# BART Exemption Modeling Report:

Georgia Power Company Plant Branch

Prepared by:

Southern Company Services and ENSR Corporation for Georgia Power Company

September 2006September 2006 

### i 091506 Branch 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 Branch BART Modeling Report.doc 

# List of Tables

Table 2-1 Plant Branch modeling emission paramete rs ................................................ ........................ 2-3 Table 3-1 Summary of Results – Plant Branch Refin ed BART Exemption Modeling......................... ... 3-1



# List of Figures

Figure 1-1 Location of PSD Class I Areas in relation to Plant Branch ............................................. ........ 1-2September 2006 1-1 091506 Branch 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 Branch, located near Albany, which is owned and operated by Georgia Powe r Company, has been identified as a BART-eligible sou rce. The modeling procedures outlined in the sourc especific BART modeling protocol for Plant Branch we re used to determine whether the source is subject to BART requirements (exemption modeling). The modeli ng procedures 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 Branc h are BART-eligible for PM. Figure 1-1 shows a plo t of Plant Branch relative to nearby Class I Areas. There are six Class I areas within 300 km of the plant: Cohu tta (218.6 km), Great Smoky Mountains (250.5 km), Joyce Kilmer (247.4 km), Shining Rock (242.5 km), Okefenokee (254.8 km), and Wolf Island (274.4 km). The BART e xemption modeling was conducted for these Class I areas in accordance with the referenced VISTAS comm on BART modeling protocol and the procedures described in the source-specific BART modeling prot ocol.September 2006 1-2 091506 Branch BART Modeling Report.doc 

### Figure 1-1 Location of Class I Areas in Relation to Plant BranchSeptember 2006 2-1 091506 Branch 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 B ranch are discussed in this section. The Georgia Environment al 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 eastern bituminous coal the baseline H 2 

### SO 4 

### release rate is in the range of 0.3 to 0.8% of the SO 2 

### emissions. Appendix A of the site-specific modeling protocol provides 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 Branch 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 Branch BART Modeling Report.docTable 2-1 Plant Branch 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 1 285,644 3,675,169 304.8110.36.9 24.9 394.1 6392.83 1427.65 80.60 41.34 22.98 18.35 17.68 0.68 39.26 18.81 20.46Baseline Unit 2 285,644 3,675,169 304.8110.36.9 24.9 394.1 9709.09 1494.44 113.42 53.79 29.91 23.88 23.00 0.88 59.63 28.57 31.07Baseline Unit 3 285,644 3,675,169 304.8110.38.8 23.4 399.710506.482705.26 352.63 288.10160.18 127.92 123.184.73 64.53 30.91 33.62Baseline Unit 4 285,644 3,675,169 304.8110.38.8 23.4 399.710867.813544.99 444.28 377.53209.91 167.62 161.426.20 66.75 31.97 34.78Baseline 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 1-4 285,644 3,675,169 148.4110.311.2 24.2 396.937476.219172.34 990.93 760.76422.98 337.78 325.28 12.50 230.17 110.24 119.92Stack 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 1-4 285,644 3,675,169 148.4110.311.2 24.2 396.9 4722.00 1155.72 124.86 95.86 53.3042.56 40.99 1.57 29.00 13.89 15.111SO2and 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 487 ft (148.4 m) is less than actual height therefore GEP height is used for modeling.September 2006 3-1 091506 Branch 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 Branch’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 Branch BART Modeling Report.doc 

### Table 3-1 Summary of Results – Plant Branch Refined 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 218.6 0 0 0.11 0 0 0.17 0 0 0.14 0.17 0.14

