Site Name County Site ID 2010 2011 2012 2013 2014 2015

Units:

SD School Minnehaha 46-099-0008 NA 1.4 1.6 1.3 1.3 1.0

Union County #1 Union 46-127-0001 1.0 0.4 0.7 0.6 NA NA

Units:

SD School Minnehaha 46-099-0008 NA 0.9 0.9 0.5 0.5 0.7

Union County #1 Union 46-127-0001 0.3 0.3 0.4 0.3 NA NA

Site Name County Site ID 2010 2011 2012 2013 2014 2015

Units:

Badlands Jackson 46-071-0001 4 4 5 6 5 4

SD School Minnehaha 46-099-0008 41 42 41 36 35 NV

Rapid City Credit Union Pennington 46-103-0020 NA NV NV NV 38 37

Union County #1 Union 46-127-0001 NV 18 NV NV NV 20

Union County #2 Union 46-127-0002 NV NV 30 37 NV NV

Units:

Badlands Jackson 46-071-0001 0.5 0.9 0.9 1.0 0.7 0.9

SD School Minnehaha 46-099-0008 6.6 6.2 6.2 5.4 5.0 4.7

Rapid City Credit Union Pennington 46-103-0020 NA 8.4 7.5 7.5 6.7 7.3

Union County #1 Union 46-127-0001 3.0 3.0 3.5 2.9 3.0 3.0

Union County #2 Union 46-127-0002 2.9 2.6 5.8 3.8 NA NA

- The NO 2

 1-hour design values are calculated as the 98th percentile of 1-hour daily maximum concentrations averaged over three years. The NO2 1-year design 

values are calculated as the annual mean. For details please refer to 40 CFR Part 50 Appendix S, which can be accessed at www.ecfr.gov.

- NA - Not Available. The station was not operating during the indicated year.

- NV - Not Valid. The station does not have sufficient record (three full years) to calculate a valid design value.

ppb

Table 2. South Dakota Nitrogen Dioxide Design Values (2010-2015)

Primary 1-Hour NAAQS - 100 ppb (2010)

ppb

Primary Annual NAAQS - 53 ppb (1971)

- The NO 2 1-hour and annual NAAQS values should not be exceeded. Please refer to www3.epa.gov/ttn/naaqs/standards/nox/s_nox_history.html for additional 

information. 

- The CO primary 1-hour and 8-hour NAAQS values were established in 1971. Please refer to www3.epa.gov/airquality/carbonmonoxide/ for additional 

information.

- The CO 1-hour and 8-hour NAAQS values should not be exceeded more than once per year. Therefore, the second highest annual value is presented for each 

averaging period. 

- NA - Not Available. The station was not operating during the indicated year.

Table 1. South Dakota CO Maximum Values (2010-2015)

Primary 1-Hour NAAQS - 35 ppm (1971)

ppm

Primary 8-Hour NAAQS - 9 ppm (1971)

ppm
Site Name County Site ID 2010 2011 2012 2013 2014 2015

Units:

Research Farm Brookings 46-011-0003 59 61 65 64 63 62

Wind Cave Custer 46-033-0132 NV 60 62 63 62 59

Badlands Jackson 46-071-0001 55 54 58 59 61 58

Black Hawk Meade 46-093-0001 58 57 60 NV 62 59

SD School Minnehaha 46-099-0008 62 63 67 68 68 64

Union County #1 Union 46-127-0001 NA NA NA NV NV 62

Union County #3 Union 46-127-0003 NV 61 64 NV NV NA

Site Name County Site ID 2010 2011 2012 2013 2014 2015

Units:

Brookings City Hall Brookings 46-011-0002 8.4 8.4 8.4 8.3 8.2 NV

Research Farm Brookings 46-011-0003 NA NA NA NA NA NV

Aberdeen Fire Station Brown 46-013-0003 8.2 8.0 7.8 7.3 7.0 6.6

Watertown Codington 46-029-0002 9.0 8.5 9.3 9.6 8.4 7.1

Wind Cave Custer 46-033-0132 4.9 4.5 4.3 3.9 3.4 3.2

Pierre Airport Hughes 46-065-003 NA NA NA NA NA NV

Badlands Jackson 46-071-0001 4.4 3.8 3.8 4.3 4.6 4.7

Kelo Site Minnehaha 46-099-0006 9.2 9.0 8.9 8.7 8.3 NV

SD School Minnehaha 46-099-0008 9.4 9.1 8.2 7.8 7.5 8.3

Rapid City Credit Union Pennington 46-103-0020 6.3 5.3 5.3 6.2 6.7 7.8

Rapid City Library Pennington 46-103-1001 6.4 5.9 5.9 5.8 5.8 5.7

Union County #1 Union 46-127-0001 NV 8.8 9.6 9.4 9.1 8.5

Union County #2 Union 46-127-0002 NV 8.7 8.4 8.7 NV NV

Units:

