Environmental Services Program

2230 East Wildwood 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.

The units for all averages in this section are reported in parts per billion.
Year Number of
Exceedances
Annual
Average
Maximum
1-Hour Average
Maximum
24-Hour Average
99th Percentile 1-Hour Average
2012
First Quarter 0 1.92 45.9 17.7 29.4
Second Quarter 0
Third Quarter  
2012 0 2.63 72.7 29.5 51.6
2011 0 2.01 125.3 40.1 67.1
2010 0 1.52 132.0 51.3 83.0
The units for all averages below this line are reported as parts per million.
Year Number of
Exceedances
Annual
Average
Maximum
24-Hour Average
Maximum
3-Hour Average
Maximum
1-Hour Average

Sulfur Dioxide (SO2)

2002 0 0.0021 0.047 0.116 0.203
2003 0 0.0024 0.032 0.072 0.086
2004 0 0.0032 0.017 0.068 0.092
2005 0 0.0028 0.030 0.112 0.138
2006 0 0.0022 0.032 0.076 0.113
2007 0 0.0021 0.032 0.088 0.111
2008 0 0.0026 0.023 0.075 0.098
2009 0 0.0018 0.032 0.064

0.094

 

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