# BART Exemption Modeling Report:

Georgia Power Company Plant Scherer

Prepared by:

Southern Company Services and ENSR Corporation for Georgia Power Company

September 2006September 2006 

### i 091506 Scherer BART Modeling Report.doc 

# Contents

1.0 Introduction...................................

................................................... ................................................... ...... 1-1

1.1 Objectives .........................................

................................................... ............................................ 1-1

1.2 Location of source vs. relevant Class I Areas ......

................................................... ....................... 1-1

2.0 Source description and emissions data ..........

................................................... .................................. 2-1

2.1 Unit-specific source data..........................

................................................... .................................... 2-1

3.0 Modeling results...............................

................................................... ................................................... .. 3-1

Appendix A Delta-Deciview Values for The Top 20 Day s – For Each Year/Each Class I Area and for the Top 25 Days – Over Three Years......

................................................... ............A-1September 2006 

### ii 091506 Scherer BART Modeling Report.doc 

# List of Tables

Table 2-1 Plant Scherer modeling emission parameters.........

................................................... ............. 2-3

Table 3-1 Summary of Results – Plant Scherer Refin ed BART Exemption Modeling......................... .. 3-1



# List of Figures

Figure 1-1 Location of PSD Class I Areas in relation to Plant Scherer ............................................ ........ 1-2September 2006 1-1 091506 Scherer BART Modeling Report.doc 

# 1.0 Introduction

1.1 Objectives

The Regional Haze Rule requires Best Available Retr ofit Technology (BART) for any BART-eligible source that ‘‘emits any air pollutant which may reasonably be a nticipated to cause or contribute to any impairment of visibility” in any mandatory Class I federal area. Pursuant to federal regulations, states have the o ption of exempting a BART-eligible source from the BART requ irements based on dispersion modeling demonstrating that the source cannot reasonably be anticipated to cause or contribute to visibility impairment in a Class I area. In addition, the Environmental Protection Ag ency (EPA) has promulgated a rule allowing states s ubject to the Clean Air Interstate Rule (CAIR) to determin e that CAIR satisfies the BART requirements for SO 2 

### and NO x 

### for electric generating units (EGUs). Feedback fr om the Georgia Environmental Protection Division indicates that CAIR satisfies BART for SO 2 

### and NO x 

### for EGUs. Therefore, this modeling report focuses on performing the BART modeling analysis for particula te matter (PM) only.

Units 1, 2, 3, and 4 at Plant Scherer, located near Smyrna, which is operated by Georgia Power Company

, has been identified as a BART-eligible source. The modeling procedures outlined in the source-specifi c BART modeling protocol for Plant Scherer were used to de termine whether the source is subject to BART requirements (exemption modeling). The modeling pr ocedures are consistent with those outlined in the updated final VISTAS common BART modeling protocol (dated December 22, 2005, revision 3 – July 18, 2006), available at http://www.vistas-sesarm.org/BART/BARTModelingProto col_rev3_18Jul2006.pdf . This source-specific BART modeling protocol references r elevant portions of the common VISTAS modeling protocol.



## 1.2 Location of source vs. relevant Class I Areas

The Georgia Environmental Protection Division, whic h is in charge of the state’s BART program, has determined that Units 1, 2, 3, and 4 at Plant Scher er are BART-eligible for PM. Figure 1-1 shows a pl ot of Plant Scherer relative to nearby Class I Areas. Th ere are six Class I areas within 300 km of the plan t: Cohutta (211.8 km), Great Smoky Mountains (265.3 km), Joyce Kilmer (256.3 km), Okefenokee (263.1 km), Shining Rock (268.3 km), and Wolf Island (299.4 km). The B ART exemption modeling was conducted for these Clas s I areas in accordance with the referenced VISTAS co mmon BART modeling protocol and the procedures described in the source-specific BART modeling prot ocol.September 2006 1-2 091506 Scherer BART Modeling Report.doc 

### Figure 1-1 Location of Class I Areas in Relation to Plant SchererSeptember 2006 2-1 091506 Scherer BART Modeling Report.doc 

# 2.0 Source description and emissions data

2.1 Unit-specific source data

The emissions data used to assess the visibility im pacts at the Class I areas within 300 km of Plant S cherer are discussed in this section. The Georgia Environ mental Protection Division has indicated that CAIR will satisfy BART for EGUs for SO 2 

### and NO x 

### . Therefore, this BART exemption modeling analysis focuses only on PM 10 

### . Since various components of PM 10 

### emissions have different visibility extinction eff iciencies, the PM 10 

### emissions are divided, or “speciated,” into several components (VISTAS common protocol Sections 4.3.3 and 4.4.2). The VISTAS protocol (Section 5) allows for the use of source-specific emissions and speciatio n factors and/or default values from AP-42. The PM 10 

### emissions and speciation approach that were used f or the modeling is indicated below. Where default speciat ion values are used, the data represents a unit whe re current (baseline) emission controls include electr ostatic precipitators (ESPs), but no post-combustio n NO x 

### or SO 2 

### control equipment exists.

• Total PM 10 

### is comprised of filterable and condensable emissio ns.

• Baseline filterable PM 10 

### emissions are based on the highest stack test for t he most recent 3-year period (2003-2005). This stack test is combined wi th the highest 24 hour heat input value for this period from CEMS data to calculate the “maximum 24 hour average emission rate” as required by the VISTAS protocol.

• Filterable PM 10 

### has been subdivided by size category consistent wi th the default approach from AP-42 Table 1-1.6, and as noted on pages 43 and 44 of the VISTAS common BART modeling protocol. The AP-42 Table 1-1.6 specifies for the emission contro ls indicated above that 55.6% of filterable PM 10 

### emissions is coarse (greater than 2.5 microns in si ze) and 44.4% is fine. Of the fine portion, 3.7% i s elemental carbon and the remainder is inorganic fin e particulates (soil).

• Condensable PM 10 

### consists of inorganic and organic compounds. The inorganic portion is by default assumed to be H 2 

### SO 4 

### , although other non-sulfate inorganic condensables could be present. The organic portion is modeled as organic aerosols.

• Baseline H 2 

### SO 4 

### emissions are calculated consistent with the metho d used by Georgia Power to derive these emissions for TRI purposes. This approach as sumes that the H 2 

### SO 4 

### emissions released from the stack are proportional to SO 2 

### emissions from combustion and are dependent on the fuel type and the removal of H 2 

### SO 4 

### by downstream equipment (i.e., ESP and air heater) . For Powder River Basin (PRB) coal the baseline H 2 

### SO 4 

### release rate is in the range of 0.1 to 0.3% of the SO 2 

### emissions. Appendix A of the site-specific modeling protocol p rovides the basis for the site-specific values used

.

• Baseline emissions of condensable organics (the rem aining portion of condensable PM 10 

### ) are derived based on the supporting field observational informa tion in Appendix B of the site-specific modeling protocol and is estimated as 0.32% of SO 2 

### emitted.

• Coarse filterable particles (between 2.5 and 10 mic rons in size) will be modeled with a geometric mass mean diameter of 5 microns, while fine filterable a nd all condensable particles will be modeled with a geometric mass mean diameter of 0.48 microns, consi stent with the CALPUFF default value for fine particles. The geometric standard deviation for bo th fine and coarse particles will be set to 2 micro ns, consistent with the CALPUFF default value. The 0.48 micron diameter value for fine particles comes from the default values in sample input files prese nted on the TRC web site. There is no default value presented for the coarse particles on the TRC web site. However, since 5 is the geometric mass mean diameter of 2.5 and 10 (the bounds of coa rse particle sizes), it is a reasonable estimate for the geometric mass mean diameter for that class of particles.

In practice, CALPUFF allows for the user to input c ertain components of PM 10 

### as separate species and separate sizes, which will result in more accurate wet and dry deposition velocity results and also mo reSeptember 2006 2-2 091506 Scherer BART Modeling Report.doc 

### accurate effects on light scattering. As noted abo ve, the particle size distribution information is p rovided in AP-42 Table 1-1.6, and will be used for the BART ex emption modeling.

Table 2-1 provides a summary of the modeling emissi on parameters used in the BART CALPUFF modeling, consistent with the source emissions data presented in Appendices A and B of the site-specific modelin g protocol for the baseline. All of the emissions in Table 2-1 were derived from CEMS data for the 2003 to 2005 period and represent the maximum 24-hour average lb /hr rates (excluding days where startup, shutdown, or malfunctions occurred). For NO x 

### and SO 2 

### the values are directly from CEMS. Filterable PM 10 

### emissions were calculated using the highest stack test over the 20 03 to 2005 period and multiplying these values time s the maximum 24-hour average heat input derived from CEM S. These values were then adjusted using AP-42 factors from Table 1.1-6 that indicate that PM 10 

