ArticlemedRxiv : the preprint server for health sciences2025
Ambient Air Pollution and Smell Function: Evidence from the National Geographic Smell Survey.
Article in medRxiv : the preprint server for health sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
Funding
Abstract
Background: Olfactory sensory neurons are located outside the brain, allowing them to detect environmental chemicals. However, this comes at the cost of exposure to potential toxins, which may decrease olfactory function. Methods: We sought to assess the association between olfactory function and air pollution, measured by the National Geographic Smell Survey and data from the Environmental Protection Agency. We examined the effects of air pollution exposure on perceived odor intensity and identification ability across 97,087 survey respondents assigned air pollution exposures at the zip code level. Results: The results show that NO Conclusions: Air quality is associated with olfactory health, underscoring the need to investigate the mechanisms driving pollution-induced impairment.
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