Identifying the K-12 classrooms' indoor air quality factors that affect student academic performance

The objective of this study was to investigate associations between indoor air quality (IAQ) in K-12 classrooms and student academic performance. During the years 2015–2017, various IAQ factors 220 US were measured seasonally, excluding summer. Measurements taken during occupied unoccupied times several within each school. Occupied measurements included carbon dioxide (CO2) formaldehyde concentrations, fine coarse particle counts. Unoccupied consisted ozone (O3), monoxide (CO), nitrogen (NO2), total volatile organic compounds (TVOCs) concentrations. Ventilation rates estimated using CO2 In addition data, classroom aggregated achievement scores demographic information collected from participating school districts. Demographic data percentage free reduced lunch recipients (PFRL), high-performance students (PGIF), special education (PSPED). A multivariate linear regression analysis used as controls. results revealed ventilation system type, rates, counts, O3 CO This research provides valuable districts design engineers, enabling them environments for improved