### is 67% of total PM for a pulverized coal unit with an ESP. PM 10 

### speciation was then performed as indicated above su ch that total Filterable PM 10 

### is made up of Coarse Soil plus total Fine PM and total Fine PM is made up of Fine Soil plus Elemental Carbon (EC).September 20062-3091506 Scherer BART Modeling Report.docTable 2-1 Plant Scherer modeling emission parametersLocation UTM(Zone 17 NAD-83)Emissions1Particle Speciation2CaseSource/ UnitUTMEastUTMNorthActualStack HtBaseElev.FlueDiameterGasExitVel.StackGasExitTemp.SO2NOXPM10Filt.PM10CoarseSoilFinePMFineSoilECCond.PM10H2SO4Organicm m m m m m/s deg K lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hrlbs/hr lbs/hr lbs/hrBaseline Data - Current Configuration (Unit Basis)Baseline Unit 1 237,891 3,661,258 308.4142.38.2 23.2 409.7 8779.75 3557.33 169.67 117.62 65.3952.22 50.29 1.93 52.06 23.96 28.10Baseline Unit 2 237,891 3,661,258 308.4142.38.2 23.2 409.7 8716.33 2460.17 179.30 125.85 69.9755.88 53.81 2.07 53.45 25.56 27.89Baseline Unit 3 237,891 3,661,258 308.4142.38.2 24.2 400.8 8473.19 1471.92 111.32 76.03 42.28 33.76 32.51 1.25 35.29 8.18 27.11Baseline Unit 4 237,891 3,661,258 308.4142.38.2 24.2 400.8 8662.50 1518.75 89.27 53.19 29.57 23.62 22.74 0.87 36.08 8.36 27.72Baseline Data - Current Configuration (Stack Basis)ModeledStk Ht3Eq.Dia.m m m m m m/s deg K lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hr lbs/hrlbs/hr lbs/hr lbs/hrStack 1 1&2 237,891 3,661,258 214.6142.311.6 23.2 409.717496.086017.50 348.97 243.46135.37 108.10 104.104.00105.5149.52 55.99Stack 2 3&4 237,891 3,661,258 214.6142.311.6 23.2 400.817135.692990.67 200.59 129.22 71.85 57.38 55.25 2.12 71.3716.53 54.83Stack Basis Emissions Converted to g/sec g/sec g/sec g/sec g/secg/sec g/sec g/secg/secg/sec g/sec g/secStack 1 1&2 237,891 3,661,258 214.6142.311.6 23.2 409.7 2204.51 758.21 43.97 30.68 17.06 13.62 13.12 0.50 13.29 6.24 7.05Stack 2 3&4 237,891 3,661,258 214.6142.311.6 23.2 400.8 2159.10 376.82 25.27 16.28 9.05 7.23 6.96 0.27 8.99 2.08 6.911SO2and NOxemissions are not BART-applicable for EGU sourcesin CAIR states, if the state agency agrees with EPA’s interpretation of the BART final rule. Theemissions for SO2and NOxare provided for information purposes, and for reference in the computation of certain particle species such as H2SO4.2Elemental carbon (EC) and Fine PM are a part of Filterable PM10and H2SO4and Organics are a part of Condensable PM10. Note that H2SO4is input to CALPUFF asSO4. The molecular weights of H2SO4and SO4are 98 and 96 respectively, therefore the conversion factor from H2SO4to SO4is 96/98.3Stack credit is equal to GEP. GEP of 704 ft (214.6 m) is less than actual height therefore GEP height is used for modeling.September 2006 3-1 091506 Scherer BART Modeling Report.doc 

# 3.0 Modeling results

The exemption modeling results are provided in Tabl e 3-1, and Appendix A lists delta-deciview results for the top 20 days for each year modeled and the top 25 da ys for the overall three years at each Class I area . The table indicates that both the 8 th 

### highest day’s impacts for each year and the 22 nd 

### highest day’s impacts over all three years are below 0.5 delta-dv. These results demonstrate that Plant Scherer’s PM 10 

### emissions do not cause or contribute to visibility impairment. Ther efore, the source is not subject to BART for PM 10 

### , and no further BART analysis is required.

Electronic data related to this application are pro vided on the attached disk. They include all input (INP) and list (LST) files.September 2006 3-1 091506 Scherer BART Modeling Report.doc 

### Table 3-1 Summary of Results – Plant Scherer Refine d BART Exemption Modeling

2001 2002 2003

Class I area Distance

from source

to Class I

area boundary # of days and

receptors beyond 98 th

percentile with impact > 0.5

delta-dv 8 th

Highest

delta-dv # of days and

receptors beyond 98 th

percentile with impact > 0.5

delta-dv 8 th

Highest

delta-dv # of days and

receptors beyond 98 th

percentile with impact > 0.5

delta-dv 8 th

Highest

delta-dv Highest of

8 th Highest

delta-dv

for the 3-

years 22 nd

Highest

delta-dv

over 3-

year period

Km Days Rec delta-dv Days Rec delta-dv Days Rec de lta-dv delta-dv delta-dv

Cohutta 211.8 0 0 0.08 0 0 0.06 0 0 0.08 0.08 0.08

Great Smoky Mountains 265.3 0 0 0.06 0 0 0.05 0 0 0.07 0.07 0.06

Joyce Kilmer 256.3 0 0 0.05 0 0 0.05 0 0 0.07 0.07 0.06

Shining Rock 268.3 0 0 0.05 0 0 0.06 0 0 0.06 0.06 0.05

Okefenokee 263.1 0 0 0.07 0 0 0.08 0 0 0.06 0.08 0.07

Wolf Island 299.4 0 0 0.05 0 0 0.06 0 0 0.04 0.06 0.05

# Appendix A

Delta-Deciview Values for the Top 20 Days – for Eac h Year/Each Class I Area and for the Top 25 Days – Over Three Y ears

### Ranked Daily Visibility Change for Cohutta (Top 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 327 97 7.759 7.599 0.160 3.4 54.22 0.00 27.03 3.69 5.45 9.61 1 2001 123 97 7.703 7.599 0.105 3.4 55.20 0.00 27.07 3.73 4.28 9.72 2 2001 287 16 7.700 7.599 0.102 3.8 57.91 0.00 25.50 3.50 3.95 9.14 3 2001 129 9 7.697 7.599 0.099 3.4 54.52 0.00 26.70 3 .68 5.51 9.59 4 2001 36 97 7.691 7.599 0.092 3.1 52.06 0.00 28.10 3 .86 5.92 10.07 5 2001 30 97 7.687 7.599 0.088 3.3 54.71 0.00 27.69 3 .81 3.86 9.93 6 2001 229 9 7.677 7.599 0.078 4.2 59.39 0.00 23.62 3 .25 5.27 8.47 7 2001 328 16 7.675 7.599 0.077 3.4 55.23 0.00 26.61 3.70 4.80 9.66 8 2001 340 45 7.673 7.599 0.074 3.5 54.45 0.00 26.49 3.60 6.06 9.39 9 2001 286 3 7.672 7.599 0.073 3.8 58.22 0.00 25.88 3 .54 3.14 9.22 10 2001 27 1 7.664 7.599 0.066 3.3 54.25 0.00 27.40 3. 77 4.74 9.84 11 2001 198 3 7.664 7.599 0.065 4.0 59.60 0.00 24.90 3 .42 3.15 8.93 12 2001 307 9 7.663 7.599 0.064 3.4 54.97 0.00 26.52 3 .69 5.22 9.62 13 2001 113 54 7.656 7.599 0.058 2.8 50.69 0.00 29.77 4.13 4.63 10.78 14 2001 124 16 7.654 7.599 0.055 3.4 54.08 0.00 26.43 3.65 6.34 9.51 15 2001 358 214 7.650 7.599 0.052 3.5 55.93 0.00 26.64 3.67 4.19 9.57 16 2001 178 3 7.645 7.599 0.047 3.8 57.94 0.00 25.66 3 .51 3.73 9.16 17 2001 121 115 7.645 7.599 0.047 2.8 50.96 0.00 30.12 4.17 3.90 10.86 18 2001 56 181 7.646 7.599 0.047 3.1 51.47 0.00 28.93 3.88 5.59 10.12 19 2001 199 97 7.644 7.599 0.046 4.0 59.49 0.00 25.04 3.43 3.10 8.94 20

2002 223 8 7.774 7.599 0.176 4.2 60.00 0.00 23.80 3 .28 4.37 8.55 1 2002 51 181 7.762 7.599 0.163 3.1 52.21 0.00 28.75 3.90 4.96 10.18 2 2002 99 97 7.718 7.599 0.119 2.8 50.86 0.00 30.19 4 .16 3.93 10.86 3 2002 276 25 7.688 7.599 0.089 3.8 57.45 0.00 25.11 3.46 4.94 9.04 4 2002 41 8 7.679 7.599 0.080 3.1 52.01 0.00 27.71 3. 84 6.45 10.00 5 2002 235 113 7.673 7.599 0.075 4.2 59.76 0.00 23.85 3.27 4.59 8.54 6 2002 263 9 7.672 7.599 0.073 4.2 59.57 0.00 23.76 3 .26 4.90 8.51 7 2002 298 9 7.662 7.599 0.064 3.8 56.12 0.00 25.97 3 .47 5.42 9.03 8 2002 148 182 7.661 7.599 0.063 3.4 55.37 0.00 27.23 3.74 3.89 9.76 9 2002 226 179 7.657 7.599 0.058 4.2 60.95 0.00 24.06 3.32 3.00 8.67 10 2002 222 214 7.654 7.599 0.056 4.2 60.62 0.00 24.08 3.31 3.34 8.64 11 2002 115 214 7.653 7.599 0.054 2.8 50.24 0.00 30.14 4.13 4.72 10.77 12 2002 157 8 7.646 7.599 0.048 3.8 58.10 0.00 25.41 3 .51 3.85 9.14 13 2002 47 9 7.647 7.599 0.048 3.1 51.63 0.00 28.00 3. 84 6.53 10.00 14 2002 71 16 7.643 7.599 0.044 3.0 52.12 0.00 27.21 3 .89 6.64 10.15 15 2002 225 3 7.642 7.599 0.043 4.2 61.20 0.00 24.25 3 .34 2.50 8.72 16 2002 98 16 7.640 7.599 0.042 2.8 50.64 0.00 29.44 4 .11 5.08 10.73 17 2002 227 214 7.639 7.599 0.040 4.2 61.21 0.00 24.17 3.34 2.58 8.71 18 2002 224 3 7.638 7.599 0.040 4.2 60.72 0.00 24.19 3 .32 3.09 8.67 19 2002 79 97 7.637 7.599 0.038 3.0 53.55 0.00 29.84 4 .10 1.82 10.70 20

