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Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants
U.S. Navy personnel who work on submarines are in an enclosed and isolated environment for days or weeks at a time when at sea. Unlike a typical work environment, they are potentially exposed to air contaminants 24 hours a day. To protect workers from potential adverse health effects due to those conditions, the U.S. Navy has established exposure guidance levels for a number of contaminants. The Navy asked a subcommittee of the National Research Council (NRC) to review, and develop when necessary, exposure guidance levels for specific contaminants. This volume, the third in a series, recommends 1-hour and 24-hour emergency exposure guidance levels (EEGLs) and 90-day continuous exposure guidance levels (CEGLs) for acetaldehyde, hydrogen chloride, hydrogen fluoride, hydrogen sulfide, and propylene glycol dinitrate.
Acute Exposure Guideline Levels for Selected Airborne Chemicals
Extremely hazardous substances (EHSs)² can be released accidentally as a result of chemical spills, industrial explosions, fires, or accidents involving railroad cars and trucks transporting EHSs. Workers and residents in communities surrounding industrial facilities where EHSs are manufactured, used, or stored and in communities along the nation's railways and highways are potentially at risk of being exposed to airborne EHSs during accidental releases or intentional releases by terrorists. Pursuant to the Superfund Amendments and Reauthorization Act of 1986, the U.S. Environmental Protection Agency (EPA) has identified approximately 400 EHSs on the basis of acute lethality data in rodents...
Short-Term Exposure Guidelines for Emergency Response: The Approach of the Committee on Toxicology
For over 40 years, the Committee on Toxicology (COT) of the National Research Council (NRC) has, upon request, advised the Department of Defense (DoD) on the ceilings for guidance for single emergency exposure conditions (i.e., an occurrence expected to be infrequent in the lifetime of a person). The levels are not intended for conditions that are to be repeated on a regular basis. The guidance levels are for military personnel operating under emergency conditions whose circumstances are peculiar to military operations. The guidance levels should never be considered as standards for the general population. Under some circumstances, DoD asks COT for guidance levels for short-term emergency exposures that may affect the general public. Such guidance levels are for one-time, single exposures under emergency conditions and are adjusted for the difference in the population of the general compared to the military. Finally COT also provides, upon request, guidance levels for continuous exposures (up to 90 days) of military personnel in atmospheres specific to military operations (e.g., submarines). NRC has published seven volumes giving recommended guidance level for 37 chemicals.
