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Environmental Assessment

Integrated Science Assessment for Particulate Matter (First External Review Draft)

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Report Information

EPA has announced that the First External Review Draft of the Integrated Science Assessment (ISA) for Particulate Matter and related Annexes have been made available for independent peer review and public review. This draft ISA document represents a concise synthesis and evaluation of the most policy-relevant science and will ultimately provide the scientific bases for EPA's decision regarding whether the current standards for PM sufficiently protects public health and the environment.

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Jason Sacks
  • by phone at:   919-541-9729
  • by email at:  sacks.jason@epa.gov

Background

EPA released this draft document to seek review by the Clean Air Scientific Advisory Committee (CASAC) and the public (meeting date and location to be specified in a separate Federal Register notice). The draft document does not represent, and should not be construed to represent, any final EPA policy, viewpoint, or determination. EPA will consider any public comments submitted in response to this notice when revising the document.

Particulate matter (PM) is one of six principal (or criteria) pollutants for which EPA has established NAAQS. Periodically, EPA reviews the scientific basis for these standards by preparing an Integrated Science Assessment (ISA) (formerly called an Air Quality Criteria Document). The ISA and supplementary annexes, in conjunction with additional technical and policy assessments, provide the scientific basis for EPA decisions on the adequacy of the current NAAQS and the appropriateness of possible alternative standards. The Clean Air Scientific Advisory Committee (CASAC), an independent science advisory committee whose existence and whose review and advisory functions are mandated by Section 109 (d) (2) of the Clean Air Act, is charged (among other things) with independent scientific review of EPA's air quality criteria.

History/Chronology

1969EPA published the first Air Quality Criteria for Particulate Matter and Air Quality Criteria for Sulfur Oxides.
1970EPA published an update to the Air Quality Criteria for Particulate Matter and Air Quality Criteria for Sulfur Oxides.
1977The Air Quality Criteria Document (including 3 volumes) were updated in response to specific requirements of Section 108 of the Clean Air Act, as amended in 1977.
Dec 1982EPA published an update to the Air Quality Criteria for Particulate Matter and Sulfur Oxides.
Dec 1986EPA published the Second Addendum to Air Quality Criteria for Particulate Matter and Sulfur Oxides (1982): Assessment of New Findings on Sulfur Dioxide and Acute Exposure Health Effects in Asthmatic Individuals.
Aug 1994EPA published the Supplement to the Second Addendum (1986) to Air Quality Criteria for Particulate Matter and Sulfur Oxides (1982): Assessment of New Findings on Sulfur Dioxide and Acute Exposure Health Effects in Asthmatic Individuals.
Apr 1996EPA released an updated Air Quality Criteria Document for Particulate Matter (Final Report).
1997 - 2004EPA released multiple external review drafts for comment and review.
Oct 2004EPA released an updated Air Quality Criteria Document for Particulate Matter (Final Report).
Jun 2007EPA formally initiated its current review of the air quality criteria for PM, requesting the submission of recent scientific information on specific topics. [ Federal Register Jun 28, 2007]
Oct 2007EPA released an external review draft of EPA's Integrated Review Plan for the National Ambient Air Quality Standard for Particulate Matter (EPA/452/P-08/006) for public comment and was discussed by the CASAC via a publicly accessible teleconference consultation on November 30, 2007 (72 FR 63177).
Mar 2008EPA released the final plan, Integrated Review Plan for the National Ambient Air Quality Standard for Particulate Matter(EPA/452/R-08/004).
Jun 2008EPA held a workshop to discuss, with invited scientific experts, initial draft materials prepared in the development of the PM ISA and its supplementary annexes. [Federal Register May 27, 2008]
Dec 2008EPA released the first external review draft of the ISA for PM assessment for public review and comment.[Federal Register Dec 19, 2008]
Feb 2009EPA's Science Advisory Board (SAB) announced a public meeting of the Clean Air Scientific Advisory (CASAC) PM Review Panel to discuss the PM ISA (First External Review Draft). [Federal Register Feb 19, 2009]

Next Steps

The first external review draft ISA for PM will be discussed at a public meeting for review by CASAC, and public comments received will be provided to the CASAC review panel. A future Federal Register notice will inform the public of the exact date and time of that CASAC meeting.

Additional Information

Included for public review is the draft Integrated Science Assessment for Particulate Matter (First External Review Draft). Comments on this document may be submitted and reviewed using the e-Government Regulations.gov Web site. From the site, select Environmental Protection Agency and the keyword EPA-HQ-ORD-2007-0517 (for the docket ID) to comment on this report.

Citation

U.S. EPA. Integrated Science Assessment for Particulate Matter (First External Review Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-08/139, 2008.

Downloads

This download(s) is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency determination or policy.

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