2003 245 9 7.794 7.599 0.195 4.2 59.48 0.00 23.64 3 .25 5.16 8.48 1 2003 244 3 7.759 7.599 0.160 4.2 60.30 0.00 23.94 3 .30 3.87 8.60 2 2003 246 44 7.707 7.599 0.108 4.2 60.22 0.00 23.85 3.29 4.06 8.58 3 2003 363 16 7.698 7.599 0.100 3.5 54.92 0.00 25.64 3.57 6.55 9.32 4 2003 122 9 7.698 7.599 0.100 3.4 54.22 0.00 26.50 3 .66 6.10 9.53 5 2003 331 44 7.690 7.599 0.091 3.4 53.69 0.00 26.50 3.63 6.71 9.48 6 2003 305 16 7.685 7.599 0.086 3.8 57.20 0.00 24.93 3.45 5.44 8.99 7 2003 270 3 7.681 7.599 0.082 4.2 61.06 0.00 24.45 3 .35 2.41 8.73 8 2003 115 8 7.676 7.599 0.078 2.8 49.06 0.00 29.10 4 .02 7.35 10.47 9 2003 316 1 7.672 7.599 0.073 3.4 53.71 0.00 26.50 3 .64 6.68 9.48 10 2003 119 3 7.669 7.599 0.071 2.8 50.20 0.00 30.06 4 .13 4.86 10.76 11 2003 304 9 7.669 7.599 0.070 3.8 58.55 0.00 25.08 3 .50 3.73 9.14 12 2003 332 16 7.661 7.599 0.062 3.4 55.10 0.00 26.57 3.69 5.00 9.64 13 2003 226 195 7.659 7.599 0.061 4.2 59.49 0.00 23.73 3.26 5.04 8.49 14 2003 306 9 7.651 7.599 0.052 3.4 54.09 0.00 26.22 3 .63 6.58 9.48 15 2003 271 44 7.649 7.599 0.051 4.2 59.79 0.00 24.01 3.28 4.35 8.56 16 2003 309 218 7.649 7.599 0.050 3.4 53.91 0.00 26.91 3.67 5.95 9.56 17 2003 64 3 7.648 7.599 0.049 3.0 52.43 0.00 29.00 4. 00 4.12 10.44 18 2003 299 8 7.645 7.599 0.046 3.8 57.61 0.00 24.78 3 .45 5.16 9.00 19 2003 106 97 7.644 7.599 0.046 2.8 50.72 0.00 30.33 4.17 3.93 10.86 20

### Ranked Daily Visibility Change for Cohutta (Top 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2003 245 9 7.794 7.599 0.195 4.2 59.48 0.00 23.64 3 .25 5.16 8.48 1 2002 223 8 7.774 7.599 0.176 4.2 60.00 0.00 23.80 3 .28 4.37 8.55 2 2002 51 181 7.762 7.599 0.163 3.1 52.21 0.00 28.75 3.90 4.96 10.18 3 2001 327 97 7.759 7.599 0.160 3.4 54.22 0.00 27.03 3.69 5.45 9.61 4 2003 244 3 7.759 7.599 0.160 4.2 60.30 0.00 23.94 3 .30 3.87 8.60 5 2002 99 97 7.718 7.599 0.119 2.8 50.86 0.00 30.19 4 .16 3.93 10.86 6 2003 246 44 7.707 7.599 0.108 4.2 60.22 0.00 23.85 3.29 4.06 8.58 7 2001 123 97 7.703 7.599 0.105 3.4 55.20 0.00 27.07 3.73 4.28 9.72 8 2001 287 16 7.700 7.599 0.102 3.8 57.91 0.00 25.50 3.50 3.95 9.14 9 2003 363 16 7.698 7.599 0.100 3.5 54.92 0.00 25.64 3.57 6.55 9.32 10 2003 122 9 7.698 7.599 0.100 3.4 54.22 0.00 26.50 3 .66 6.10 9.53 11 2001 129 9 7.697 7.599 0.099 3.4 54.52 0.00 26.70 3 .68 5.51 9.59 12 2001 36 97 7.691 7.599 0.092 3.1 52.06 0.00 28.10 3 .86 5.92 10.07 13 2003 331 44 7.690 7.599 0.091 3.4 53.69 0.00 26.50 3.63 6.71 9.48 14 2002 276 25 7.688 7.599 0.089 3.8 57.45 0.00 25.11 3.46 4.94 9.04 15 2001 30 97 7.687 7.599 0.088 3.3 54.71 0.00 27.69 3 .81 3.86 9.93 16 2003 305 16 7.685 7.599 0.086 3.8 57.20 0.00 24.93 3.45 5.44 8.99 17 2003 270 3 7.681 7.599 0.082 4.2 61.06 0.00 24.45 3 .35 2.41 8.73 18 2002 41 8 7.679 7.599 0.080 3.1 52.01 0.00 27.71 3. 84 6.45 10.00 19 2001 229 9 7.677 7.599 0.078 4.2 59.39 0.00 23.62 3 .25 5.27 8.47 20 2003 115 8 7.676 7.599 0.078 2.8 49.06 0.00 29.10 4 .02 7.35 10.47 21 2001 328 16 7.675 7.599 0.077 3.4 55.23 0.00 26.61 3.70 4.80 9.66 22 2002 235 113 7.673 7.599 0.075 4.2 59.76 0.00 23.85 3.27 4.59 8.54 23 2001 340 45 7.673 7.599 0.074 3.5 54.45 0.00 26.49 3.60 6.06 9.39 24 2001 286 3 7.672 7.599 0.073 3.8 58.22 0.00 25.88 3 .54 3.14 9.22 25

### Ranked Daily Visibility Change for Great Smoky Moun tains (Top 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 40 361 7.777 7.599 0.178 3.0 51.93 0.00 29.04 3.98 4.65 10.39 1 2001 333 435 7.730 7.599 0.131 3.3 54.00 0.00 27.31 3.76 5.13 9.80 2 2001 327 514 7.686 7.599 0.087 3.3 55.12 0.00 27.39 3.81 3.75 9.93 3 2001 329 408 7.680 7.599 0.081 3.3 54.00 0.00 26.74 3.73 5.83 9.72 4 2001 179 366 7.672 7.599 0.073 3.9 58.96 0.00 25.13 3.47 3.41 9.04 5 2001 51 341 7.668 7.599 0.070 3.0 53.11 0.00 29.47 4.06 2.77 10.59 6 2001 334 399 7.664 7.599 0.065 3.3 54.46 0.00 27.42 3.78 4.48 9.87 7 2001 181 937 7.657 7.599 0.058 3.9 58.66 0.00 24.49 3.42 4.51 8.92 8 2001 347 999 7.653 7.599 0.055 3.4 54.08 0.00 26.63 3.66 6.10 9.54 9 2001 220 371 7.653 7.599 0.054 4.0 58.26 0.00 24.20 3.34 5.50 8.71 10 2001 30 349 7.648 7.599 0.050 3.3 54.16 0.00 27.47 3.77 4.76 9.84 11 2001 182 710 7.648 7.599 0.049 3.9 58.17 0.00 24.75 3.42 4.75 8.91 12 2001 114 371 7.648 7.599 0.049 2.7 48.83 0.00 30.06 4.15 6.15 10.81 13 2001 41 434 7.647 7.599 0.049 3.0 52.14 0.00 28.81 3.98 4.69 10.38 14 2001 36 474 7.644 7.599 0.045 3.0 52.69 0.00 28.99 4.02 3.83 10.47 15 2001 123 429 7.641 7.599 0.042 3.2 54.38 0.00 28.43 3.91 3.09 10.19 16 2001 199 322 7.636 7.599 0.037 3.8 58.65 0.00 25.83 3.55 2.72 9.25 17 2001 357 436 7.635 7.599 0.036 3.4 54.76 0.00 26.48 3.68 5.50 9.59 18 2001 198 324 7.635 7.599 0.036 3.8 58.23 0.00 25.72 3.53 3.32 9.20 19 2001 349 392 7.632 7.599 0.034 3.4 54.15 0.00 26.69 3.66 5.95 9.55 20

2002 320 357 7.775 7.599 0.177 3.3 54.27 0.00 27.33 3.77 4.80 9.83 1 2002 89 513 7.675 7.599 0.076 2.9 51.08 0.00 29.82 4.07 4.42 10.61 2 2002 51 609 7.669 7.599 0.071 3.0 52.89 0.00 28.40 3.99 4.32 10.41 3 2002 223 606 7.667 7.599 0.068 4.0 59.95 0.00 25.04 3.44 2.59 8.98 4 2002 227 323 7.663 7.599 0.064 4.0 59.53 0.00 24.88 3.42 3.25 8.92 5 2002 93 364 7.655 7.599 0.056 2.7 50.58 0.00 31.32 4.30 2.58 11.23 6 2002 293 419 7.648 7.599 0.049 3.8 57.48 0.00 25.14 3.47 4.87 9.04 7 2003 1 514 7.645 7.599 0.047 3.4 55.97 0.00 26.97 3 .75 3.51 9.79 8 2002 229 323 7.645 7.599 0.046 4.0 59.79 0.00 24.98 3.44 2.83 8.96 9 2002 226 429 7.643 7.599 0.044 4.0 59.61 0.00 24.68 3.41 3.41 8.90 10 2002 137 513 7.643 7.599 0.044 3.2 54.02 0.00 28.67 3.91 3.22 10.18 11 2002 32 605 7.642 7.599 0.043 3.3 53.40 0.00 26.98 3.71 6.23 9.69 12 2002 354 705 7.639 7.599 0.040 3.4 54.61 0.00 26.11 3.65 6.11 9.52 13 2002 118 605 7.637 7.599 0.039 2.7 48.87 0.00 30.72 4.19 5.32 10.91 14 2002 75 556 7.638 7.599 0.039 2.9 50.56 0.00 28.67 3.98 6.41 10.38 15 2002 313 364 7.637 7.599 0.038 3.3 55.61 0.00 28.22 3.88 2.18 10.11 16 2002 278 338 7.634 7.599 0.036 3.8 58.63 0.00 25.60 3.53 3.01 9.22 17 2002 222 365 7.632 7.599 0.034 4.0 60.02 0.00 25.11 3.45 2.42 9.00 18 2002 74 419 7.633 7.599 0.034 2.9 50.49 0.00 29.44 4.02 5.58 10.48 19 2002 224 429 7.631 7.599 0.032 4.0 60.19 0.00 25.03 3.45 2.34 9.00 20

