Appendix C: Pollutants Causing Visibility Impairment

Appendix to Chapter 7 of the

State Implementation Plan

Appendix to Chapter 7 of the.......................................................................................................... 1

State Implementation Plan .............................................................................................................. 1

Overview of data sources............................................................................................................ 2

Statewide Base Year Aerosol Light Extinction .......................................................................... 3

Craters of the Moon Data............................................................................................................ 3

Hells Canyon Wilderness Data ................................................................................................... 5

Sawtooth Wilderness Data.......................................................................................................... 7

Selway-Bitterroot Data ............................................................................................................... 9

Yellowstone National Park ....................................................................................................... 11
Appendix C Page 2

Overview of data sources

The data relied upon for Chapter 7 came from the WRAP TSS website and is available at:

http://vista.cira.colostate.edu/TSS/Results/HazePlanning.aspx

By selecting a location from the map, views are given the option of viewing monitoring,

emission inventory or modeling data. For this Chapter monitoring data for the individual Class I

areas. The TSS website allows users to view information in a stack bar or line graph for the 20%

best or worst days, by pollutant in either dv or concentration levels.

The “The Class I Summary Table” option was used to develop information for the statewide and

individual Class I “Aerosol Light Extinction” 3-D bar graphs as in Figure 7-1 data.

Information for the pie charts in Chapter 7 utilized the TSS monitoring data from the base year

2002 worst 20% days. The data is available by selecting the Class I are of interest from the TSS

website map, then select “Monitoring” from the box below. Select “Total Light Extinction Time

Series” and the pollutant and years of interest from the pull down table. If the data isn’t displayed

below the graph, click on “+Show Data.”
Appendix C Page 3

Statewide Base Year Aerosol Light Extinction

Figure 7-1 Data

Idaho Class I Area Base Year Aerosol Light Extinction

2000-04

Baseline

Conditions

Craters of

the Moon

2000-04

Baseline

Conditions

Hells

Canyon

2000-04

Baseline

Conditions

Sawtooth

Wilderness

2000-04

Baseline

Conditions

Selway

Wilderness

2000-04

Baseline

Conditions

Yellowstone

(Mm-1) (Mm-1) (Mm-1) (Mm-1) (Mm-1)

Amm.

Sulfate 5.69 8.37 3.06 4.83 4.26

Amm.

Nitrate 11.35 28.47 0.63 1.46 1.77

Organic

Carbon 9.06 15.6 22.24 20.01 13.48

Elemental

Carbon 1.92 3.06 4.2 2.52 2.48

Fine Soil 1.04 0.66 0.77 0.94 0.95

Coarse

Material32.95 1.93 1.74 2.49 2.58

Sea Salt30.03 0.05 0.12 0.26 0.02

Total

Light

Extinction 42.05 56.21 42.77 42.52 34.55

Deciview 14 18.55 13.78 13.41 11.76

Craters of the Moon Data

Data Figure 7-2

Craters of the Moon NM 2002 20% Worst Days

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

CRMO1 NIA 2001 21 7.99 16.02 4.3 1.4 1.36 2.76 0

CRMO1 NIA 2002 23 4.49 13.84 10.68 2.06 1.05 2.68 0.01

CRMO1 NIA 2003 21 4.23 6.92 14.77 2.53 0.86 3.46 0

CRMO1 NIA 2004 23 6.07 8.61 6.49 1.69 0.9 2.89 0.12
Appendix C Page 4

Data Figure 7-10

Class I Area Visibility Summary: Craters of the Moon NM, ID

Visibility Conditions: Worst 20% Days

RRF Calculation Method: Specific Days (EPA)

Emissions Scenarios: 2000-04 Baseline (plan02d) & 2018 PRPb (prp18b)

Monitore

d Estimated Projected

2000-04

Baseline

Conditions

2018

Unifor

m Rate

of

Progres

s Target

2064

Natural

Condition

s

2018

Unifor

m Rate

of

Progres

s Target

2018

Projected

Visibility

Condition

s

Baseline

to 2018

Change

In

Statewide

Emission

s

Baseline

to 2018

Change In

Upwind

Weighted

Emissions

2

Baseline to

2018 Change

In

Anthropogeni

c Upwind

Weighted

Emissions2

(Mm-1)

