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Modeling Subsurface Petroleum Hydrocarbon Transport

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In the absence of any biodegradation, concentrations decrease with distance from the source. In a nutshell, subsurface heterogeneity causes this reduction in concentration. The phenomenon is called dispersion and will be discussed at length in later modules.

Depiction of dispersion effects on concentration.

source Color of the contaminant source
xylenes Color of the xylenes plume
benzene Color of the benzene plume
MTBE Color of the MTBE plume

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