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September 16, 2025

Long-term exposure to air pollution and cognitive aging: Findings from a United States cohort of older adults.

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Authors

SISindana D. IlangoUniversity of WashingtonCAClaire E. AdamUniversity of MontanaXHXinmei HuangUniversity of Washington

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Overview

Observational analysis links higher air pollution levels to poorer cognitive performance in older adults, suggesting implications for Alzheimer's disease risk.

Key Points

  • Exposure to higher concentrations of air pollution is linked to worse cognitive performance at baseline, but not to accelerated cognitive decline over time.
  • Cohort analysis included 3044 older adults, with fine particulate matter associated with slight performance deficits across multiple cognitive domains.
  • Statistical methods used included linear mixed regression models to estimate cognitive trajectories across varying air pollution levels.
  • Findings indicate the potential need for public health interventions to reduce air pollution exposure among the aging population.

Cite This Study

Ilango et al. (2025) studied this question.

synapsesocial.com/papers/68c93fe601120bef803bb0e9https://doi.org/10.1177/13872877251373050
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Air pollution and cognitive outcomes in older adults: a systematic review2026
  2. 2Exposure to ambient air pollution and cognitive function: an analysis of the English Longitudinal Study of Ageing cohort2024 · 5 citations
  3. 3Association of Exposure to Ambient Air Pollutants With Cognitive Performance and Dementia Risk and the Mediating Role of Pulmonary Function: Evidence From the UK Biobank2024 · 11 citations
  4. 4AIR POLLUTION AND ACCELERATED COGNITIVE DECLINE: IMPLICATIONS FOR ALZHEIMER'S DISEASE PROGRESSION A SYSTEMATIC REVIEW (2020–2025)2026
  5. 5Air pollution and cognitive function: the potential protective effect of physical activity2025