Great Smoky Mountains 250.5 0 0 0.11 0 0 0.08 0 0 0.09 0.11 0.09

Joyce Kilmer 247.4 0 0 0.09 0 0 0.07 0 0 0.08 0.09 0.08

Shining Rock 242.5 0 0 0.08 0 0 0.07 0 0 0.09 0.09 0.08

Okefenokee 254.8 0 0 0.10 0 0 0.12 0 0 0.10 0.12 0.10

Wolf Island 274.4 0 0 0.11 0 0 0.08 0 0 0.09 0.11 0.09

# 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 287 97 7.787 7.599 0.188 3.8 61.25 0.00 17.35 4.51 5.11 11.77 1 2001 307 3 7.783 7.599 0.184 3.4 58.51 0.00 18.53 4 .81 5.59 12.56 2 2001 199 3 7.771 7.599 0.172 4.0 63.20 0.00 17.01 4 .42 3.84 11.54 3 2001 171 16 7.749 7.599 0.150 3.8 59.95 0.00 16.98 4.41 7.14 11.52 4 2001 129 181 7.741 7.599 0.142 3.4 57.39 0.00 18.17 4.72 7.39 12.32 5 2001 328 1 7.736 7.599 0.137 3.4 59.04 0.00 18.69 4 .86 4.73 12.68 6 2001 121 97 7.731 7.599 0.132 2.8 54.30 0.00 20.88 5.42 5.25 14.16 7 2001 251 8 7.710 7.599 0.111 4.2 62.32 0.00 15.98 4 .15 6.72 10.83 8 2001 306 16 7.704 7.599 0.105 3.4 59.43 0.00 18.82 4.89 4.11 12.76 9 2001 247 8 7.697 7.599 0.099 4.2 62.68 0.00 16.07 4 .17 6.18 10.90 10 2001 123 9 7.694 7.599 0.096 3.4 58.40 0.00 18.49 4 .80 5.76 12.54 11 2001 30 214 7.695 7.599 0.096 3.3 58.79 0.00 19.18 4.98 4.05 13.01 12 2001 284 9 7.692 7.599 0.094 3.8 59.59 0.00 16.88 4 .39 7.69 11.45 13 2001 198 3 7.693 7.599 0.094 4.0 63.32 0.00 17.04 4 .43 3.65 11.56 14 2001 293 8 7.689 7.599 0.091 3.8 60.16 0.00 17.04 4 .43 6.81 11.56 15 2001 124 8 7.686 7.599 0.088 3.4 57.11 0.00 18.08 4 .70 7.84 12.26 16 2001 351 97 7.679 7.599 0.080 3.5 59.12 0.00 18.18 4.72 5.64 12.33 17 2001 252 8 7.676 7.599 0.078 4.2 64.18 0.00 16.45 4 .27 3.94 11.16 18 2001 219 1 7.675 7.599 0.076 4.2 63.17 0.00 16.19 4 .21 5.46 10.98 19 2001 178 3 7.674 7.599 0.075 3.8 61.56 0.00 17.44 4 .53 4.64 11.83 20

2002 190 97 7.844 7.599 0.246 4.0 61.21 0.00 16.47 4.28 6.86 11.17 1 2002 277 1 7.810 7.599 0.211 3.8 61.57 0.00 17.44 4 .53 4.63 11.83 2 2002 163 8 7.797 7.599 0.198 3.8 60.39 0.00 17.11 4 .44 6.45 11.60 3 2002 276 3 7.787 7.599 0.188 3.8 60.35 0.00 17.10 4 .44 6.51 11.60 4 2002 68 8 7.778 7.599 0.179 3.0 54.58 0.00 19.59 5. 09 7.46 13.28 5 2002 41 3 7.768 7.599 0.170 3.1 56.12 0.00 19.49 5. 06 6.12 13.22 6 2002 298 9 7.768 7.599 0.169 3.8 60.17 0.00 17.05 4 .43 6.80 11.56 7 2002 263 179 7.766 7.599 0.167 4.2 63.36 0.00 16.24 4.22 5.17 11.01 8 2002 148 8 7.759 7.599 0.160 3.4 58.53 0.00 18.53 4 .81 5.56 12.57 9 2002 223 181 7.752 7.599 0.153 4.2 63.77 0.00 16.35 4.25 4.55 11.09 10 2002 278 220 7.728 7.599 0.129 3.8 60.07 0.00 17.02 4.42 6.95 11.54 11 2002 72 1 7.724 7.599 0.125 3.0 55.07 0.00 19.76 5. 13 6.63 13.40 12 2002 235 218 7.721 7.599 0.123 4.2 63.23 0.00 16.21 4.21 5.37 10.99 13 2002 47 9 7.720 7.599 0.122 3.1 55.50 0.00 19.27 5. 01 7.15 13.07 14 2002 149 2 7.707 7.599 0.109 3.4 58.24 0.00 18.44 4 .79 6.03 12.51 15 2002 222 214 7.705 7.599 0.107 4.2 63.74 0.00 16.34 4.24 4.59 11.08 16 2002 98 3 7.703 7.599 0.105 2.8 54.18 0.00 20.83 5. 41 5.44 14.13 17 2002 224 3 7.702 7.599 0.104 4.2 64.29 0.00 16.48 4 .28 3.78 11.18 18 2002 177 3 7.672 7.599 0.074 3.8 60.86 0.00 17.24 4 .48 5.73 11.69 19 2002 225 97 7.669 7.599 0.071 4.2 64.73 0.00 16.59 4.31 3.12 11.25 20

