Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants Volume 3 (2009) / Chapter Skim
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CEGLs are ceiling concentrations designed to prevent immediate or delayed adverse health effects or degradation in crew performance that might result from continuous exposure to chemical substances lasting up to 90 days. In December 1995, the Navy began reviewing and updating the submarine exposure guidance levels.
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APPROACH TO STUDY In conducting its evaluations, the committee reviewed relevant human and animal data and used data-selection criteria described in the NRC report Standing Operating Procedures for Developing Acute Exposure Guideline Levels for Hazardous Chemicals.3 Where possible, primary references were used to derive the exposure guidance levels. Secondary references were used to support the estimates derived and the selection of critical end points.
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For derivation of the EEGL and CEGL values, the committee followed basic guidance provided by the NRC report Criteria and Methods for Preparing Emergency Exposure Guidance Level (EEGL) , Short-Term Public Emergency Guidance Level (SPEGL)
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RESEARCH RECOMMENDATIONS Since publication of the NRC reports Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants, Volumes 1 and 2, efforts have been made to characterize the submarine atmosphere better. However, the committee emphasizes the importance of a continuing occupationalhealth program and the need to monitor the submarine atmosphere and to maintain appropriate engineering controls to minimize the crew's exposure to air contaminants.
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Finally, as noted earlier, the submarine is a unique environment in which workers are potentially exposed 24 h/day over periods of weeks or months. Few experimental studies examine continuous exposure, and more studies that replicate the submarine environment need to be funded and conducted.
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