California Air Resources Board

The California Air Resources Board (CARB) invites you to participate in public workshops to discuss health effects of indoor exposures to nitrogen dioxide and impacts of possible updates to the California indoor air quality guidelines for nitrogen dioxide on public health. The purpose of the workshops is to hear information about the health effects of indoor exposures to nitrogen dioxide, current indoor air guidelines for international agencies, and how updates to the guidelines could improve indoor air quality and benefit public health. Presenters from health agencies and academia will share their perspectives on indoor air quality issues and the development and use of nitrogen dioxide guidelines. We will also hear from representatives of community groups and non-profit organizations, who will discuss how poor indoor air quality impacts their communities and what factors they consider important for new indoor air quality guidelines. 

The first workshop was held May 16, 2023 -- a recording and presentation materials are available online; Please submit your comments here: