Articles | Volume 9, issue 2
https://doi.org/10.5194/gc-9-261-2026
https://doi.org/10.5194/gc-9-261-2026
Research article
 | 
11 Jun 2026
Research article |  | 11 Jun 2026

Make the invisible visible: reveal the magnetic field and air pollution to foster engagement in a community-based participatory research project

Melina Macouin, Sonia Rousse, Sandrine Suchon, Loïc Drigo, Laure Laffont, Laurence Delville, Eva Vedel, Paul Antonio, Jean-François Léon, Arua da Silva Leite, Eva Schreck, and Fabrice Gangneron

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Cited articles

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Brignole, D., Drava, G., Minganti, V., Giordani, P., Samson, R., Vieira, J., Pinho, P., and Branquinho, C.: Chemical and magnetic analyses on tree bark as an effective tool for biomonitoring: A case study in Lisbon (Portugal), Chemosphere, 195, 508–514, https://doi.org/10.1016/j.chemosphere.2017.12.107, 2018. 
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Carvallo, C., Isambert, A., Franke, C., Turcati, L., Sivry, Y., Coural, S., Macouin, M., Rousse, S., and Fluteau, F.: Ecorc'Air: A citizen science project for the biomonitoring of vehicular air pollution in Paris, France, Community Science, 3, e2024CSJ000084, https://doi.org/10.1029/2024CSJ000084, 2024. 
Castañeda-Miranda, A. G., Chaparro, M. A. E., Böhnel, H. N., Chaparro, M. A. E., Castañeda-Miranda, R., Pacheco-Castro, A., Martinez-Fierro, M. L., Solis-Sánchez, L. O., and Ornelas-Vargas, G.: Bursera fagaroides bark as a bioindicator for air particle pollution using magnetic properties, J. South Am. Earth Sci., 108, 103217, https://doi.org/10.1016/j.jsames.2021.103217, 2021. 
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Short summary
We designed a hands-on science workshop using magnets to explore air pollution with citizens and children. The activities sparked curiosity, and encouraged participants to join a community air quality project. Our results show that discovery-based activities help create meaningful exchanges between science and society.
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