(Mm1)1

(Mm-1)

(Mm1)1

(Mm-1) (tons / %) (%) (%)

Amm. -13,272

Sulfate 5.69 4.39 0.83 4.39 5.35 -34% -25% -30%

Amm. -32,418

Nitrate 11.35 8.31 1.05 8.31 8.3 -19% -27% -34%

Organic -4,416

Carbon 9.06 7.73 3.98 7.73 8.73 -8% -5% -25%

Elementa -2,084

l Carbon 1.92 1.54 0.36 1.54 1.51 -15% -17% -50%

2,350

Fine Soil 1.04 1.08 1.2 1.08 1.23 16% 9% 15%

Coarse 13,507

Material3

2.95 3.2 4.05 3.2 20% 12% 27%

Sea Salt30.03 0.04 0.06 0.04

Not

Applicabl

e

Total

Light

Extinctio

n 32.04 26.29 11.53 35.96 38.11

Deciview 14 12.49 7.53 12.49 13.06 Not Applicable

Reductio

n Needed 5.75 20.51

Base year

and

reduction

in dv 14 1.51 6.47
Appendix C Page 5

Hells Canyon Wilderness Data

Data Figure 7-11

Hells Canyon Wilderness Area 20% Worst Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

HECA1 NIA 2001 23 9.95 32.88 11.36 2.94 0.68 1.35 0

HECA1 NIA 2002 22 6.58 20.03 20.75 3.69 0.75 1.96 0.01

HECA1 NIA 2004 25 8.59 32.5 14.71 2.55 0.56 2.48 0.13

Data Figure 7-17

Hells Canyon Wilderness Area 20% Best Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

HECA1 NIA 2001 22 2.21 1.03 1.61 0.55 0.24 0.7 0.11

HECA1 NIA 2002 21 1.91 0.79 2.29 0.74 0.32 0.9 0.04

HECA1 NIA 2004 24 1.68 0.53 2.14 0.46 0.19 0.81 0.08
Appendix C Page 6

Data Figure7-19

Class I Area Visibility Summary: Hells Canyon W, ID

Visibility Conditions: Worst 20% Days

RRF Calculation Method: Specific Days (EPA)

Emissions Scenarios: 2000-04 Baseline (plan02d) & 2018 PRPb (prp18b)

Monitored Estimated Projected

2000-04

Baseline

Conditions

2018

Uniform

Rate of

Progress

Target

2064

Natural

Conditions

2018

Projected

Visibility

Conditions

Baseline

to 2018

Change

In

Statewide

Emissions

Baseline

to 2018

Change In

Upwind

Weighted

Emissions2

Baseline to

2018 Change

In

Anthropogenic

Upwind

Weighted

Emissions2

(Mm-1)

(Mm1)1

(Mm-1) (Mm-1) (tons / %) (%) (%)

Amm. -20,912

Sulfate 8.37 6.35 1.14 7.49 -40% -29% -38%

Amm. -96,079

Nitrate 28.47 19.69 2.67 19.91 -37% -22% -30%

Organic -3,120

Carbon 15.6 12.12 3.69 11.54 -3% -12% -31%

Elemental -3,043

Carbon 3.06 2.37 0.37 2.65 -11% -21% -44%

-909

Fine Soil 0.66 0.72 0.92 0.74 -3% 10% 15%

Coarse 31,039

Material31.93 2.26 3.4 47% 12% 27%

Sea Salt30.05 0.05 0.05

Needed

Improvement 0 14.58 45.9

Sea Salt30.05 0.05 0.05

Not

Applicable

Total Light

Extinction 58.14 43.56 12.24 55.31

Deciview 18.55 16.17 8.32 16.49 Not Applicable

Dv needed 0 2.38 10.23
Appendix C Page 7

Sawtooth Wilderness Data

Data Figure 7-20

Sawtooth Wilderness Area 20% Worst Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

SAWT1 NIA 2001 22 3.47 0.79 23.94 5.63 1.07 2.33 0.28

SAWT1 NIA 2002 22 2.13 0.57 22.51 4.95 0.76 1.55 0

SAWT1 NIA 2003 23 2.6 0.54 21.59 2.85 0.45 1.57 0.21

SAWT1 NIA 2004 24 4.05 0.62 20.92 3.38 0.8 1.52 0.01

Data Figure 7-28

Sawtooth Wilderness Area 20% Best Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

