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National Ambient Air Quality Standards (NAAQS)

Sulfur Dioxide (SO2) Primary Standards -
Documents from Review Completed in 2010 -

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the SO2 Standards Home Page for documents from the current review of the SO2 NAAQS.

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File Description File Date File Types
November 2007 Consent Decree with schedules for SO2 and NO2 primary NAAQS and NO2/SO2 secondary NAAQS reviews 11/19/2007 PDF file
72 KB
Notice of proposed consent decree - request for public comment 09/20/2007 PDF file
80 KB

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