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. Author manuscript; available in PMC: 2016 May 5.
Published in final edited form as: Int J Respir Pulm Med. 2016 Feb 11;3(1):3:039. doi: 10.23937/2378-3516/1410039

Figure 1.

Figure 1

An agglomerate of particles held together by carbonaceous TPM tar on the filter fibers of a CORESTA CM7 cigarette filter (mouth end) smoked according to the Canadian Intense smoking regimen (11). This image was obtained in Low Vacuum mode with an accelerating voltage of 20 kV, spot size 3.0, 110 Pa vapor pressure in the sample chamber, with a 500μm pressure limiting aperture on a Concentric Backscatter Detector (CBS).