The Indoor Air Quality Observatory (OQAI): a unique project to understand air pollution in our living spaces

Over the past 10 years, indoor air quality has become a major component of environmental health. In France, the Indoor Air Quality Observatory (OQAI) runs national campaigns to measure indoor air pollution in homes, schools, office spaces and health care or medical-social establishments. After presenting the pollutants concerned and their health effects, this article summarizes the main outcomes of the OQAI’s national campaigns in three types of environments: dwellings, classrooms and offices. It then focuses more specifically on the relationships between indoor air quality and energy performance, as making the building envelope more airtight to reduce energy loss can lead to reduced air exchange, resulting in a deterioration in indoor air quality. Although further research is necessary to improve our understanding of the airborne substances present in buildings and of their health effects, there are already good practices and tools that can be implemented to improve indoor air quality in our living spaces