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Sulfur Dioxide (SO2) Pollution

1‐Hour SO2 NAAQS Implementation: Final Data Requirements Rule, Webinar Slides

Presentation Overview:

  • SO2 NAAQS Data Requirements Rule (DRR)
    • Final rule was signed on August 10, 2015.
    • Information available on:
  • The DRR was developed to address the need for additional air quality data to be used for implementing the 2010 1‐hour SO2 NAAQS.
    • The existing SO2 monitoring network characterizes localized SO2 source impacts in a limited set of areas.
    • Under the DRR, air agencies will provide additional air quality data characterizing 1‐hour peak concentrations and source‐oriented impacts.
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