2003 351 330 7.756 7.599 0.157 3.4 55.85 0.00 27.15 3.76 3.44 9.80 1 2003 358 605 7.719 7.599 0.121 3.4 54.50 0.00 26.56 3.67 5.70 9.57 2 2003 328 652 7.691 7.599 0.092 3.3 53.35 0.00 27.22 3.73 5.99 9.72 3 2003 108 605 7.691 7.599 0.092 2.7 48.97 0.00 30.22 4.16 5.79 10.86 4 2003 291 513 7.671 7.599 0.073 3.8 56.87 0.00 25.45 3.46 5.18 9.03 5 2003 247 339 7.671 7.599 0.073 4.2 61.32 0.00 24.29 3.35 2.30 8.73 6 2003 364 514 7.664 7.599 0.066 3.4 55.49 0.00 26.99 3.73 4.05 9.74 7 2003 106 353 7.665 7.599 0.066 2.7 49.59 0.00 30.70 4.22 4.48 11.01 8 2003 107 351 7.661 7.599 0.063 2.7 49.10 0.00 30.23 4.17 5.62 10.87 9 2003 363 434 7.659 7.599 0.061 3.4 54.38 0.00 26.21 3.65 6.25 9.51 10 2003 122 431 7.660 7.599 0.061 3.2 53.68 0.00 27.85 3.84 4.60 10.03 11 2003 258 474 7.653 7.599 0.054 4.2 60.29 0.00 23.82 3.29 4.02 8.58 12 2003 331 513 7.651 7.599 0.052 3.3 53.81 0.00 27.37 3.75 5.28 9.79 13 2003 246 435 7.647 7.599 0.048 4.2 59.52 0.00 24.17 3.28 4.47 8.56 14 2003 242 513 7.647 7.599 0.048 4.0 58.83 0.00 24.78 3.39 4.15 8.84 15 2003 226 474 7.644 7.599 0.046 4.0 58.95 0.00 24.12 3.36 4.82 8.76 16 2003 304 435 7.641 7.599 0.042 3.8 58.40 0.00 25.47 3.52 3.43 9.18 17 2003 344 371 7.640 7.599 0.041 3.4 55.08 0.00 26.92 3.71 4.60 9.69 18 2003 271 435 7.639 7.599 0.040 4.2 60.05 0.00 24.06 3.29 4.01 8.59 19 2003 288 605 7.637 7.599 0.038 3.8 56.90 0.00 24.99 3.44 5.70 8.97 20

### Ranked Daily Visibility Change for Great Smoky Moun tains (Top 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 40 361 7.777 7.599 0.178 3.0 51.93 0.00 29.04 3.98 4.65 10.39 1 2002 320 357 7.775 7.599 0.177 3.3 54.27 0.00 27.33 3.77 4.80 9.83 2 2003 351 330 7.756 7.599 0.157 3.4 55.85 0.00 27.15 3.76 3.44 9.80 3 2001 333 435 7.730 7.599 0.131 3.3 54.00 0.00 27.31 3.76 5.13 9.80 4 2003 358 605 7.719 7.599 0.121 3.4 54.50 0.00 26.56 3.67 5.70 9.57 5 2003 328 652 7.691 7.599 0.092 3.3 53.35 0.00 27.22 3.73 5.99 9.72 6 2003 108 605 7.691 7.599 0.092 2.7 48.97 0.00 30.22 4.16 5.79 10.86 7 2001 327 514 7.686 7.599 0.087 3.3 55.12 0.00 27.39 3.81 3.75 9.93 8 2001 329 408 7.680 7.599 0.081 3.3 54.00 0.00 26.74 3.73 5.83 9.72 9 2002 89 513 7.675 7.599 0.076 2.9 51.08 0.00 29.82 4.07 4.42 10.61 10 2001 179 366 7.672 7.599 0.073 3.9 58.96 0.00 25.13 3.47 3.41 9.04 11 2003 291 513 7.671 7.599 0.073 3.8 56.87 0.00 25.45 3.46 5.18 9.03 12 2003 247 339 7.671 7.599 0.073 4.2 61.32 0.00 24.29 3.35 2.30 8.73 13 2002 51 609 7.669 7.599 0.071 3.0 52.89 0.00 28.40 3.99 4.32 10.41 14 2001 51 341 7.668 7.599 0.070 3.0 53.11 0.00 29.47 4.06 2.77 10.59 15 2002 223 606 7.667 7.599 0.068 4.0 59.95 0.00 25.04 3.44 2.59 8.98 16 2003 364 514 7.664 7.599 0.066 3.4 55.49 0.00 26.99 3.73 4.05 9.74 17 2003 106 353 7.665 7.599 0.066 2.7 49.59 0.00 30.70 4.22 4.48 11.01 18 2001 334 399 7.664 7.599 0.065 3.3 54.46 0.00 27.42 3.78 4.48 9.87 19 2002 227 323 7.663 7.599 0.064 4.0 59.53 0.00 24.88 3.42 3.25 8.92 20 2003 107 351 7.661 7.599 0.063 2.7 49.10 0.00 30.23 4.17 5.62 10.87 21 2003 363 434 7.659 7.599 0.061 3.4 54.38 0.00 26.21 3.65 6.25 9.51 22 2003 122 431 7.660 7.599 0.061 3.2 53.68 0.00 27.85 3.84 4.60 10.03 23 2001 181 937 7.657 7.599 0.058 3.9 58.66 0.00 24.49 3.42 4.51 8.92 24 2002 93 364 7.655 7.599 0.056 2.7 50.58 0.00 31.32 4.30 2.58 11.23 25

### Ranked Daily Visibility Change for Joyce Kilmer (To p 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 333 246 7.746 7.608 0.138 3.3 53.72 0.00 27.23 3.74 5.55 9.76 1 2001 327 270 7.718 7.608 0.110 3.3 54.73 0.00 27.28 3.79 4.32 9.88 2 2001 40 225 7.710 7.608 0.102 3.1 52.96 0.00 28.94 3.95 3.87 10.29 3 2001 51 225 7.691 7.608 0.083 3.1 53.69 0.00 28.88 3.98 3.08 10.37 4 2001 179 221 7.684 7.608 0.076 3.8 58.18 0.00 25.43 3.51 3.72 9.15 5 2001 334 225 7.673 7.608 0.065 3.3 54.17 0.00 27.44 3.77 4.77 9.84 6 2001 220 248 7.672 7.608 0.064 4.2 59.37 0.00 23.53 3.24 5.39 8.46 7 2001 114 222 7.661 7.608 0.053 2.7 48.59 0.00 30.06 4.13 6.44 10.78 8 2001 41 221 7.660 7.608 0.052 3.1 52.57 0.00 28.28 3.89 5.11 10.15 9 2001 36 286 7.659 7.608 0.051 3.1 53.35 0.00 28.37 3.93 4.09 10.26 10 2001 123 270 7.655 7.608 0.047 3.3 55.04 0.00 27.92 3.84 3.20 10.00 11 2001 30 225 7.655 7.608 0.047 3.3 54.32 0.00 27.42 3.78 4.63 9.85 12 2001 329 225 7.654 7.608 0.046 3.3 52.68 0.00 27.88 3.74 5.96 9.74 13 2001 198 225 7.652 7.608 0.044 4.0 59.49 0.00 24.92 3.42 3.25 8.92 14 2001 357 221 7.650 7.608 0.042 3.5 55.16 0.00 26.02 3.60 5.82 9.40 15 2001 229 239 7.649 7.608 0.041 4.2 60.91 0.00 24.11 3.33 2.98 8.67 16 2001 199 225 7.649 7.608 0.040 4.0 59.76 0.00 25.05 3.44 2.78 8.96 17 2001 340 239 7.645 7.608 0.036 3.5 55.72 0.00 26.19 3.63 4.98 9.48 18 2001 181 258 7.642 7.608 0.034 3.8 57.64 0.00 26.06 3.53 3.59 9.19 19 2001 27 270 7.642 7.608 0.034 3.3 55.70 0.00 27.98 3.87 2.36 10.08 20

2002 51 310 7.696 7.608 0.088 3.1 53.57 0.00 27.78 3.91 4.54 10.20 1 2002 223 317 7.675 7.608 0.067 4.2 61.13 0.00 24.32 3.34 2.49 8.72 2 2002 227 258 7.669 7.608 0.061 4.2 60.69 0.00 24.06 3.32 3.28 8.65 3 2003 1 286 7.661 7.608 0.053 3.5 56.50 0.00 26.45 3 .68 3.77 9.60 4 2002 293 222 7.657 7.608 0.049 3.8 57.15 0.00 25.23 3.46 5.13 9.02 5 2002 226 278 7.656 7.608 0.048 4.2 60.83 0.00 23.87 3.31 3.36 8.63 6 2002 222 221 7.654 7.608 0.046 4.2 61.04 0.00 24.29 3.34 2.62 8.71 7 2002 320 225 7.653 7.608 0.045 3.3 53.70 0.00 27.87 3.78 4.80 9.85 8 2002 313 225 7.643 7.608 0.035 3.3 55.78 0.00 28.50 3.90 1.65 10.16 9 2002 224 270 7.643 7.608 0.035 4.2 61.34 0.00 24.30 3.35 2.27 8.74 10 2002 263 278 7.642 7.608 0.034 4.2 60.02 0.00 24.02 3.29 4.08 8.58 11 2002 235 239 7.642 7.608 0.034 4.2 60.72 0.00 24.01 3.31 3.31 8.64 12 2002 229 225 7.642 7.608 0.034 4.2 60.93 0.00 24.25 3.33 2.79 8.69 13 2002 93 225 7.640 7.608 0.032 2.7 50.42 0.00 31.55 4.31 2.48 11.24 14 2002 105 264 7.637 7.608 0.029 2.7 48.82 0.00 29.82 4.13 6.46 10.78 15 2002 115 239 7.636 7.608 0.028 2.7 50.05 0.00 30.64 4.24 4.01 11.06 16 2002 47 240 7.636 7.608 0.028 3.1 52.18 0.00 28.14 3.87 5.72 10.09 17 2002 319 225 7.635 7.608 0.027 3.3 56.40 0.00 28.22 3.91 1.28 10.19 18 2002 225 221 7.635 7.608 0.027 4.2 61.32 0.00 24.28 3.35 2.31 8.73 19 2002 148 270 7.635 7.608 0.027 3.3 55.43 0.00 27.57 3.83 3.16 9.99 20