2003 305 46 8.018 7.599 0.419 3.8 60.43 0.00 17.12 4.45 6.38 11.61 1 2003 363 16 7.955 7.599 0.356 3.5 58.19 0.00 17.90 4.65 7.12 12.14 2 2003 38 8 7.830 7.599 0.231 3.1 54.66 0.00 18.98 4. 93 8.56 12.87 3 2003 323 156 7.758 7.599 0.160 3.4 57.64 0.00 18.25 4.74 6.99 12.38 4 2003 245 181 7.759 7.599 0.160 4.2 62.79 0.00 16.09 4.18 6.02 10.92 5 2003 331 8 7.758 7.599 0.159 3.4 56.76 0.00 17.97 4 .67 8.42 12.19 6 2003 64 3 7.757 7.599 0.158 3.0 55.12 0.00 19.78 5. 14 6.56 13.41 7 2003 332 97 7.735 7.599 0.136 3.4 58.20 0.00 18.43 4.79 6.09 12.50 8 2003 281 3 7.719 7.599 0.121 3.8 61.50 0.00 17.42 4 .53 4.73 11.82 9 2003 270 3 7.720 7.599 0.121 4.2 65.05 0.00 16.67 4 .33 2.64 11.31 10 2003 234 3 7.717 7.599 0.118 4.2 63.15 0.00 16.19 4 .20 5.49 10.98 11 2003 119 3 7.682 7.599 0.084 2.8 54.02 0.00 20.77 5 .40 5.73 14.09 12 2003 269 16 7.681 7.599 0.082 4.2 63.70 0.00 16.33 4.24 4.66 11.07 13 2003 316 3 7.677 7.599 0.079 3.4 57.15 0.00 18.10 4 .70 7.78 12.27 14 2003 364 2 7.677 7.599 0.078 3.5 58.55 0.00 18.01 4 .68 6.54 12.21 15 2003 226 218 7.675 7.599 0.077 4.2 63.62 0.00 16.31 4.24 4.77 11.06 16 2003 309 179 7.668 7.599 0.070 3.4 56.38 0.00 17.85 4.64 9.02 12.11 17 2003 246 3 7.668 7.599 0.069 4.2 63.72 0.00 16.33 4 .24 4.62 11.08 18 2003 53 179 7.667 7.599 0.068 3.1 55.38 0.00 19.23 5.00 7.35 13.04 19 2003 97 220 7.666 7.599 0.067 2.8 53.84 0.00 20.70 5.38 6.04 14.04 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 305 46 8.018 7.599 0.419 3.8 60.43 0.00 17.12 4.45 6.38 11.61 1 2003 363 16 7.955 7.599 0.356 3.5 58.19 0.00 17.90 4.65 7.12 12.14 2 2002 190 97 7.844 7.599 0.246 4.0 61.21 0.00 16.47 4.28 6.86 11.17 3 2003 38 8 7.830 7.599 0.231 3.1 54.66 0.00 18.98 4. 93 8.56 12.87 4 2002 277 1 7.810 7.599 0.211 3.8 61.57 0.00 17.44 4 .53 4.63 11.83 5 2002 163 8 7.797 7.599 0.198 3.8 60.39 0.00 17.11 4 .44 6.45 11.60 6 2001 287 97 7.787 7.599 0.188 3.8 61.25 0.00 17.35 4.51 5.11 11.77 7 2002 276 3 7.787 7.599 0.188 3.8 60.35 0.00 17.10 4 .44 6.51 11.60 8 2001 307 3 7.783 7.599 0.184 3.4 58.51 0.00 18.53 4 .81 5.59 12.56 9 2002 68 8 7.778 7.599 0.179 3.0 54.58 0.00 19.59 5. 09 7.46 13.28 10 2001 199 3 7.771 7.599 0.172 4.0 63.20 0.00 17.01 4 .42 3.84 11.54 11 2002 41 3 7.768 7.599 0.170 3.1 56.12 0.00 19.49 5. 06 6.12 13.22 12 2002 298 9 7.768 7.599 0.169 3.8 60.17 0.00 17.05 4 .43 6.80 11.56 13 2002 263 179 7.766 7.599 0.167 4.2 63.36 0.00 16.24 4.22 5.17 11.01 14 2002 148 8 7.759 7.599 0.160 3.4 58.53 0.00 18.53 4 .81 5.56 12.57 15 2003 323 156 7.758 7.599 0.160 3.4 57.64 0.00 18.25 4.74 6.99 12.38 16 2003 245 181 7.759 7.599 0.160 4.2 62.79 0.00 16.09 4.18 6.02 10.92 17 2003 331 8 7.758 7.599 0.159 3.4 56.76 0.00 17.97 4 .67 8.42 12.19 18 2003 64 3 7.757 7.599 0.158 3.0 55.12 0.00 19.78 5. 14 6.56 13.41 19 2002 223 181 7.752 7.599 0.153 4.2 63.77 0.00 16.35 4.25 4.55 11.09 20 2001 171 16 7.749 7.599 0.150 3.8 59.95 0.00 16.98 4.41 7.14 11.52 21 2001 129 181 7.741 7.599 0.142 3.4 57.39 0.00 18.17 4.72 7.39 12.32 22 2001 328 1 7.736 7.599 0.137 3.4 59.04 0.00 18.69 4 .86 4.73 12.68 23 2003 332 97 7.735 7.599 0.136 3.4 58.20 0.00 18.43 4.79 6.09 12.50 24 2001 121 97 7.731 7.599 0.132 2.8 54.30 0.00 20.88 5.42 5.25 14.16 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 334 336 7.814 7.599 0.216 3.3 57.47 0 18.75 4. 87 6.19 12.72 1 2001 327 351 7.768 7.599 0.169 3.3 58.29 0 19.01 4. 94 4.86 12.9 2 2001 51 470 7.761 7.599 0.162 3 56.43 0 20.25 5.26 4.33 13.73 3 2001 179 431 7.748 7.599 0.15 3.9 62.5 0 17.25 4.48 4.06 11.7 4 2001 36 367 7.717 7.599 0.119 3 56.24 0 20.18 5.24 4.64 13.69 5 2001 286 325 7.717 7.599 0.118 3.8 61.73 0 17.49 4. 54 4.38 11.86 6 2001 40 513 7.717 7.599 0.118 3 56.31 0 20.21 5.25 4.54 13.7 7 2001 329 703 7.71 7.599 0.111 3.3 56.19 0 18.33 4.7 6 8.29 12.43 8 2001 229 363 7.699 7.599 0.1 4 62.22 0 16.75 4.35 5 .33 11.36 9 2001 56 770 7.695 7.599 0.096 3 54.19 0 19.45 5.05 8.13 13.19 10 2001 121 340 7.692 7.599 0.093 2.7 54.26 0 21.63 5. 62 3.82 14.67 11 2001 114 605 7.692 7.599 0.093 2.7 51.57 0 20.56 5. 34 8.57 13.95 12 2001 181 652 7.688 7.599 0.09 3.9 61.25 0 16.91 4.3 9 5.99 11.47 13 2001 41 513 7.686 7.599 0.087 3 54.6 0 19.6 5.09 7. 42 13.29 14 2001 357 513 7.683 7.599 0.085 3.4 57.04 0 18.06 4. 69 7.95 12.25 15 2001 306 435 7.679 7.599 0.08 3.3 56.65 0 18.48 4.8 7.53 12.53 16 2001 27 322 7.678 7.599 0.08 3.3 59.7 0 19.48 5.06 2.55 13.21 17 2001 199 340 7.678 7.599 0.079 3.8 62.27 0 17.64 4. 58 3.55 11.96 18 2001 129 366 7.668 7.599 0.069 3.2 57.72 0 19.42 5. 04 4.65 13.17 19 2001 333 465 7.666 7.599 0.067 3.3 56.65 0 18.48 4. 8 7.54 12.53 20