SAWT1 NIA 2001 22 1.74 0.36 2.81 0.88 0.14 0.33 0.04

SAWT1 NIA 2002 21 1.12 0.32 2.13 0.58 0.16 0.31 0

SAWT1 NIA 2003 22 0.83 0.22 1.92 0.46 0.09 0.31 0

SAWT1 NIA 2004 23 1.12 0.28 2.63 0.56 0.17 0.33 0.02
Appendix C Page 8

Figure 7-30

Class I Area Visibility Summary: Sawtooth W, ID

Visibility Conditions: Worst 20% Days

RRF Calculation Method: Specific Days (EPA)

Emissions Scenarios: 2000-04 Baseline (plan02d) & 2018 PRPb (prp18b)

Monitore

d Estimated Projected

2000-04

Baseline

Conditions

2018

Unifor

m Rate

of

Progres

s Target

2064

Natural

Condition

s

2018

Projected

Visibility

Condition

s

Baseline

to 2018

Change

In

Statewide

Emission

s

Baseline

to 2018

Change In

Upwind

Weighted

Emissions

2

Baseline to

2018 Change

In

Anthropogeni

c Upwind

Weighted

Emissions2

(Mm-1)

(Mm1)1

(Mm-1) (Mm-1) (tons / %) (%) (%)

Amm. -13,272

Sulfate 3.06 2.5 0.81 2.59 -34% -27% -35%

Amm. -32,418

Nitrate 0.63 0.65 0.7 0.54 -19% -25% -32%

Organic -4,416

Carbon 22.24 16.51 3.94 20.81 -8% -7% -26%

Elemental -2,084

Carbon 4.2 3.2 0.38 3.73 -15% -16% -44%

2,350

Fine Soil 0.77 0.81 0.94 0.79 16% 12% 18%

Coarse 13,507

Material31.74 1.89 2.39 20% 15% 31%

Sea Salt30.12 0.12 0.13

Not

Applicabl

e

Total

Light

Extinctio

n 32.76 25.68 9.29 40.32

Deciview 13.78 12.06 6.42 13.22 Not Applicable

Reductio

n Needed 0 7.08 23.47

Reductio

n Needed

dv 1.72 7.36
Appendix C Page 9

Selway-Bitterroot Data

Data Figure 7-31

Selway-Bitterroot Wilderness Area 20% Worst Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

SULA1 NIA 2001 24 4.78 1.26 11.47 1.95 1.56 3.7 1.01

SULA1 NIA 2002 24 4.63 1.58 12.59 2.05 0.91 2.45 0

SULA1 NIA 2003 23 4.78 1.57 43.26 4.34 0.59 1.75 0

SULA1 NIA 2004 24 5.14 1.45 12.73 1.75 0.69 2.08 0.01

Data Figure 7-39

Selway-Bitterroot Wilderness Area 20% Best Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

SULA1 NIA 2001 23 1.32 0.43 0.96 0.29 0.21 0.3 0.1

SULA1 NIA 2002 23 1.14 0.39 1.02 0.32 0.07 0.21 0

SULA1 NIA 2003 22 0.69 0.18 0.77 0.16 0.04 0.13 0.01

SULA1 NIA 2004 23 1.23 0.36 0.99 0.33 0.06 0.21 0.01
Appendix C Page 10

Data Figure 7-41

Class I Area Visibility Summary: Anaconda-Pintler W, MT: SelwayBitterroot W, MT

Visibility Conditions: Worst 20% Days

RRF Calculation Method: Specific Days (EPA)

Emissions Scenarios: 2000-04 Baseline (plan02d) & 2018 PRPb (prp18b)

Monitored Estimated Projected

2000-04

Baseline

Conditions

2018

Uniform

Rate of

Progress

Target

2064

Natural

Conditions

2018

Projected

Visibility

Conditions

Baseline

to 2018

Change

In

Statewide

Emissions

Baseline

to 2018

Change In

Upwind

Weighted

Emissions2

Baseline to

2018 Change

In

Anthropogenic

Upwind

Weighted

Emissions2

(Mm-1)

