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Air Pollution Is Associated with Poor Cognitive Function in Taiwanese Adults
Meng-Chieh Chen1, Chen-Feng Wang2, Bo-Cheng Lai2
1Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
Summary
Air pollution, including PM2.5 and NO2, is linked to cognitive decline. However, ozone (O3) may offer protection, suggesting targeted air quality policies are needed to safeguard brain health.
Area of Science:
- Environmental Health
- Neuroscience
- Public Health
Background:
- Growing global concern over air pollution's impact on health.
- Emerging evidence links air pollution exposure to cognitive decline.
Purpose of the Study:
- To investigate the association between specific air pollutants and cognitive function.
- Utilize the Mini-Mental State Exam (MMSE) and its sub-domains to assess cognitive impairment.
Main Methods:
- Analysis of Taiwan Biobank data integrated with daily air pollution measurements.
- Multivariable linear regression to identify significant relationships between pollutants and MMSE scores.
Main Results:
- High PM2.5, PM10, CO, SO2, NO, NO2, and NOx were associated with lower total MMSE scores.
- Low O3 was linked to reduced scores in specific cognitive domains (G1, G4, G5).
- Ozone (O3) emerged as a potential protective factor against cognitive decline.
Conclusions:
- Exposure to various air pollutants negatively impacts general cognitive function and specific cognitive domains.
- Ozone may have a protective effect, highlighting its importance in air quality regulation.
- Findings support the development of targeted policies to mitigate air pollution's cognitive effects.
