Air Quality Criteria for Carbon Monoxide (External Review Draft); Estimation of Carbon Monoxide Exposures and Associated Carboxyhemoglobin Levels in Denver Residents Using pNEM/CO (Version 2.0) (Draft)

[Federal Register Volume 64, Number 51 (Wednesday, March 17, 1999)]
[Notices]
[Pages 13198-13199]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-6508]


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ENVIRONMENTAL PROTECTION AGENCY

[NCEA-CD-99-1015; FRL-6310-4]


Air Quality Criteria for Carbon Monoxide (External Review Draft); 
Estimation of Carbon Monoxide Exposures and Associated 
Carboxyhemoglobin Levels in Denver Residents Using pNEM/CO (Version 
2.0) (Draft)

Agency

Environmental Protection Agency.

Action

Notice of two drafts for public review and comment.

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Summary

The U.S. Environmental Protection Agency (EPA), National Center for Environmental Assessment, is announcing the availability of an external review draft of the document, Air Quality Criteria for Carbon Monoxide. Required under sections 108 and 109 of the Clean Air Act, the purpose of this document is to provide an assessment of the latest, relevant

scientific information that may have an impact on the next periodic review of the National Ambient Air Quality Standards (NAAQS) for carbon monoxide (CO). The EPA's Office of Air Quality Planning and Standards (OAQPS) is announcing the availability of a draft carbon monoxide exposure analysis methodology report, Estimation of Carbon Monoxide Exposures and Associated Carboxyhemoglobin Levels in Denver Residents Using pNEM/ CO (Version 2.0). This document is part of the technical support work that will be summarized in the OAQPS staff paper on carbon monoxide.

Dates

Anyone who wishes to comment on the draft document, Air Quality Criteria Document for Carbon Monoxide, may do so in writing by May 15, 1999. Send the written comments to the Project Manager for Carbon Monoxide, National Center for Environmental Assessment-RTP Office (MD- 52), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711. The OAQPS draft report will be available by March 15, 1999. A letter that will be included with copies of the draft will discuss the length of time that OAQPS is allowing the public for comment and will provide mailing information for the comments.

Addresses

To obtain a copy of the Air Quality Criteria for Carbon Monoxide (External Review Draft) 1999, EPA/600/P-99/001, contact the National Service Center for Environmental Publications. Request a copy by telephoning 1-800-490-9198 and provide the title and the EPA number for the document. Internet users may obtain a copy from the EPA's National Center for Environmental Assessment (NCEA's) home page. The URL is www.epa.gov/ncea/. To obtain a copy of the Estimation of Carbon Monoxide Exposures and Associated Carboxyhemoglobin Levels in Denver Residents Using pNEM/CO (Version 2.0), Internet users can go to the EPA's OAR Policy and Guidance page on the OAQPS TTNWeb. The URL is www.epa.gov/ttn/ caa/t1sp.html. A limited number of paper copies of this document will be available and can be obtained from: U.S. Environmental Protection Agency Library, MD-35, Research Triangle Park, NC 27711, telephone (919) 541-2777.

For Further Information Contact

Mr. James Raub, National Center for Environmental Assessment-RTP Office (MD-52), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone: 919- 541-4157; facsimile: 919-541-1818; E-mail: raub.james@epa.gov. Mr. Raub will provide information on the draft document, Air Quality Criteria for Carbon Monoxide. For further information related to the draft exposure analysis methodology report for Denver, contact Mr. Harvey Richmond, Office of Air Quality Planning and Standards (MD-15), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone: 919- 541-5271; facsimile: 919-541-0840; E-mail: richmond.harvey@epa.gov.

Supplementary Information

The U.S. Environmental Protection Agency (EPA) is updating and revising, where appropriate, the EPA's Air Quality Criteria for Carbon Monoxide (CO). Sections 108 and 109 of the Clean Air Act require that the EPA carry out a periodic review and revision, where appropriate, of the criteria and the National Ambient Air Quality Standards (NAAQS) for the ``criteria'' air pollutants such as carbon monoxide. After the completion of the comment period, the EPA will present the external review draft of the Air Quality Criteria for Carbon Monoxide and, as supporting documentation for the OAQPS staff paper on carbon monoxide, the Estimation of Carbon Monoxide Exposures and Associated Carboxyhemoglobin Levels in Denver Residents Using pNEM/CO (Version 2.0) for review before the Clean Air Scientific Advisory Committee (CASAC) later in 1999. The EPA will issue a subsequent Federal Register document to inform the public of the exact date and time of this meeting.

Dated: March 9, 1999. William H. Farland, Director, National Center for Environmental Assessment. [FR Doc. 99-6508 Filed 3-16-99; 8:45 am] BILLING CODE 6560-50-P