SEM-EDX analyses of an extracted asbestos body. Panel A: SEM image of an asbestos body placed on a glass support. In panel B higher magnification of the denudated part of the asbestos body, indicated by arrow in panel A. Panels C and D: EDX spectra acquired on the selected regions, indicated in panel B as points C and D respectively. The Cr signal originates from the glass support and should be ignored. Electron microprobe size of 100 nm2 (see material and methods for instrument details).