Carvallo C., Isambert A., Franke C., Turcati L., Sivry Y., Coural S., Macouin M., Rousse Sonia, Fluteau F. (2024). Ecorc'Air : a citizen science project for the biomonitoring of vehicular air pollution in Paris, France. Community Science, 3 (3), e2024CSJ000084 [17 p.]. ISSN 2692-9430.
Titre du document
Ecorc'Air : a citizen science project for the biomonitoring of vehicular air pollution in Paris, France
Année de publication
2024
Auteurs
Carvallo C., Isambert A., Franke C., Turcati L., Sivry Y., Coural S., Macouin M., Rousse Sonia, Fluteau F.
Source
Community Science, 2024,
3 (3), e2024CSJ000084 [17 p.] ISSN 2692-9430
Airborne particulate matter (PM) is known to have adverse health effects and is a growing concern in urban areas. Spatial and temporal variability is difficult to assess with the few air quality stations
typically available in cities. As an alternative, tree bark acts as a passive captor on which PM is deposited. Magnetic susceptibility measurements can be used as a proxy indicator to estimate pollution from vehicle
sources. We present the citizen science project called Ecorc'Air, in which volunteers collect plane tree bark samples, mainly in Paris, which are then sent to laboratories and used for various measurements. The project has
developed since 2016, leading to the production of annual maps that identify variations in magnetic particle concentrations. The correlation between magnetic susceptibility and metal content has been verified using multi
elemental analysis. Thanks to these numerous samples, we were able to identify areas with consistently high susceptibility values over time. We also quantified the decrease in susceptibility values with the distance
between the tree and the road, as well as the shielding effect of parked cars on pedestrians. We showed trends in susceptibility variations over time along a specific well?sampled road, suggesting that this type of sampling and
measurement could be used to quantify variations in metallic pollution at a local scale. Finally, through interviews, we found that there is a growing interest and participation of city dwellers, especially those involved
in local associations, to act in favor of environmental research, as well as of municipalities to offer support.
Plan de classement
Physique / Chimie [020PHYCHI]
;
Environnement, écologie générale [021ENVECO]
Localisation
Fonds IRD [F B010093895]
Identifiant IRD
fdi:010093895
