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NIOSH Issues Bulletin on Nanotubes and Nanofibers

Posted in on Tue, May 21, 2013

In April, NIOSH issued a Current Intelligence Bulletin (CIB) on occupational exposure to carbon nanotubes and nanofibers.  The bulletin (1) reviews the animal and other toxicological data relevant to assessing the potential non-malignant adverse respiratory effects of these nanofibers (2) provides a quantitative risk assessment based on animal dose-response data, (3) proposes a recommended exposure limit (REL) of 1 μg/m3 elemental carbon as a respirable mass 8-hour time-weighted average (TWA) concentration, and (4) describes strategies for controlling workplace exposures and implementing a medical surveillance program.  You can find the CIB at http://www.cdc.gov/niosh/docs/2013-145/

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