2003 351 225 7.728 7.608 0.120 3.5 55.95 0.00 27.16 3.70 3.55 9.64 1 2003 364 270 7.691 7.608 0.083 3.5 56.00 0.00 26.44 3.66 4.36 9.54 2 2003 363 278 7.691 7.608 0.083 3.5 54.91 0.00 25.89 3.59 6.26 9.35 3 2003 122 278 7.681 7.608 0.073 3.3 54.28 0.00 27.22 3.76 4.91 9.82 4 2003 258 278 7.675 7.608 0.067 4.2 60.25 0.00 23.92 3.29 3.94 8.59 5 2003 106 225 7.675 7.608 0.067 2.7 49.49 0.00 30.71 4.22 4.58 10.99 6 2003 247 225 7.674 7.608 0.066 4.2 61.34 0.00 24.37 3.35 2.19 8.75 7 2003 246 241 7.673 7.608 0.065 4.2 59.59 0.00 24.09 3.28 4.47 8.56 8 2003 107 225 7.669 7.608 0.061 2.7 48.79 0.00 30.15 4.15 6.09 10.82 9 2003 328 253 7.668 7.608 0.060 3.3 54.00 0.00 27.06 3.74 5.42 9.76 10 2003 331 221 7.667 7.608 0.059 3.3 53.43 0.00 27.20 3.73 5.92 9.72 11 2003 226 278 7.663 7.608 0.055 4.2 59.85 0.00 23.46 3.25 4.95 8.49 12 2003 271 239 7.654 7.608 0.046 4.2 59.93 0.00 23.95 3.28 4.27 8.56 13 2003 344 222 7.653 7.608 0.045 3.5 55.67 0.00 26.43 3.65 4.74 9.51 14 2003 304 239 7.652 7.608 0.044 3.8 58.58 0.00 25.35 3.52 3.38 9.18 15 2003 270 239 7.648 7.608 0.040 4.2 60.71 0.00 24.35 3.33 2.92 8.69 16 2003 64 239 7.648 7.608 0.040 2.9 51.46 0.00 29.28 4.06 4.62 10.58 17 2003 316 221 7.647 7.608 0.039 3.3 53.70 0.00 27.02 3.73 5.82 9.73 18 2003 178 225 7.644 7.608 0.036 3.8 58.33 0.00 25.54 3.52 3.42 9.18 19 2003 329 239 7.643 7.608 0.035 3.3 54.46 0.00 27.38 3.78 4.53 9.86 20

### Ranked Daily Visibility Change for Joyce Kilmer (To p 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 333 246 7.746 7.608 0.138 3.3 53.72 0.00 27.23 3.74 5.55 9.76 1 2003 351 225 7.728 7.608 0.120 3.5 55.95 0.00 27.16 3.70 3.55 9.64 2 2001 327 270 7.718 7.608 0.110 3.3 54.73 0.00 27.28 3.79 4.32 9.88 3 2001 40 225 7.710 7.608 0.102 3.1 52.96 0.00 28.94 3.95 3.87 10.29 4 2002 51 310 7.696 7.608 0.088 3.1 53.57 0.00 27.78 3.91 4.54 10.20 5 2001 51 225 7.691 7.608 0.083 3.1 53.69 0.00 28.88 3.98 3.08 10.37 6 2003 364 270 7.691 7.608 0.083 3.5 56.00 0.00 26.44 3.66 4.36 9.54 7 2003 363 278 7.691 7.608 0.083 3.5 54.91 0.00 25.89 3.59 6.26 9.35 8 2001 179 221 7.684 7.608 0.076 3.8 58.18 0.00 25.43 3.51 3.72 9.15 9 2003 122 278 7.681 7.608 0.073 3.3 54.28 0.00 27.22 3.76 4.91 9.82 10 2002 223 317 7.675 7.608 0.067 4.2 61.13 0.00 24.32 3.34 2.49 8.72 11 2003 258 278 7.675 7.608 0.067 4.2 60.25 0.00 23.92 3.29 3.94 8.59 12 2003 106 225 7.675 7.608 0.067 2.7 49.49 0.00 30.71 4.22 4.58 10.99 13 2003 247 225 7.674 7.608 0.066 4.2 61.34 0.00 24.37 3.35 2.19 8.75 14 2001 334 225 7.673 7.608 0.065 3.3 54.17 0.00 27.44 3.77 4.77 9.84 15 2003 246 241 7.673 7.608 0.065 4.2 59.59 0.00 24.09 3.28 4.47 8.56 16 2001 220 248 7.672 7.608 0.064 4.2 59.37 0.00 23.53 3.24 5.39 8.46 17 2002 227 258 7.669 7.608 0.061 4.2 60.69 0.00 24.06 3.32 3.28 8.65 18 2003 107 225 7.669 7.608 0.061 2.7 48.79 0.00 30.15 4.15 6.09 10.82 19 2003 328 253 7.668 7.608 0.060 3.3 54.00 0.00 27.06 3.74 5.42 9.76 20 2003 331 221 7.667 7.608 0.059 3.3 53.43 0.00 27.20 3.73 5.92 9.72 21 2003 226 278 7.663 7.608 0.055 4.2 59.85 0.00 23.46 3.25 4.95 8.49 22 2001 114 222 7.661 7.608 0.053 2.7 48.59 0.00 30.06 4.13 6.44 10.78 23 2003 1 286 7.661 7.608 0.053 3.5 56.50 0.00 26.45 3 .68 3.77 9.60 24 2001 41 221 7.660 7.608 0.052 3.1 52.57 0.00 28.28 3.89 5.11 10.15 25

### Ranked Daily Visibility Change for Shining Rock (To p 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 182 1064 7.678 7.608 0.07 3.9 58.17 0 24.85 3. 42 4.64 8.93 1 2001 297 1068 7.672 7.608 0.064 3.8 57.53 0 25.1 3. 47 4.86 9.04 2 2001 333 1061 7.664 7.608 0.056 3.3 53.55 0 26.94 3 .72 6.09 9.7 3 2001 41 1061 7.664 7.608 0.056 3 52.33 0 28.62 3.98 4.7 10.38 4 2001 347 1060 7.661 7.608 0.053 3.4 53.48 0 27.21 3 .67 6.08 9.56 5 2001 51 1062 7.66 7.608 0.052 3 50.89 0 28.3 3.89 6 .76 10.16 6 2001 180 1068 7.659 7.608 0.051 3.9 58.67 0 24.97 3 .45 3.92 8.99 7 2001 40 1118 7.657 7.608 0.049 3 52.58 0 28.36 3.97 4.72 10.37 8 2001 71 1062 7.651 7.608 0.043 2.9 50.72 0 29.51 4. 03 5.21 10.52 9 2001 264 1062 7.648 7.608 0.04 4.4 60.76 0 22.6 3.1 5 5.28 8.21 10 2001 332 1062 7.647 7.608 0.039 3.3 53.22 0 26.68 3 .69 6.78 9.62 11 2001 114 1087 7.647 7.608 0.039 2.7 49.36 0 30.31 4 .19 5.22 10.92 12 2001 141 1062 7.645 7.608 0.037 3.4 55.11 0 26.74 3 .7 4.77 9.66 13 2001 199 1063 7.643 7.608 0.035 4.1 60.62 0 24.69 3 .4 2.43 8.86 14 2001 181 1154 7.64 7.608 0.032 3.9 58.71 0 24.81 3. 44 4.06 8.97 15 2001 123 1062 7.638 7.608 0.03 3.4 56.12 0 27.25 3. 77 3 9.84 16 2001 113 1062 7.637 7.608 0.029 2.7 49.71 0 31.64 4 .28 3.21 11.16 17 2001 340 1068 7.634 7.608 0.026 3.4 54.05 0 25.83 3 .61 7.08 9.42 18 2001 263 1062 7.634 7.608 0.026 4.4 62.08 0 23.41 3 .23 2.84 8.43 19 2001 198 1103 7.632 7.608 0.024 4.1 60.13 0 24.67 3 .38 3 8.81 20

