Vapor Pressure of Normal and Burned Skin

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Abstract
Effective vapor pressure of unburned skin of the trunk shows a gradient above the atmosphere of 1.5 [plus or minus] 0.8 mm. Hg. The diffusion barrier in this study showed a mean value of 27.5 [plus or minus] 2.5 mm. Hg for normal skin. This barrier is destroyed in burned skin and, during the period studied, only partially replaced after healing of partial thickness burns. The vapor pressure of eschar is the same as water at that temperature. The gradient above atmospheric vapor pressure is 15 to 25 times greater than normal skin.