federal_register: 98-10147
Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API
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| 98-10147 | Air Quality Criteria for Particulate Matter | Proposed Rule | The National Center for Environmental Assessment, of the U.S. Environmental Protection Agency (EPA), is undertaking to review and, as appropriate, revise the EPA criteria document entitled Air Quality Criteria for Particulate Matter (PM) as required under sections 108 and 109 of the Clean Air Act. The process that the EPA plans to follow is described in a previous notice (62 FR 55201, October 23, 1997). Since completion of the 1996 criteria document for particulate matter, 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 PM (PM 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 PM criteria document. In particular, new information is being sought with regard to the following three general topic areas: (1) PM health effects, including experimental studies of PM exposure effects on humans or laboratory animals (especially studies relating PM exposures at ambient or near-ambient levels to health effects, related biologic mechanisms, and PM dosimetry), and epidemiologic studies of short- and long-term PM exposure effects on human mortality and morbidity, as well as new information concerning related analytical methodology issues and human exposure; (2) PM welfare effects, e.g., effects on vegetation, agroecosystems (crops) and natural ecosystems, visibility, nonbiological materials, and the global climate; and (3) other pertinent air-quality-related information on atmospheric chemistry and physics, sources and emissions, ambient concentrations and measurement methodology, and transformation and transport in the environment. Primary emphasis will be placed by the EPA on consideration of peer-reviewed, published information in revising the subject PM criteria document. Thus, most typically, submitted information should have been peer-reviewed and published or accepted for publication. | 1998-04-16 | 1998 | 4 | https://www.federalregister.gov/documents/1998/04/16/98-10147/air-quality-criteria-for-particulate-matter | https://www.govinfo.gov/content/pkg/FR-1998-04-16/pdf/98-10147.pdf | Environmental Protection Agency | 145 | The National Center for Environmental Assessment, of the U.S. Environmental Protection Agency (EPA), is undertaking to review and, as appropriate, revise the EPA criteria document entitled Air Quality Criteria for Particulate Matter (PM) as required... |