Integrated Science Assessments (ISAs)
[NOTICE] EPA announced the availability of the final Integrated Science Assessment for Ozone and Related Photochemical Oxidants in an April 20, 2020 Federal Register Notice (FRN).
EPA has set National Ambient Air Quality Standards (NAAQS) for six principal criteria air pollutants, which include nitrogen oxides, sulfur oxides, particulate matter, carbon monoxide, ozone and lead. Numerous sources emit these "criteria pollutants", which are considered harmful to public health and the environment.
Since 2008, EPA’s Integrated Science Assessments (ISAs) have formed the scientific foundation for the review of the NAAQS standards by providing the primary (human health-based) and secondary (welfare-based, e.g. ecology, visibility, materials) science assessments:
Calendar of Workshops and Meetings
The CASAC Calendar includes a complete list of past and future meeting details.