Air Quality Criteria for Carbon Monoxide

ENVIRONMENTAL PROTECTION AGENCY

[NCEA-CD-97-1015; FRL-5931-2]

Air Quality Criteria for Carbon Monoxide

AGENCY: Environmental Protection Agency.

ACTION: Call for information.

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SUMMARY: The National Center for Environmental Assessment, of the U.S.

Environmental Protection Agency (EPA), is undertaking to update and

revise, where appropriate, the EPA's Air Quality Criteria for Carbon

Monoxide (CO) as required under sections 108 and 109 of the Clean Air

Act.

Since completion of the 1991 criteria document for carbon monoxide,

the EPA has continued to follow the scientific literature and compile

information that may be relevant to the next periodic review of the

National Ambient Air Quality Standards for CO (CO NAAQS). Interested

parties are invited to assist the EPA in developing and refining its

scientific information base to help ensure that all relevant

information is considered in updating the Air Quality Criteria for CO.

Identification of new information in the following areas will be

particularly useful: effects of exposure on laboratory animals and

humans; effects on the global climate; chemistry and physics; sources

and emissions; transformation and transport in the environment; and

ambient concentrations.

To be considered for inclusion in the criteria document and in the

next periodic review of the CO NAAQS, submitted information should have

been published, accepted for publication, or presented at a public

scientific meeting.

DATES: All communications and information should be submitted by

December 31, 1997.

ADDRESSES: Communications should be addressed to the Project Manager

for CO, National Center for Environmental Assessment (MD-52), U.S.

Environmental Protection Agency, Research Triangle Park, NC 27711.

FOR FURTHER INFORMATION CONTACT: Diane H. Ray, National Center for

Environmental Assessment (MD-52), U.S. Environmental Protection Agency,

Research Triangle Park, NC 27711; telephone: 919-541-3637; facsimile:

919-541-1818; e-mail: [email protected].

Dated: November 25, 1997.

William H. Farland,

Director, National Center for Environmental Assessment.

[FR Doc. 97-31734 Filed 12-2-97; 8:45 am]

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