2024 No Exposure of school children to particulate matter and inorganic gaseous pollutants in Hawassa city, Ethiopia https://doi.org/10.1007/s10661-024-13417-0 Amare, Abebech Nuguse Africa Exposure Observational Students Elementary (K-5) Particulate Matter (PM) Nitrogen Dioxide Carbon Monoxide Sulfur Dioxide Other Air quality Ethiopia Inorganic gaseous pollutants particulate matter Primary schools Using portable monitors, this study measured PM₂.₅, PM₁₀, NO₂, CO, and SO₂ levels in Hawassa, Ethiopia primary schools. Results showed exceedances of WHO limits, poor AQI ratings, and elevated hazard quotients, particularly near busy roads, underscoring widespread air pollution risks. 2024