Developing a combined mapping representation of air and noise pollutions

Airparif and Bruitparif, observatories for air and noise pollutions in the Ile-de-France region, have worked together to develop a combined mapping representation of air and noise pollutions. On the one hand, Bruitparif has tested different approaches to propose a noise indicator taking into account the various exposures to road, air and traffic noise, according to the strategic noise maps. On the other hand, Airparif has developed an air quality indicator taking into account the main regulated air pollutants. They have finally put together an original method of mapping representation of the double exposure to noise and air pollutions. Mapping combining air and noise pollutions is an efficient diagnostic tool for municipalities. This makes it possible to identify the areas at stake: those that are preserved from these pollutions and should be protected, and those that are highly exposed and where action must be taken. It offers a wide range of uses, like cross-referencing of air-noise data with the location of establishments receiving vulnerable groups, or making comparison with socio-economic data and health indicators.