2002 15 1062 7.715 7.608 0.107 3.3 53.34 0 26.96 3. 71 6.31 9.68 1 2002 89 1117 7.696 7.608 0.088 2.9 51.63 0 28.98 4. 05 4.78 10.56 2 2002 228 1087 7.684 7.608 0.076 4.5 62.28 0 23.04 3 .17 3.23 8.28 3 2002 315 1062 7.68 7.608 0.072 3.3 54.03 0 27.21 3. 75 5.21 9.79 4 2002 57 1062 7.676 7.608 0.068 3 51.76 0 28.97 3.97 4.94 10.36 5 2002 314 1062 7.676 7.608 0.067 3.3 53.08 0 27.15 3 .71 6.38 9.68 6 2002 86 1087 7.674 7.608 0.066 2.9 49.92 0 29.05 3. 97 6.69 10.36 7 2002 137 1118 7.664 7.608 0.056 3.4 56.33 0 27.07 3 .77 2.99 9.84 8 2002 293 1087 7.663 7.608 0.054 3.8 58.5 0 25.58 3. 53 3.18 9.2 9 2002 227 1063 7.66 7.608 0.052 4.5 62.19 0 23.1 3.1 8 3.25 8.28 10 2002 32 1087 7.658 7.608 0.049 3.3 52.87 0 26.99 3. 69 6.82 9.63 11 2002 313 1068 7.652 7.608 0.044 3.3 54.68 0 27.54 3 .8 4.08 9.91 12 2002 93 1118 7.651 7.608 0.043 2.7 49.93 0 30.75 4. 24 4.02 11.06 13 2002 133 1062 7.647 7.608 0.039 3.4 54.78 0 27.55 3 .74 4.19 9.74 14 2002 67 1087 7.646 7.608 0.038 2.9 52.67 0 30.19 4. 16 2.11 10.86 15 2002 118 1118 7.645 7.608 0.037 2.7 49.66 0 29.92 4 .18 5.33 10.9 16 2002 226 1063 7.644 7.608 0.036 4.5 62.57 0 23.05 3 .18 2.89 8.3 17 2002 229 1063 7.643 7.608 0.035 4.5 62.12 0 22.98 3 .17 3.47 8.26 18 2002 22 1117 7.631 7.608 0.023 3.3 53.83 0 26.95 3. 73 5.76 9.73 19 2002 230 1062 7.63 7.608 0.022 4.5 63.32 0 23.35 3. 22 1.7 8.41 20

2003 291 1064 7.711 7.608 0.103 3.8 56.72 0 25.53 3 .46 5.26 9.03 1 2003 328 1066 7.682 7.608 0.074 3.3 53.59 0 26.97 3 .72 6.01 9.71 2 2003 358 1117 7.68 7.608 0.072 3.4 54.15 0 26.39 3. 65 6.3 9.51 3 2003 242 1065 7.673 7.608 0.065 4.5 62.1 0 22.93 3. 16 3.56 8.25 4 2003 108 1117 7.672 7.608 0.064 2.7 48.95 0 29.99 4 .15 6.1 10.82 5 2003 106 1068 7.67 7.608 0.062 2.7 48.95 0 30.45 4. 17 5.53 10.89 6 2003 247 1117 7.665 7.608 0.057 4.4 62.22 0 23.44 3 .24 2.65 8.45 7 2003 331 1118 7.664 7.608 0.056 3.3 53.98 0 27.22 3 .75 5.26 9.78 8 2003 321 1062 7.654 7.608 0.046 3.3 53.13 0 27 3.71 6.5 9.66 9 2003 288 1068 7.653 7.608 0.044 3.8 56.64 0 24.95 3 .43 6.04 8.94 10 2003 351 1063 7.649 7.608 0.041 3.4 54.91 0 26.53 3 .68 5.26 9.61 11 2003 344 1087 7.646 7.608 0.038 3.4 55.18 0 27.58 3 .76 3.69 9.79 12 2003 142 1058 7.646 7.608 0.038 3.4 54.43 0 26.06 3 .64 6.38 9.49 13 2003 178 1063 7.645 7.608 0.036 3.9 58.75 0 25.19 3 .46 3.56 9.03 14 2003 216 1087 7.642 7.608 0.034 4.5 60.62 0 22.72 3 .11 5.44 8.1 15 2003 111 1166 7.641 7.608 0.033 2.7 49.11 0 29.82 4 .15 6.1 10.82 16 2003 271 1066 7.64 7.608 0.032 4.4 61.24 0 23.16 3. 19 4.08 8.33 17 2003 107 1117 7.64 7.608 0.032 2.7 49.47 0 30.54 4. 21 4.81 10.97 18 2003 225 1087 7.637 7.608 0.029 4.5 62.5 0 22.95 3. 18 3.08 8.29 19 2003 46 1117 7.632 7.608 0.024 3 51.98 0 28.37 3.95 5.4 10.3 20

### Ranked Daily Visibility Change for Shining Rock (To p 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2002 15 1062 7.715 7.608 0.107 3.3 53.34 0.00 26.96 3.71 6.31 9.68 1 2003 291 1064 7.711 7.608 0.103 3.8 56.72 0.00 25.5 3 3.46 5.26 9.03 2 2002 89 1117 7.696 7.608 0.088 2.9 51.63 0.00 28.98 4.05 4.78 10.56 3 2002 228 1087 7.684 7.608 0.076 4.5 62.28 0.00 23.0 4 3.17 3.23 8.28 4 2003 328 1066 7.682 7.608 0.074 3.3 53.59 0.00 26.9 7 3.72 6.01 9.71 5 2002 315 1062 7.680 7.608 0.072 3.3 54.03 0.00 27.2 1 3.75 5.21 9.79 6 2003 358 1117 7.680 7.608 0.072 3.4 54.15 0.00 26.3 9 3.65 6.30 9.51 7 2001 182 1064 7.678 7.608 0.070 3.9 58.17 0.00 24.8 5 3.42 4.64 8.93 8 2002 57 1062 7.676 7.608 0.068 3.0 51.76 0.00 28.97 3.97 4.94 10.36 9 2002 314 1062 7.676 7.608 0.067 3.3 53.08 0.00 27.1 5 3.71 6.38 9.68 10 2002 86 1087 7.674 7.608 0.066 2.9 49.92 0.00 29.05 3.97 6.69 10.36 11 2003 242 1065 7.673 7.608 0.065 4.5 62.10 0.00 22.9 3 3.16 3.56 8.25 12 2001 297 1068 7.672 7.608 0.064 3.8 57.53 0.00 25.1 0 3.47 4.86 9.04 13 2003 108 1117 7.672 7.608 0.064 2.7 48.95 0.00 29.9 9 4.15 6.10 10.82 14 2003 106 1068 7.670 7.608 0.062 2.7 48.95 0.00 30.4 5 4.17 5.53 10.89 15 2003 247 1117 7.665 7.608 0.057 4.4 62.22 0.00 23.4 4 3.24 2.65 8.45 16 2001 333 1061 7.664 7.608 0.056 3.3 53.55 0.00 26.9 4 3.72 6.09 9.70 17 2001 41 1061 7.664 7.608 0.056 3.0 52.33 0.00 28.62 3.98 4.70 10.38 18 2002 137 1118 7.664 7.608 0.056 3.4 56.33 0.00 27.0 7 3.77 2.99 9.84 19 2003 331 1118 7.664 7.608 0.056 3.3 53.98 0.00 27.2 2 3.75 5.26 9.78 20 2002 293 1087 7.663 7.608 0.054 3.8 58.50 0.00 25.5 8 3.53 3.18 9.20 21 2001 347 1060 7.661 7.608 0.053 3.4 53.48 0.00 27.2 1 3.67 6.08 9.56 22 2001 51 1062 7.660 7.608 0.052 3.0 50.89 0.00 28.30 3.89 6.76 10.16 23 2002 227 1063 7.660 7.608 0.052 4.5 62.19 0.00 23.1 0 3.18 3.25 8.28 24 2001 180 1068 7.659 7.608 0.051 3.9 58.67 0.00 24.9 7 3.45 3.92 8.99 25

### Ranked Daily Visibility Change for Okefenokee (Top 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 269 1218 7.776 7.608 0.168 4.0 60.06 0.00 24.9 1 3.44 2.62 8.97 1 2001 22 1561 7.741 7.608 0.133 3.5 56.93 0.00 26.96 3.73 2.66 9.72 2 2001 270 1491 7.707 7.608 0.099 4.0 60.43 0.00 25.1 3 3.46 1.94 9.03 3 2001 67 1667 7.707 7.608 0.099 3.1 52.56 0.00 28.21 3.89 5.19 10.14 4 2001 355 1581 7.683 7.608 0.075 3.6 57.36 0.00 26.4 8 3.65 2.98 9.53 5 2001 35 1667 7.683 7.608 0.075 3.2 53.97 0.00 28.18 3.87 3.87 10.10 6 2001 301 1539 7.682 7.608 0.074 3.8 57.88 0.00 25.5 0 3.50 3.99 9.13 7 2001 77 1200 7.676 7.608 0.068 3.1 52.55 0.00 28.31 3.89 5.09 10.15 8 2001 353 1631 7.674 7.608 0.066 3.6 58.14 0.00 26.8 4 3.70 1.66 9.66 9 2001 74 1644 7.664 7.608 0.056 3.1 52.27 0.00 28.01 3.87 5.77 10.08 10 2001 234 1667 7.660 7.608 0.052 4.1 59.91 0.00 24.4 7 3.36 3.50 8.76 11 2001 17 1661 7.659 7.608 0.050 3.5 55.58 0.00 26.64 3.65 4.59 9.53 12 2001 300 1218 7.656 7.608 0.048 3.8 59.07 0.00 25.6 1 3.55 2.50 9.26 13 2001 29 1667 7.657 7.608 0.048 3.5 55.61 0.00 26.53 3.65 4.69 9.52 14 2001 299 1466 7.655 7.608 0.047 3.8 60.00 0.00 26.1 0 3.61 0.86 9.42 15 2001 365 1466 7.654 7.608 0.046 3.6 56.93 0.00 25.9 4 3.61 4.11 9.41 16 2001 326 1644 7.654 7.608 0.045 3.5 56.25 0.00 27.5 5 3.73 2.74 9.73 17 2001 33 1645 7.653 7.608 0.045 3.2 53.33 0.00 27.76 3.82 5.10 9.97 18 2001 5 1631 7.652 7.608 0.044 3.5 57.43 0.00 26.93 3.74 2.14 9.76 19 2001 26 1667 7.651 7.608 0.043 3.5 56.22 0.00 26.73 3.68 3.76 9.61 20

