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Figure 1
All four pollutant and marker particles were visible on the tracheal airway surface. These static frames (taken from each of the four supplementary movies) show (a) glass beads, (b) lead, (c) fibreglass and (d) quarry dust. Each image contains an inset showing a small segment of the airway surface at higher magnification to aid identification of the particulates. Each image is 1.8 mm × 1.2 mm (insets are ∼0.1 mm × 0.1 mm). The head is to the right and lungs are to the left, with MCT expected to be predominantly in the left-to-right direction. Note the presence of cartilage bands [broad speckled regions in (a), (b) and (d)] surrounding the trachea, and the glass beads remaining in (d) from the first delivery.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 4| May 2012| Pages 551-558
doi:10.1107/S0909049512018250
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