2019 Yes https://www.mdpi.com/1660-4601/15/7/1497 Finell, Eerika Europe Exposure Study Teachers Students Middle/Jr High (6-8) High School (9-12) Indoor air problems Indoor air quality Psychosocial problems Socioemotional difficulties Indoor air-related symptoms Teacher–student relations Lower secondary schools Increased socioemotional difficulties were related to more IA-related symptoms (standardized beta = 0.20) and deteriorated subjective IAQ (standardized beta = 0.20). Increased problems in teacher–student relations were related to deteriorated subjective IAQ (standardized beta = 0.21). Although students’ psychosocial problems explained only 9–13% of the total variances, our findings support the notion that psychosocial factors also need to be taken into account in the evaluation of IAQ and the prevalence of IA-related symptoms in schools.