AI Article Synopsis
- Air pollution exposure is often assessed based on where individuals live, neglecting the impact of their daily movements outside their homes.
- A study involving 41 older adults in the Netherlands compared personal exposure measurements to home-based and mobility-based air pollution assessments.
- Results showed that mobility-based assessments provided significantly better agreement with actual personal exposure measurements for particulate matter and black carbon, indicating that incorporating mobility data leads to more accurate air pollution estimates.
Article Abstract
Air pollution exposure is typically assessed at the front door where people live in large-scale epidemiological studies, overlooking individuals' daily mobility out-of-home. However, there is limited evidence that incorporating mobility data into personal air pollution assessment improves exposure assessment compared to home-based assessments. This study aimed to compare the agreement between mobility-based and home-based assessments with personal exposure measurements. We measured repeatedly particulate matter (PM) and black carbon (BC) using a sample of 41 older adults in the Netherlands. In total, 104 valid 24 h average personal measurements were collected. Home-based exposures were estimated by combining participants' home locations and temporal-adjusted air pollution maps. Mobility-based estimates of air pollution were computed based on smartphone-based tracking data, temporal-adjusted air pollution maps, indoor-outdoor penetration, and travel mode adjustment. Intraclass correlation coefficients (ICC) revealed that mobility-based estimates significantly improved agreement with personal measurements compared to home-based assessments. For PM, agreement increased by 64% (ICC: 0.39-0.64), and for BC, it increased by 21% (ICC: 0.43-0.52). Our findings suggest that adjusting for indoor-outdoor pollutant ratios in mobility-based assessments can provide more valid estimates of air pollution than the commonly used home-based assessments, with no added value observed from travel mode adjustments.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11191597 | PMC |
| http://dx.doi.org/10.1021/acs.est.3c10867 | DOI Listing |
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