Van Mensel, A., Wuyts, K., Pinho, P., Muyshondt, B., Aleixo, C., Alos Orti, M., … Samson, R. (2023). The magnetic signal from trunk bark of urban trees catches the variation in particulate matter exposure within and across six European cities. Environmental Science and Pollution Research, 30(22), 50883-50895. https://doi.org/10.1007/s11356-023-25397-8