You are here:
Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur - Environmental Criteria (First External Review Draft, Dec 2007)
The draft Integrated Science Assessment for Oxides of Nitrogen and Sulfur - Environmental Criteria and the Annexes to this document were announced in a December 21, 2007 Federal Register Notice. Please see "Additional Information" for steps on providing comments on this report through Regulations.gov. The deadline for comments is February 21, 2008.
The Annexes to the ISA have been posted as of February 11, 2008.
Citation:
U.S. EPA. Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur - Environmental Criteria (First External Review Draft, Dec 2007). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-07/145A, 2007.
Impact/Purpose:
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 on retaining or revising the current secondary standards for NO2 and SO2.
Description:
EPA is announcing that the First External Review Draft of the Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur – Environmental Criteria has 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 on retaining or revising the current secondary standards for NO2 and SO2.
URLs/Downloads:
Integrated Science Assessment for Oxides of Nitrogen and Sulfur – Environmental Criteria (First External Review Draft) (PDF, 454 pp, 8658 KB, about PDF)Integrated Science Assessment for Oxides of Nitrogen and Sulfur - Environmental Criteria (Annexes Only) (PDF, 1038 pp, 10476 KB, about PDF)
SAB FR Notice: Feb 26 , 2008
FR Notice: Dec 21, 2007
CASAC Project Overview for the Review of the EPA's Integrated Science Assessment for Nitrogen Dioxide and Sulfur Dioxide Secondary (Welfare-based)
CASAC Review of EPA’s Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur – Environmental Criteria (First External Review Draft) (PDF, 111 pp, 795 KB, about PDF)