NIOSH Factsheet
This document has been superseded by https://www.cdc.gov/niosh/docs/2017-132
To obtain a copy of a previous version of this communication product please contact
CDC Info 1-800-CDC-INFO (1-800-232-4636)|TTY: 1-888-232-6348 l cdc.gov/info.
November 2009
DHHS (NIOSH) Publication Number 2009-120

The National Institute for Occupational Safety and Health (NIOSH) is the U.S. federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness. NIOSH is part of the Centers for Disease Control and Prevention (CDC) in the U.S. Department of Health and Human Services.