Environmental Services Program
Clarksville
Site Operator: Missouri Department of Natural Resources' Environmental Services Program
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.
| Year | Number of Exceedances |
Annual Average |
Maximum 24-Hour Average |
Maximum 3-Hour Average |
Maximum 1-Hour Average |
|---|---|---|---|---|---|
| 2005 | 0 | .0031 | .016 | .048 | .074 |
| 2006 | 0 | .0031 | .015 | .057 | .113 |
| 2007 | 0 | .0028 | .013 | .052 | .135 |
| 2008 | |||||
| First Quarter | 0 | .0032 | .014 | .058 | .160 |
| Second Quarter | 0 | ||||
| Third Quarter | Not Available | ||||
| Instrument Removed Second Quarter 2008 | |||||
Beginning | Index | Current Data | Site Map | Northern Mo.
