Sulfur Dioxide
National Summary
State and Local Summaries
National Summary of Sulfur Dioxide Emissions
EPA prepares a national database of air emissions information with input from numerous state and local air agencies, from tribes, and from industry. The chart below shows the national summary of sulfur dioxide (SO2) emissions by source sector based on the most recent inventory. View information on air quality standards, trends, health effects, and programs to reduce SO2.
![Note to users of screen readers: The following links provide the chart data for national sulfur dioxide emissions by source sector.](images/spacer.gif)
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State and Local Summary of Sulfur Dioxide Emissions
Sources of air pollutant emissions vary from one area to another. State and local summaries are available from the maps below.
![Map of the United States](images/us-states.gif)