Category Archives: SO2 Area Designations

Updated Guidance for Sulfur Dioxide Area Designations: Part 2- Dispersion Modeling Option

EPA’s Updated Guidance for Sulfur Dioxide Area Designations makes reference to two options to determine  SO2 area designations in areas with large SO2 sources.  These choices include dispersion modeling and ambient monitoring.  Of these two options, dispersion modeling is the … Continue reading

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Updated Guidance for SO2 Area Designations- Part 1

The Updated Guidance for Sulfur Dioxide Area Designations was released by EPA on March 20, 2015. The main purpose of this document is to define the schedule and process for designating areas for the 2010 primary 1-hour SO2 NAAQS. EPA issued the … Continue reading

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