Tailpipe Emissions

This is from an environmental tapelift collected in an office near a major highway. Tailpipe emissions are the collection soot flakes that build up in the tailpipe of a vehicle and occasionally break free. They don’t have the reflectivity of pencil graphite, they lack the fractal structure of dry soot agglomerates and the globular shape of wet soot agglomerates. They often are associated with iron corrosion products. They tend to be present in environments near heavily trafficked roads.