(Mm1)1

(Mm-1) (Mm-1) (tons / %) (%) (%)

Amm. -6,128

Sulfate 4.83 3.86 1.1 4.32 -12% -15% -29%

Amm. -63,099

Nitrate 1.46 1.38 1.12 0.96 -26% -21% -37%

Organic -1,587

Carbon 20.01 15.46 4.84 19.09 -3% -2% -20%

Elemental -1,971

Carbon 2.52 2 0.43 2.4 -17% -6% -39%

5,807

Fine Soil 0.94 0.93 0.91 1.02 14% 10% 17%

Coarse 54,709

Material32.49 2.54 2.7 19% 13% 33%

Sea Salt30.26 0.26 0.27

Not

Applicable

Reduction

Needed 0 6.08 21.14

Total

Light

Extinction 32.51 26.43 11.37 40.54

Deciview 13.41 12.02 7.43 12.94 Not Applicable

Dv

needed 0 1.39 5.98
Appendix C Page 11

Yellowstone National Park

Data Figure 7-42

Yellowstone National Park Area 20% Worst Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

YELL2 NIA 2000 20 4.16 1.97 18.45 3.65 0.8 2.84 0

YELL2 NIA 2001 22 4.71 2.36 16.11 2.61 1.39 2.69 0

YELL2 NIA 2002 22 3.8 1.63 11.16 1.87 1.21 3.12 0.03

YELL2 NIA 2003 21 4.07 1.43 12.8 2.33 0.44 1.3 0

YELL2 NIA 2004 23 4.57 1.46 8.89 1.94 0.92 2.94 0.07

Data Figure 7-50

Yellowstone National Park Area 20% Best Days Light Extinction

Site Method Year N

SO4

Extinction

NO3

Extinction

OMC

Extinction

EC

Extinction

Soil

Extinction

CM

Extinction

SeaSalt

Extinction

YELL2 NIA 2000 19 1.68 0.88 1.13 0.15 0.09 0.25 0.05

YELL2 NIA 2001 21 1.92 0.76 1.16 0.4 0.12 0.19 0

YELL2 NIA 2002 21 1.32 0.82 1.14 0.31 0.13 0.27 0

YELL2 NIA 2003 20 1.12 0.53 0.92 0.24 0.09 0.24 0

YELL2 NIA 2004 22 1.33 0.62 1.27 0.46 0.08 0.26 0.02
Appendix C Page 12

Data Figure 7-51

Class I Area Visibility Summary: Grand Teton NP, WY: Red Rock Lakes

NWRW, MT: Teton W, WY: Yellowstone NP, WY

Visibility Conditions: Worst 20% Days

RRF Calculation Method: Specific Days (EPA)

Emissions Scenarios: 2000-04 Baseline (plan02d) & 2018 PRPb (prp18b)

Monitored Estimated Projected

2000-04

Baseline

Conditions

2018

Uniform

Rate of

Progress

Target

2064

Natural

Conditions

2018

Projected

Visibility

Conditions

Baseline

to 2018

Change

In

Statewide

Emissions

Baseline

to 2018

Change In

Upwind

Weighted

Emissions2

Baseline to

2018 Change

In

Anthropogenic

Upwind

Weighted

Emissions2

(Mm-1)

(Mm1)1

(Mm-1) (Mm-1) (tons / %) (%) (%)

Amm. -22,794

Sulfate 4.26 3.35 0.76 3.71 -15% -26% -32%

Amm. -39,861

Nitrate 1.77 1.5 0.63 1.36 -14% -26% -34%

Organic -730

Carbon 13.48 11.02 4.61 12.87 -3% -4% -29%

Elemental -1,217

Carbon 2.48 1.97 0.43 2.2 -15% -11% -50%

5,223

Fine Soil 0.95 0.97 1.02 1.04 31% 14% 25%

Coarse 13,394

Material32.58 2.67 2.99 27% 19% 42%

Sea Salt30.02 0.02 0.03

Not

Applicable

Reductions

Needed 0 4.04 15.07

Total

Light

Extinction 25.54 21.5 10.47 32.77

Deciview 11.76 10.52 6.44 11.23 Not Applicable

Deciview

needed 0 1.24 5.32