Perrone, M. G., Zhou, J., Malandrino, M., Sangiorgi, G., Rizzi, C., Ferrero, L., … Bolzacchini, E. (2016). PM chemical composition and oxidative potential of the soluble fraction of particles at two sites in the urban area of Milan, Northern Italy. Atmospheric Environment, 128, 104-113. https://doi.org/10.1016/j.atmosenv.2015.12.040