Since 1957, the National Center for Health Statistics, a division of the Centers for Disease Control and Prevention, has conducted the National Health Interview Survey (NHIS), a series of annual U.S. national surveys of the health status of the noninstitutionalized civilian population.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Environments and Contaminants: Indoor Environments (PDF)(19 pp, 245 K)