6. Conclusion

Knowledge of the nature and concentrations of indoor air pollutants has been refined over time, thanks to national and international measurement campaigns in different types of indoor environments (housing, schools, nurseries, offices, transport, public places, etc.), as well as studies carried out in response to reports of discomfort and health problems in enclosed spaces. In addition, the development of low-cost microsensors has enabled us to better understand the dynamics of indoor air pollutants, exposure levels within buildings and the role of pollutant-emitting activities and ventilation practices. Although we have a number of high-performance measurement tools at our disposal, some of them still require further study and development to improve their reliability and for more accurate detection of certain volatile chemical compounds. The extreme diversity of indoor air pollutants, whether...