2002 51 391 7.868 7.599 0.269 3 55.12 0 19.78 5.14 6.54 13.42 1 2002 223 366 7.796 7.599 0.197 4 63.3 0 17.04 4.43 3.68 11.55 2 2002 320 513 7.793 7.599 0.195 3.3 57.19 0 18.66 4. 85 6.65 12.65 3 2002 222 429 7.715 7.599 0.116 4 63.43 0 17.07 4.43 3.48 11.58 4 2002 148 429 7.687 7.599 0.088 3.2 57.85 0 19.46 5. 06 4.44 13.2 5 2002 226 339 7.683 7.599 0.084 4 62.66 0 16.86 4.38 4.67 11.44 6 2002 74 513 7.676 7.599 0.077 2.9 53.93 0 20.02 5.2 7.28 13.58 7 2002 313 513 7.675 7.599 0.076 3.3 59.92 0 19.55 5. 08 2.19 13.26 8 2002 89 605 7.675 7.599 0.076 2.9 54.72 0 20.31 5.2 8 5.91 13.78 9 2003 1 364 7.674 7.599 0.075 3.4 58.04 0 18.38 4.77 6.34 12.46 10 2002 227 947 7.674 7.599 0.075 4 62.88 0 16.92 4.4 4.32 11.48 11 2002 224 322 7.671 7.599 0.073 4 63.93 0 17.21 4.47 2.73 11.67 12 2002 235 365 7.667 7.599 0.068 4 62.86 0 16.92 4.39 4.35 11.47 13 2002 99 514 7.661 7.599 0.062 2.7 54.07 0 21.56 5.6 4.14 14.62 14 2002 293 513 7.66 7.599 0.061 3.8 60.34 0 17.1 4.44 6.53 11.59 15 2002 47 371 7.657 7.599 0.058 3 55.15 0 19.79 5.14 6.49 13.42 16 2002 225 365 7.651 7.599 0.052 4 63.95 0 17.21 4.47 2.7 11.67 17 2002 190 606 7.651 7.599 0.052 3.8 61.37 0 17.39 4. 52 4.93 11.79 18 2002 93 339 7.651 7.599 0.052 2.7 54.79 0 21.85 5.6 7 2.88 14.82 19 2002 163 606 7.649 7.599 0.05 3.9 62.19 0 17.17 4.4 6 4.54 11.64 20

