South Charleston, Springfield
Site Operator:Missouri Department of Natural Resources' Environmental Services Program.
Pollutants Monitored: Sulfur Dioxide (SO2)
National Ambient Air Quality 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.|
|99th Percentile 1-Hour Average|
|This site was take over by Environmental Services Program on September 1, 2011.|
|The units for all averages below this line are reported as parts per million.|