TracMyAir smartphone application for modeling exposures to PM_2.5 and ozone - Integration with air quality networks and location-activity sensors.

ABSTRACT: Epidemiologic studies of ambient fine particulate matter (PM_2.5) and ozone (O₃) often use outdoor concentrations from central-site monitors or air quality model estimates as exposure surrogates, which can result in exposure errors. We previously developed an exposure model called TracMyAir, which is an iPhone application that determines seven tiers of individual-level exposure metrics for ambient PM_2.5 and O₃ using outdoor concentrations, home building characteristics, weather, time-activities. The exposure metrics with increasing information needs and complexity include: outdoor concentration (C_out, Tier 1), building infiltration factor (F_inf, Tier 2), indoor concentration (C_in, Tier 3), time spent in microenviro

SUBMITTER: Breen M 

PROVIDER: S-EPMC12070289 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature