How does dermal absorption of fire contaminants change with temperature increase?

Dermal absorption of fire contaminants is significantly influenced by temperature. As temperatures rise, the skin's permeability increases, allowing for greater absorption of harmful substances. Specifically, it has been observed that dermal absorption can increase by approximately 400% for every 5-degree increase in temperature. This phenomenon occurs because higher temperatures enhance the fluidity of the skin's lipid barrier, leading to more efficient penetration of contaminants.

This understanding is crucial for firefighting and hazardous materials response, as it emphasizes the importance of protective gear and reducing exposure to high-heat environments. Firefighters and responders must consider this increased risk when operating in regions with elevated temperatures, as the potential for skin absorption of toxic substances becomes more pronounced. Recognizing this effect helps in developing safer operational procedures and reinforcing the necessity of protective clothing to mitigate risks associated with thermal exposure.