Environmental Services Program

1420 E. Wisdom Lane

Site Operator: City Utilities of Springfield

Pollutants Monitored: Sulfur Dioxide (SO2)


Sulfur Dioxide (SO2)

Updated: Monthly.

National Ambient Air Monitoring Standard: A three-hour average of 0.50 ppm (parts per million) and/or a 24-hour average of 0.14 ppm (parts per million) and/or an annual average of 0.03 ppm (parts per million). Data reported in three decimal places must be rounded to two decimal places.

Exceedances allowed without a violation being recorded: One per year.

Disclaimer: Yearly and quarterly data shown below has been subject to data review and validation procedures by the reporting agency. Monthly data and data shown graphically is raw, unreviewed and unvalidated data.

Sulfur Dioxide (SO2)

The units for all averages in this chart are parts per million.
Year Number of
Exceedances
Annual
Average
Maximum
24-Hour Average
Maximum
3-Hour Average
Maximum
1-Hour Average
2002 0 .0014 .007 .017 .033
2003 0 .0018 .009 .029 .042
2004 0 .0021 .008 .024 .056
2005 0 .0020 .009 .030 .057
2006 0 .0016 .011 .039 .062
2007 0 .0013 .004 .013 .025
2008 (Site closed 2008)

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