Air Quality: How Has the Contribution of Wood Heating to PM2.5 Concentrations Changed? 

In 2024, the CÉRIC Laboratory published the expert opinion titled “Air Quality: What Is the Contribution of Residential Wood Heating to PM2.5 Emissions?” It found that winter activities, including domestic wood heating, contributed only 22.4% to fine particle concentrations (i.e., those actually present in the air and inhaled), well below the 64% figure regularly reported.

In 2026, again based on an analysis of data from 89 air monitoring stations across mainland France, the CÉRIC Laboratory published an update demonstrating a continuous decline in fine particle emissions linked to wood heating, despite a growing number of wood-burning heating appliances.