[Federal Register Volume 72, Number 113 (Wednesday, June 13, 2007)]
[Notices]
[Page 32669]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E7-11385]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Agency for Toxic Substances and Disease Registry

[ATSDR-231]


Development of Set 21 Toxicological Profiles

AGENCY: Agency for Toxic Substances and Disease Registry (ATSDR), 
Department of Health and Human Services (HHS).

ACTION: Notice of Development of Toxicological Profiles.

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SUMMARY: This notice announces the development of Set 21 Toxicological 
Profiles. Set 21 Toxicological Profiles consists of one new draft and 
six updated drafts. These profiles will be available to the public on 
or about October 17, 2007.

FOR FURTHER INFORMATION CONTACT: Contact Commander Jessilynn B. Taylor, 
Division of Toxicology and Environmental Medicine, Agency for Toxic 
Substances and Disease Registry, Mailstop F-32, 1600 Clifton Road, NE., 
Atlanta, Georgia 30333, telephone (770) 488-3313. Electronic access to 
these documents will also be available at the ATSDR Web site: http://www.atsdr.cdc.gov/toxpro2.html.

SUPPLEMENTARY INFORMATION: The Superfund Amendments and Reauthorization 
Act of 1986 (SARA) (42 U.S.C. 9601 et seq.) amended the Comprehensive 
Environmental Response, Compensation, and Liability Act of 1980 (CERCLA 
or Superfund) (42 U.S.C. 9601 et seq.) by establishing certain 
requirements for ATSDR and the U.S. Environmental Protection Agency 
(EPA) with regard to hazardous substances that are most commonly found 
at facilities on the CERCLA National Priorities List (NPL). Among these 
statutory requirements is a mandate for the Administrator of ATSDR to 
prepare toxicological profiles for each substance included on the 
priority lists of hazardous substances. These lists identified 275 
hazardous substances that ATSDR and EPA determined pose the most 
significant potential threat to human health. The availability of the 
revised list of the 275 priority substances was announced in the 
Federal Register on December 7, 2005 (70 FR 702840). For prior versions 
of the list of substances, see Federal Register notices dated April 17, 
1987 (52 FR 12866); October 20, 1988 (53 FR 41280); October 26, 1989 
(54 FR 43619); October 17, 1990 (55 FR 42067); October 17, 1991 (56 FR 
52166); October 28, 1992 (57 FR 48801); February 28, 1994 (59 FR 9486); 
April 29, 1996 (61 FR 18744); November 17, 1997 (62 FR 61332); October 
21, 1999 (64 FR 56792); October 25, 2001 (66 FR 54014) and November 7, 
2003 (68 FR 63098).
    Notice of the availability of drafts of these six updated and one 
new toxicological profiles for public review and comment will be 
published in the Federal Register on or about October 17, 2007, with 
notice of a 90-day public comment period for each profile, starting 
from the actual release date. Following the close of the comment 
period, chemical-specific comments will be addressed, and, where 
appropriate, changes will be incorporated into each profile.

Development of Toxicological Profiles

    This notice announces the development of one new and six updated 
toxicological profiles of priority hazardous substances comprising the 
twenty first set prepared by ATSDR. The following toxicological 
profiles are now being developed:

                      Set 21 Toxicological Profiles
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                  Toxicological profile                       CAS No.
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1. Boron................................................       7440-42-8
2. Chlorine*............................................       7782-50-5
3. 1,4-Dioxane..........................................        123-91-1
4. Ethyl Benzene........................................        100-41-4
5. Ethylene Glycol......................................        107-21-1
6. Plutonium............................................       7440-07-5
7. Styrene..............................................       100-42-5
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*Denotes new profile.


    Dated: May 31, 2007.
Kenneth Rose,
Acting Director, Office of Policy, Planning, and Evaluation, National 
Center for Environmental Health/Agency for Toxic Substances and Disease 
Registry.
 [FR Doc. E7-11385 Filed 6-12-07; 8:45 am]
BILLING CODE 4163-70-P