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Evaluation of Calibration Parameters and Performance of the Video Imaging Technique of Assessing Exposure (VITAE System).
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
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Assessing exposures to chemicals that can be absorbed through the skin presents the industrial hygienist with a perplexing and sometimes frustrating dilemma. The fact that three of the articles appearing in the February 1993 AIHA Journal addressed surface wipe sampling is a testament to an increasing concern over the impact of dermally absorbed chemicals. In addition to increased awareness of percutaneous absorption as a potentially major factor in total body burden, this concern probably is fueled by frequent reductions in the allowable levels of many airborne contaminants for the workplace. As allowable workplace levels drop, the percentage of total body burden that is a result of dermal absorption may increase. This is especially true if dermal exposures are not controlled as rigorously as inhalation exposures. In fact, in many instances where the chemical has a low vapor pressure and is not aerosolized, dermal absorption is the primary route of exposure McArthur, 1992.
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