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Photographic gallery.  Thousands of particles under the microscope.
Natural Gas Soot

Soot is a general term for the black particulate matter created by combustion. Optically and chemically it includes a complex collection of different types of particles. All of the particles have a high carbon coordination number that results in the black color. They typically include some of the original fuel, materials that are associated with the original fuel, or that are associated with the original source. Common sources of soot in the home include smoking, fireplaces, furnaces, candles, oil lamps, vehicle emissions, open burning, house fires, industial fires, electric heating elements, incandescent bulbs, cooking, etc. There is never one source, though one source may dominate. Each source creates "signature" particles and large numbers of particles that are much less characteristic. Problems associated with identifying the sources of soot are discussed in an article on this site (Click here). Candle Soot Soot Candle Soot Candle and Paint Sphere circle-3 cenospheres circle-cenospheres3 Circle-lacy Cenosphere Tailpipe Exhaust Emissions Tailpipe Exhaust Emissions Charred Grass 400X Multicell 6 zoom 400X Cell 2 zoom Mesquite Char Trans Charred Wood Oil Lamp Soot Oil Soot Oil Soot Cigarette Smoke Cigarette Smoke Cigarette Smoke Black on Carpet Edge Ghosting Behind Picture Frame Ghosting Behind Picture Frame Ghosting on Ceiling and Walls Ghosting Soot From Industrial Fire Natural Gas Soot Charred Thread