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during rare emergency situations lasting 1-24 h. Exposures at the EEGLs may induce reversible effects, such as ocular or upper respiratory tract irritation, and are therefore acceptable only in emergencies, when some discomfort must be endured. After 24 h of exposure, the CEGLs would apply. 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 che | Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants Volume 2 Free Executive Summary http www.nap.edu catalog 12032.html Free Executive Summary Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants Volume 2 Committee on Emergency and Continuous Exposure Guidance Levels for Selected Submarine Contaminants Committee on Toxicology National Research Council ISBN 978-0-309-11273-4 332 pages 6 x 9 paperback 2008 This free executive summary is provided by the National Academies as part of our mission to educate the world on issues of science engineering and health. If you are interested in reading the full book please visit us online at http www.nap.edu catalog 12032.html . You may browse and search the full authoritative version for free you may also purchase a print or electronic version of the book. If you have questions or just want more information about the books published by the National Academies Press please contact our customer service department toll-free at 888-624-8373. 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. 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. In this latest report in a series the Navy asked the National Research Council NRC to review and develop when necessary exposure guidance levels for 11 contaminants. The report recommends exposure levels for hydrogen that are lower than current Navy guidelines. For all other contaminants except for two for which there are insufficient data recommended levels are similar to or slightly higher than those proposed by the Navy. The report finds that overall there is very little exposure data available on the submarine environment and echoes recommendations from earlier NRC reports to expand exposure monitoring in submarines. This executive .
