Equilibrium partitioning of organic compounds
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FAQMine sweeper for enviromental chemists - not a game!
Question: Can one make a general statement on whether the explosive concentrations that the dogs are exposed to in the REST system are higher, equal or lower than the explosive concentrations to which the dogs would have been exposed in the field?
Additional information: Mines are typically buried within the top 20 cm of a soil.
In the field situation, it is reasonable to assume that there is a partition equilibrium of chemicals between the soil surface and an adjacent air layer of a few mm thickness. Further away from the soil surface, all scents are quickly diluted by turbulent air movement. The dogs get their nose very close to the ground during sniffing in order to access the equilibrium concentrations close to the surface.
Neglect potential temperature effects.
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Proceed |
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