Fig. 4From: Endothelial responses of the alveolar barrier in vitro in a dose-controlled exposure to diesel exhaust particulate matterDistribution of metals on the outer shell of DEPM analyzed by NanoSIMS50. DEPM samples were analyzed for the presence of Ni, Cu, Cr and Zn. P was used as reference to draft an image of the outer shell of the particle. The relative amounts of the elements are presented as intensities with a logarithmic scale from black (lowest) to red (highest)Back to article page