2002 336 1600 7.729 7.608 0.121 3.6 57.37 0.00 26.5 0 3.65 2.94 9.53 1 2002 361 1466 7.725 7.608 0.117 3.6 57.79 0.00 26.7 3 3.68 2.20 9.60 2 2002 291 1631 7.712 7.608 0.104 3.8 58.97 0.00 25.8 4 3.56 2.34 9.29 3 2002 154 1667 7.710 7.608 0.102 3.7 57.40 0.00 25.8 7 3.56 3.87 9.29 4 2002 43 1491 7.700 7.608 0.092 3.2 55.13 0.00 28.65 3.95 1.96 10.30 5 2002 14 1600 7.694 7.608 0.086 3.5 55.37 0.00 26.34 3.63 5.19 9.47 6 2002 350 1667 7.689 7.608 0.081 3.6 56.10 0.00 25.9 0 3.57 5.10 9.32 7 2002 2 1421 7.687 7.608 0.079 3.5 55.43 0.00 26.57 3.65 4.84 9.50 8 2002 60 1617 7.685 7.608 0.077 3.2 53.74 0.00 27.94 3.85 4.42 10.04 9 2002 219 1631 7.673 7.608 0.065 4.1 60.17 0.00 24.3 6 3.36 3.33 8.77 10 2002 323 1581 7.670 7.608 0.062 3.5 55.93 0.00 26.5 8 3.67 4.26 9.56 11 2002 363 1631 7.669 7.608 0.061 3.6 56.66 0.00 26.2 3 3.61 4.08 9.42 12 2002 338 1666 7.666 7.608 0.058 3.6 57.86 0.00 26.7 7 3.69 2.06 9.62 13 2002 199 1200 7.664 7.608 0.056 3.7 57.76 0.00 26.0 1 3.58 3.31 9.34 14 2002 95 1218 7.661 7.608 0.053 3.0 53.09 0.00 29.46 4.06 2.80 10.59 15 2002 45 1421 7.661 7.608 0.053 3.2 53.05 0.00 27.70 3.81 5.50 9.93 16 2002 36 1631 7.661 7.608 0.053 3.2 54.30 0.00 28.26 3.89 3.39 10.15 17 2002 332 1631 7.660 7.608 0.052 3.5 57.63 0.00 26.8 3 3.74 2.03 9.77 18 2002 82 1218 7.660 7.608 0.052 3.1 53.69 0.00 28.87 3.98 3.10 10.37 19 2002 201 1560 7.659 7.608 0.051 3.7 57.28 0.00 25.8 0 3.55 4.10 9.26 20

2003 360 1661 7.771 7.608 0.163 3.6 56.51 0.00 26.3 9 3.62 4.06 9.43 1 2003 12 1543 7.755 7.608 0.147 3.5 56.69 0.00 26.99 3.72 2.91 9.69 2 2003 40 1581 7.729 7.608 0.121 3.2 53.79 0.00 28.08 3.86 4.19 10.07 3 2003 336 1667 7.697 7.608 0.089 3.6 57.16 0.00 26.5 3 3.65 3.15 9.51 4 2003 5 1631 7.694 7.608 0.086 3.5 57.24 0.00 27.12 3.75 2.13 9.77 5 2003 15 1253 7.687 7.608 0.079 3.5 55.93 0.00 26.62 3.67 4.21 9.56 6 2003 355 1666 7.680 7.608 0.072 3.6 56.89 0.00 26.3 9 3.63 3.62 9.47 7 2003 343 1666 7.668 7.608 0.060 3.6 57.04 0.00 26.0 4 3.62 3.87 9.43 8 2003 153 1667 7.668 7.608 0.060 3.7 57.81 0.00 26.0 5 3.59 3.19 9.35 9 2003 341 1421 7.663 7.608 0.055 3.6 57.23 0.00 26.7 2 3.66 2.84 9.55 10 2003 63 1387 7.654 7.608 0.046 3.1 52.98 0.00 28.38 3.92 4.51 10.21 11 2003 135 1667 7.650 7.608 0.042 3.6 55.70 0.00 26.2 3 3.58 5.17 9.32 12 2003 6 1404 7.650 7.608 0.042 3.5 57.38 0.00 27.24 3.76 1.82 9.80 13 2003 318 1491 7.649 7.608 0.041 3.5 56.96 0.00 27.1 8 3.74 2.36 9.75 14 2003 296 1560 7.649 7.608 0.041 3.8 57.31 0.00 25.2 3 3.47 4.95 9.04 15 2003 103 1421 7.648 7.608 0.040 3.0 51.82 0.00 28.7 2 3.96 5.16 10.33 16 2003 91 1538 7.647 7.608 0.039 3.1 52.51 0.00 28.39 3.90 5.05 10.16 17 2003 41 1214 7.647 7.608 0.039 3.2 54.60 0.00 28.56 3.92 2.68 10.23 18 2003 347 1168 7.646 7.608 0.038 3.6 57.77 0.00 26.7 0 3.68 2.25 9.60 19 2003 154 1667 7.645 7.608 0.037 3.7 58.35 0.00 26.2 9 3.62 2.30 9.44 20

### Ranked Daily Visibility Change for Okefenokee (Top 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF Ranking 2001 269 1218 7.776 7.608 0.168 4.0 60.06 0.00 24.9 1 3.44 2.62 8.97 1 2003 360 1661 7.771 7.608 0.163 3.6 56.51 0.00 26.3 9 3.62 4.06 9.43 2 2003 12 1543 7.755 7.608 0.147 3.5 56.69 0.00 26.99 3.72 2.91 9.69 3 2001 22 1561 7.741 7.608 0.133 3.5 56.93 0.00 26.96 3.73 2.66 9.72 4 2002 336 1600 7.729 7.608 0.121 3.6 57.37 0.00 26.5 0 3.65 2.94 9.53 5 2003 40 1581 7.729 7.608 0.121 3.2 53.79 0.00 28.08 3.86 4.19 10.07 6 2002 361 1466 7.725 7.608 0.117 3.6 57.79 0.00 26.7 3 3.68 2.20 9.60 7 2002 291 1631 7.712 7.608 0.104 3.8 58.97 0.00 25.8 4 3.56 2.34 9.29 8 2002 154 1667 7.710 7.608 0.102 3.7 57.40 0.00 25.8 7 3.56 3.87 9.29 9 2001 270 1491 7.707 7.608 0.099 4.0 60.43 0.00 25.1 3 3.46 1.94 9.03 10 2001 67 1667 7.707 7.608 0.099 3.1 52.56 0.00 28.21 3.89 5.19 10.14 11 2002 43 1491 7.700 7.608 0.092 3.2 55.13 0.00 28.65 3.95 1.96 10.30 12 2003 336 1667 7.697 7.608 0.089 3.6 57.16 0.00 26.5 3 3.65 3.15 9.51 13 2002 14 1600 7.694 7.608 0.086 3.5 55.37 0.00 26.34 3.63 5.19 9.47 14 2003 5 1631 7.694 7.608 0.086 3.5 57.24 0.00 27.12 3.75 2.13 9.77 15 2002 350 1667 7.689 7.608 0.081 3.6 56.10 0.00 25.9 0 3.57 5.10 9.32 16 2002 2 1421 7.687 7.608 0.079 3.5 55.43 0.00 26.57 3.65 4.84 9.50 17 2003 15 1253 7.687 7.608 0.079 3.5 55.93 0.00 26.62 3.67 4.21 9.56 18 2002 60 1617 7.685 7.608 0.077 3.2 53.74 0.00 27.94 3.85 4.42 10.04 19 2001 355 1581 7.683 7.608 0.075 3.6 57.36 0.00 26.4 8 3.65 2.98 9.53 20 2001 35 1667 7.683 7.608 0.075 3.2 53.97 0.00 28.18 3.87 3.87 10.10 21 2001 301 1539 7.682 7.608 0.074 3.8 57.88 0.00 25.5 0 3.50 3.99 9.13 22 2003 355 1666 7.680 7.608 0.072 3.6 56.89 0.00 26.3 9 3.63 3.62 9.47 23 2001 77 1200 7.676 7.608 0.068 3.1 52.55 0.00 28.31 3.89 5.09 10.15 24 2001 353 1631 7.674 7.608 0.066 3.6 58.14 0.00 26.8 4 3.70 1.66 9.66 25

### Ranked Daily Visibility Change for Wolf Island (Top 20 Days for Each Year)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_ OC %_EC %_PMC %_PMF Ranking 2001 191 1697 7.667 7.580 0.087 3.7 57.66 0.00 25.9 5 3.58 3.49 9.32 1 2001 189 1697 7.667 7.580 0.087 3.7 57.33 0.00 26.3 5 3.59 3.39 9.35 2 2001 192 1696 7.655 7.580 0.075 3.7 57.55 0.00 25.9 3 3.57 3.64 9.31 3 2001 34 1697 7.652 7.580 0.072 3.1 53.54 0.00 28.75 3.96 3.41 10.33 4 2001 360 1674 7.650 7.580 0.070 3.5 54.91 0.00 27.0 4 3.65 4.88 9.52 5 2001 10 1674 7.647 7.580 0.067 3.4 54.66 0.00 26.83 3.69 5.20 9.63 6 2001 66 1668 7.638 7.580 0.058 3.1 53.99 0.00 29.06 4.00 2.51 10.43 7 2001 61 1697 7.634 7.580 0.054 3.1 52.66 0.00 28.37 3.90 4.88 10.18 8 2001 337 1697 7.630 7.580 0.050 3.5 56.25 0.00 26.8 8 3.69 3.54 9.63 9 2001 110 1697 7.629 7.580 0.049 3.0 52.81 0.00 29.3 6 4.04 3.24 10.54 10 2001 359 1696 7.621 7.580 0.041 3.5 56.24 0.00 27.3 3 3.72 3.02 9.70 11 2001 270 1668 7.613 7.580 0.034 4.0 60.48 0.00 25.0 4 3.46 1.99 9.03 12 2001 234 1697 7.613 7.580 0.033 4.1 59.84 0.00 24.2 8 3.35 3.80 8.73 13 2001 147 1668 7.613 7.580 0.033 3.3 55.56 0.00 27.9 7 3.86 2.55 10.06 14 2001 176 1697 7.612 7.580 0.032 3.7 57.61 0.00 25.8 2 3.57 3.71 9.30 15 2001 195 1697 7.611 7.580 0.031 3.7 56.86 0.00 25.8 1 3.54 4.55 9.23 16 2001 237 1697 7.609 7.580 0.029 4.1 60.47 0.00 24.2 1 3.36 3.18 8.77 17 2001 344 1697 7.608 7.580 0.028 3.5 55.31 0.00 26.4 5 3.63 5.13 9.47 18 2001 190 1697 7.608 7.580 0.028 3.7 57.58 0.00 26.9 6 3.63 2.36 9.46 19 2001 7 1696 7.607 7.580 0.027 3.4 55.54 0.00 27.21 3.75 3.72 9.78 20

