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Air Quality: EPA's Integrated Science Assessments (ISAs)

Frequent Questions

What is an ISA and where can I find out more about the ISAs?

An Integrated Science Assessment or ISA is explained in detail on the Basic Information page.

What is HERO?

The Health & Envirommental Research Online (HERO) is a database of scientific studies and other references used to develop EPA's risk assessments, in this case the ISAs, aimed at understanding the health and environmental effects of pollutants and chemicals. HERO contains many of the citations from the most recently released ISA assessments including Carbon Monoxide, Particulate Matter, and the NOx/SOx Assessments. [Read more about HERO]

Does the ISA include the NAAQS Standards?

No, these are posted on the EPA National Ambient Air Quality Standards (NAAQS) Web site.

How can I get more involved?

EPA sends out federal register notices when the public is invited to comment on ISA draft reports prior to external peer review. In addition the EPA Science Advisory Board (SAB) often post other ways for public involvement in advisory activities.

How do I comment on the current review drafts?

EPA will announce the availability of a draft ISA in the Federal Register with detailed steps on how to comment on there reports. Typically drafts are released prior to an external peer review meeting for the public to review and comment. All comments can be submitted to the Regulations.gov Web site under the Docket ID specified for each draft report. These are then collected and submitted to the reviewers if they are entered by the deadline given in the federal notice. For more information about the use of regulations.gov, visit their site at http://www.regulations.gov.

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