[Federal Register Volume 66, Number 159 (Thursday, August 16, 2001)]
[Notices]
[Page 43011]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-20662]


-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

[FRL-7034-1]


Volatilization Rates From Water to Indoor Air--Phase II

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of availability of a final report.

-----------------------------------------------------------------------

SUMMARY: The National Center for Environmental Assessment, Office of 
Research and Development, U. S. Environmental Protection Agency 
announces the availability of a final report, Volatilization Rates From 
Water to Indoor Air--Phase II (EPA/600/R-00/096, October 2000). The 
purpose of the report is to provide a methodology to assess the 
volatilization of chemicals from contaminated water to indoor air. The 
study involved the development of two-phase dynamic mass models for 
estimating chemical emissions from washing machines, dishwashers, 
showers, and bathtubs. This report presents the results of a series of 
experiments conducted to determine emissions from four sources of water 
use in a household (showers, bathtubs, washing machines, and 
dishwashers). Mass transfer coefficients and chemical stripping 
efficiencies were determined using four sources and five tracer 
chemicals (acetone, ethyl acetate, toluene, ethylbenzene, and 
cyclohexane). The report provides a step-by-step methodology for 
estimating emissions from any of these four sources for any chemical. 
This research was conducted under the Research to Improve Health Risk 
Assessment program (RIHRA). The goal of the RIHRA program was to 
generate research results to significantly improve the U.S. 
Environmental Protection Agency's ability to improve human health risk 
assessments.

ADDRESSES: The document will be made available electronically through 
the National Center for Environmental Assessment's web site 
(www.epa.gov/ncea). A limited number of paper copies will be available 
on or about August 24, 2001 from EPA's National Service Center for 
Environmental Publications (NSCEP). To obtain copies, please contact 
NSCEP, P.O. Box 42419, Cincinnati, OH 45242; telephone: 1-800-490-9198 
or 513-489-8190; facsimile: 513-489-8695. Please provide your name and 
mailing address and the title and EPA number of the requested 
publication.

FOR FURTHER INFORMATION CONTACT: Jacqueline Moya, National Center for 
Environmental Assessment-Washington Office (8623D), U.S. Environmental 
Protection Agency, Washington DC 20460; telephone: 202-564-3245; 
facsimile: 202-565-0076; email:[email protected].

    Dated: August 7, 2001.
Arthur F. Payne,
Acting Director, National Center for Environmental Assessment.
[FR Doc. 01-20662 Filed 8-15-01; 8:45 am]
BILLING CODE 6560-50-P