Resolution: standard / high

Figure 7.

Bright-field (a) and dark-field (b) images of quartz embedded in soot emissions from coal combustion. Insertion in (b) shows the SAED pattern of quartz from an area of 1 μm.

Tian et al. BMC Public Health 2008 8:398 doi:10.1186/1471-2458-8-398
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