2022 No https://onlinelibrary.wiley.com/doi/10.1111/ina.13068 Sahin Asia Review Temperature Humidity Carbon Dioxide (CO2) Particulate Matter (PM) Respiratory symptoms Dust transport Excess risk Indoor air quality Indoor environmental quality Particulate matter (PM) Primary schools The median CO2 concentration was measured to be >1000 ppm in all seasons/schools. Temperature and RH fell out of the comfort zone in October-December, during which pollutant concentrations were considerably increased, specifically in November, that heading and dust transport periods coincide. Overall mean indoor PM10 and PM2.5 levels were 58 and 31.8 ug/m^3, respectively. Risk assessment indicate that both short (incidence of asthma symptoms in asthmatic children) and long-term (prevalence of bronchitis) effects are considerable with 10.9 (2.4 - 19.6)% and 19.5 (2.2 - 38.8)% respectively.