PM2.5 emissions on the day of cognitive testing.
This study examines the impact of air pollution from straw burning on human cognitive health in China by linking household health surveys with PM2.5 emissions derived from remote sensing data on fire activity. The identification strategy leverages the spatial dispersion of air pollutants due to exogenous wind directions. The results indicate that PM2.5 emissions from upwind straw burning have a negative impact on cognitive functions of respondents aged 55 and above, but PM2.5 emissions from downwind fires do not. The impact is transitory and caused by contemporaneous PM2.5 emissions on the day of cognitive testing. Our findings demonstrate a link from air pollution to cognitive declines and suggest that through this link, climate change could result in additional health costs by increasing the risk of wildfires.
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