2002 332 1668 7.664 7.580 0.084 3.5 56.05 0.00 26.7 0 3.68 3.98 9.59 1 2002 64 1697 7.664 7.580 0.084 3.1 54.06 0.00 29.05 4.00 2.45 10.44 2 2002 16 1697 7.653 7.580 0.073 3.4 56.13 0.00 27.80 3.81 2.35 9.92 3 2002 198 1697 7.644 7.580 0.064 3.7 57.53 0.00 25.9 0 3.57 3.70 9.30 4 2002 350 1675 7.639 7.580 0.059 3.5 57.06 0.00 27.1 4 3.74 2.31 9.75 5 2002 351 1696 7.638 7.580 0.058 3.5 55.84 0.00 26.4 7 3.66 4.50 9.53 6 2002 17 1668 7.638 7.580 0.058 3.4 54.01 0.00 28.15 3.74 4.34 9.75 7 2002 111 1696 7.634 7.580 0.055 3.0 52.20 0.00 29.0 3 4.00 4.36 10.42 8 2002 290 1668 7.633 7.580 0.053 3.7 57.31 0.00 26.1 1 3.57 3.70 9.31 9 2002 338 1691 7.631 7.580 0.051 3.5 56.04 0.00 26.5 7 3.67 4.15 9.57 10 2002 4 1668 7.627 7.580 0.047 3.4 55.32 0.00 27.06 3.73 4.15 9.73 11 2002 201 1685 7.626 7.580 0.046 3.7 58.78 0.00 26.3 6 3.64 1.73 9.49 12 2002 327 1668 7.623 7.580 0.043 3.5 56.98 0.00 27.0 0 3.73 2.56 9.73 13 2002 36 1668 7.621 7.580 0.041 3.1 53.37 0.00 28.73 3.95 3.64 10.31 14 2002 291 1668 7.613 7.580 0.033 3.7 56.34 0.00 26.5 2 3.56 4.29 9.28 15 2002 154 1668 7.613 7.580 0.033 3.7 58.23 0.00 26.1 7 3.61 2.58 9.41 16 2002 59 1696 7.610 7.580 0.030 3.1 53.45 0.00 28.98 3.97 3.24 10.36 17 2002 363 1669 7.608 7.580 0.028 3.5 56.28 0.00 26.8 3 3.69 3.57 9.63 18 2002 18 1697 7.606 7.580 0.026 3.4 55.73 0.00 27.54 3.77 3.12 9.84 19 2002 255 1697 7.604 7.580 0.024 4.0 60.09 0.00 24.8 4 3.44 2.67 8.96 20

2003 43 1669 7.655 7.580 0.075 3.1 53.00 0.00 28.57 3.93 4.25 10.24 1 2003 7 1696 7.634 7.580 0.054 3.4 54.81 0.00 27.19 3.72 4.60 9.69 2 2003 5 1697 7.633 7.580 0.053 3.4 55.26 0.00 26.86 3.72 4.47 9.70 3 2003 104 1674 7.631 7.580 0.051 3.0 52.42 0.00 29.2 4 4.02 3.85 10.47 4 2003 18 1691 7.631 7.580 0.051 3.4 54.92 0.00 27.24 3.73 4.40 9.71 5 2003 33 1691 7.628 7.580 0.048 3.1 53.70 0.00 28.85 3.97 3.10 10.37 6 2003 296 1691 7.627 7.580 0.047 3.7 58.29 0.00 26.2 7 3.62 2.39 9.43 7 2003 154 1668 7.617 7.580 0.038 3.7 58.63 0.00 26.1 5 3.62 2.15 9.45 8 2003 346 1696 7.616 7.580 0.036 3.5 57.35 0.00 26.8 2 3.73 2.36 9.74 9 2003 41 1691 7.612 7.580 0.032 3.1 54.13 0.00 28.84 3.99 2.63 10.41 10 2003 135 1668 7.611 7.580 0.031 3.3 55.12 0.00 27.7 7 3.83 3.28 9.99 11 2003 34 1696 7.611 7.580 0.031 3.1 53.02 0.00 28.52 3.93 4.29 10.24 12 2003 151 1685 7.610 7.580 0.030 3.3 54.98 0.00 27.6 7 3.82 3.57 9.96 13 2003 334 1674 7.609 7.580 0.029 3.5 55.35 0.00 26.2 8 3.63 5.28 9.46 14 2003 102 1668 7.609 7.580 0.029 3.0 51.69 0.00 28.9 9 3.97 5.00 10.35 15 2003 336 1668 7.607 7.580 0.027 3.5 55.64 0.00 26.4 2 3.64 4.79 9.50 16 2003 153 1668 7.606 7.580 0.026 3.7 57.94 0.00 25.9 2 3.58 3.20 9.35 17 2003 330 1669 7.605 7.580 0.025 3.5 57.70 0.00 27.1 7 3.77 1.53 9.82 18 2003 343 1691 7.604 7.580 0.024 3.5 56.38 0.00 26.7 2 3.69 3.58 9.62 19 2003 312 1668 7.604 7.580 0.024 3.5 55.38 0.00 26.1 3 3.62 5.44 9.44 20

### Ranked Daily Visibility Change for Wolf Island (Top 25 Days Over Three Years)

% of Modeled Extinction by Species

YEAR DAY REC DV(Total) DV(BKG) DELTA DV F(RH) %_SO4 %_NO3 %_ OC %_EC %_PMC %_PMF Ranking 2001 191 1697 7.667 7.580 0.087 3.7 57.66 0.00 25.9 5 3.58 3.49 9.32 1 2001 189 1697 7.667 7.580 0.087 3.7 57.33 0.00 26.3 5 3.59 3.39 9.35 2 2002 332 1668 7.664 7.580 0.084 3.5 56.05 0.00 26.7 0 3.68 3.98 9.59 3 2002 64 1697 7.664 7.580 0.084 3.1 54.06 0.00 29.05 4.00 2.45 10.44 4 2001 192 1696 7.655 7.580 0.075 3.7 57.55 0.00 25.9 3 3.57 3.64 9.31 5 2003 43 1669 7.655 7.580 0.075 3.1 53.00 0.00 28.57 3.93 4.25 10.24 6 2002 16 1697 7.653 7.580 0.073 3.4 56.13 0.00 27.80 3.81 2.35 9.92 7 2001 34 1697 7.652 7.580 0.072 3.1 53.54 0.00 28.75 3.96 3.41 10.33 8 2001 360 1674 7.650 7.580 0.070 3.5 54.91 0.00 27.0 4 3.65 4.88 9.52 9 2001 10 1674 7.647 7.580 0.067 3.4 54.66 0.00 26.83 3.69 5.20 9.63 10 2002 198 1697 7.644 7.580 0.064 3.7 57.53 0.00 25.9 0 3.57 3.70 9.30 11 2002 350 1675 7.639 7.580 0.059 3.5 57.06 0.00 27.1 4 3.74 2.31 9.75 12 2001 66 1668 7.638 7.580 0.058 3.1 53.99 0.00 29.06 4.00 2.51 10.43 13 2002 351 1696 7.638 7.580 0.058 3.5 55.84 0.00 26.4 7 3.66 4.50 9.53 14 2002 17 1668 7.638 7.580 0.058 3.4 54.01 0.00 28.15 3.74 4.34 9.75 15 2002 111 1696 7.634 7.580 0.055 3.0 52.20 0.00 29.0 3 4.00 4.36 10.42 16 2001 61 1697 7.634 7.580 0.054 3.1 52.66 0.00 28.37 3.90 4.88 10.18 17 2003 7 1696 7.634 7.580 0.054 3.4 54.81 0.00 27.19 3.72 4.60 9.69 18 2002 290 1668 7.633 7.580 0.053 3.7 57.31 0.00 26.1 1 3.57 3.70 9.31 19 2003 5 1697 7.633 7.580 0.053 3.4 55.26 0.00 26.86 3.72 4.47 9.70 20 2002 338 1691 7.631 7.580 0.051 3.5 56.04 0.00 26.5 7 3.67 4.15 9.57 21 2003 104 1674 7.631 7.580 0.051 3.0 52.42 0.00 29.2 4 4.02 3.85 10.47 22 2003 18 1691 7.631 7.580 0.051 3.4 54.92 0.00 27.24 3.73 4.40 9.71 23 2001 337 1697 7.630 7.580 0.050 3.5 56.25 0.00 26.8 8 3.69 3.54 9.63 24 2001 110 1697 7.629 7.580 0.049 3.0 52.81 0.00 29.3 6 4.04 3.24 10.54 25