2024 No Multi-route exposure sampling of quaternary ammonium compounds and ethanol surface disinfectants in a K-8 school https://onlinelibrary.wiley.com/doi/10.1111/ina.13036 Boles, Corey North America Review Observational Teachers Staff Students Elementary (K-5) Middle/Jr High (6-8) Temperature Humidity Disinfection Ethanol Exposure Health effects QACS School In a K-8 Ohio school, air and surface sampling showed low exposure to ethanol and QACs from disinfectants. Bioburden was reduced effectively, and airborne levels remained below health benchmarks. Findings suggest minimal health risk with proper use. 2022