Brookings City Hall Brookings 46-011-0002 23 23 22 21 20 NV

Research Farm Brookings 46-011-0003 NA NA NA NA NA NV

Aberdeen Fire Station Brown 46-013-0003 26 23 23 21 21 18

Watertown Codington 46-029-0002 25 22 21 20 19 18

Wind Cave Custer 46-033-0132 13 13 13 12 10 13

Pierre Airport Hughes 46-065-003 NA NA NA NA NA NV

Badlands Jackson 46-071-0001 12 11 12 12 13 16

Kelo Site Minnehaha 46-099-0006 25 24 23 21 20 NV

SD School Minnehaha 46-099-0008 27 24 22 20 21 22

Rapid City Credit Union Pennington 46-103-0020 16 14 15 15 16 20

Rapid City Library Pennington 46-103-1001 19 18 19 16 17 18

Union County #1 Union 46-127-0001 NV 24 24 22 22 22

Union County #2 Union 46-127-0002 NV 24 24 22 NV NV

Table 3. South Dakota Ozone Design Values (2010-2015)

Primary 8-Hour NAAQS - 75 ppb (2008)

- The 2008 Ozone 8-hour NAAQS is 75ppb. This NAAQS was reduced to 70 ppb on October 26th, 2015. Please refer to www.epa.gov/ozone-pollution/tablehistorical-ozone-national-ambient-air-quality-standards-naaqs for additional information. 

- Ozone Design Values are calculated as the annual fourth-highest daily maximum 8-hour concentration averaged over three years. For details please refer to 40 

CFR Part 50 Appendix U, which can be accessed at www.ecfr.gov.

- NA - Not Available. The station was not operating during the indicated year.

- NV - Not Valid. The station does not have sufficient record (three full years) to calculate a valid design value.

μg/m3

ppb

Table 4. South Dakota PM2.5 Design Values (2010-2015)

Primary Annual NAAQS - 12 μg/m3 (2012)

- The PM 2.5 annual and 24-hour NAAQS values should not be exceeded. Please refer to www3.epa.gov/ttn/naaqs/standards/pm/s_pm_history.html for 

additional information. 

- The PM 2.5 annual design values are calculated as the annual means averaged over three years. The PM2.5 24-hour design values are calculated as the 98th 

percentile of the 24-hour values averaged over three years. For details please refer to 40 CFR Part 50 Appendix U, which can be accessed at www.ecfr.gov

Primary 24-Hour NAAQS - 35 μg/m3 (2012)

- NA - Not Available. The station was not operating during the indicated year.

- NV - Not Valid. The station does not have sufficient record (three full years) to calculate a valid design value.

μg/m3
Site Name County Site ID 2013 2014 2015

Brookings City Hall Brookings 46-011-0002 0.0 0.0 NA

Research Farm Brookings 46-011-0003 NA NA 0.0

Aberdeen Fire Station Brown 46-013-0003 0.0 0.0 0.0

Watertown Codington 46-029-0002 0.0 0.0 0.0

Wind Cave Custer 46-033-0132 0.0 0.0 0.0

Badlands Jackson 46-071-0001 0.0 0.0 0.0

Black Hawk Meade 46-093-0001 0.0 0.0 0.0

SD School Minnehaha 46-099-0008 0.0 0.0 0.0

Camp Armory Pennington 46-103-0013 0.0 NA NA

Rapid City Credit Union Pennington 46-103-0020 0.0 0.0 1.0 *

Rapid City Library Pennington 46-103-1001 0.0 0.0 0.0

Union County #1 Union 46-127-0001 0.0 0.0 0.0

Union County #2 Union 46-127-0002 0.0 NA NA

Site Name County Site ID 2010 2011 2012 2013 2014 2015

Units:

Wind Cave Custer 46-033-0132 NV NV NV NA NA NA

Badlands Jackson 46-071-0001 6 7 6 6 5 6

SD School Minnehaha 46-099-0008 14 6 5 4 6 5

Rapid City Credit Union Pennington 46-103-0020 NA NV NV 9 9 7

Union County #1 Union 46-127-0001 NV 9 9 7 6 5

Union County #3 Union 46-127-0002 NV 8 8 7 NV NV

- NV - Not Valid. The station does not have sufficient record (three full years) to calculate a valid design value.

Table 5. South Dakota PM10 

Estimated Exceedances (2013-2015) and Second Maximum Values (2015)

Primary 24-hour NAAQS - 150 μg/m3 (2006)

- The PM10 24-hour NAAQS is the value that should not be exceeded more than once per year on average over three years. Please refer to 

www3.epa.gov/ttn/naaqs/standards/pm/s_pm_history.html for additional information. 

- The number of expected exceedances at a site is determined by recording the number of exceedances in each calendar year and then averaging them over the 

past three calendar years. For details please refer to 40 CFR Part 50 Appendix K, which can be accessed at www.ecfr.gov.

- NA - Not Available. The station was not operating during the indicated year.

2015 Second Maximum Value

NA

82

- NV - Not Valid. The station does not have sufficient record (three full years) to calculate a valid design value.

ppb

Table 6. South Dakota Sulfur Dioxide Design Values (2010-2015)

Primary 1-Hour NAAQS - 75 ppb (2010)

- The primary 1-hour SO2 NAAQS is 0.075ppm. Please refer to www3.epa.gov/ttn/naaqs/standards/so2/s_so2_history.html for additional information. 

- SO 2 1-hour design values are calculated as the 99th percentile of 1-hour daily maximum concentrations averaged over three years. For details please refer to 40 

CFR Part 50 Appendix T, which can be accessed at www.ecfr.gov.

- NA - Not Available. The station was not operating during the indicated year.

- * The State has flagged exceptional events which, if concurred with, would reduce these values.

Estimated Exceedences μg/m3

88 *

NA

61

NA

122 *

37

43

70

60 *

41

32