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Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur Ecological Criteria (Final Report, Dec 2008)
Citation:
U.S. EPA. Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur Ecological Criteria (Final Report, Dec 2008). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-08/082F, 2008.
Impact/Purpose:
The intent of the ISA, according to the CAA, is to “accurately reflect the latest scientific knowledge expected from the presence of [a] pollutant in ambient air” (U.S. Code, 1970a, 1970b). It includes scientific research from atmospheric sciences, exposure and deposition, biogeochemistry, hydrology, soil science, marine science, plant physiology, animal physiology, and ecology conducted at multiple scales (e.g., population, community, ecosystem, landscape levels). Key information and judgments formerly found in the Air Quality Criteria Documents (AQCDs) for NOX and SOX are included; Annexes provide a more detailed discussion of the most pertinent scientific literature. Together, the ISA and Annexes serve to update and revise the last NOX and SOX AQCDs which were published in 1993 and 1982, respectively.
Description:
EPA announced the availability of the final report, Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur - Ecological Criteria. This 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 oxides of nitrogen (NO2 and SO2).
URLs/Downloads:
FR Notice: Dec 12, 2008
Integrated Science Assessment for Oxides of Nitrogen and Sulfur – Ecological Criteria (Final Report) (PDF, 898 pp, 42130 KB, about PDF)
Integrated Science Assessment for Oxides of Nitrogen and Sulfur – Ecological Criteria (Executive Summary) (PDF, 13 pp, 3981 KB, about PDF)