Fact Sheets and Additional Information Regarding the Primary National Ambient Air Quality Standards (NAAQS) for Nitrogen Dioxide (NO2)
This page contains a fact sheet on the 2018 decision to retain the existing standards, and also fact sheets and additional information related to the setting of the existing standards in 2010.
- Primary National Ambient Air Quality Standards (NAAQS) for Nitrogen Dioxide: Fact Sheet (pdf)
- Fact Sheet: Proposed Decision to Retain the Primary National Ambient Air Quality Standards of Oxides of Nitrogen (pdf)
- Fact Sheet: Final Revisions to the National Ambient Air Quality Standards for Nitrogen Dioxide (pdf)
- Final Revisions to the Primary National Ambient Air Quality Standard (NAAQS) for Nitrogen Dioxide (pdf)
- Design Values (Average 1-Hour 98th percentiles over 3 years) by County for Nitrogen Dioxide (pdf)
- Final Regulatory Impact Analysis (RIA) for the 2010 NO2 National Ambient Air Quality Standards (NAAQS) (pdf)