2003 258 371 7.812 7.599 0.213 4.2 63.75 0 16.34 4. 24 4.58 11.08 1 2003 351 605 7.785 7.599 0.186 3.4 58.02 0 18.37 4. 77 6.38 12.46 2 2003 122 436 7.755 7.599 0.156 3.2 56.96 0 19.16 4. 98 5.9 13 3 2003 331 434 7.72 7.599 0.121 3.3 56.78 0 18.52 4.8 1 7.33 12.56 4 2003 106 513 7.714 7.599 0.115 2.7 52.73 0 21.03 5. 46 6.52 14.26 5 2003 245 429 7.704 7.599 0.105 4.2 63.93 0 16.39 4. 26 4.31 11.11 6 2003 288 605 7.694 7.599 0.095 3.8 59.74 0 16.93 4. 4 7.45 11.48 7 2003 364 510 7.691 7.599 0.093 3.4 57.87 0 18.32 4. 76 6.61 12.43 8 2003 107 710 7.692 7.599 0.093 2.7 52.42 0 20.9 5.4 3 7.08 14.17 9 2003 226 435 7.689 7.599 0.09 4 61.68 0 16.6 4.31 6 .15 11.26 10 2003 17 361 7.688 7.599 0.089 3.3 58.5 0 19.09 4.96 4.51 12.94 11 2003 344 423 7.678 7.599 0.08 3.4 58.4 0 18.49 4.8 5.77 12.54 12 2003 291 429 7.679 7.599 0.08 3.8 62.51 0 17.71 4.6 3.18 12.01 13 2003 329 364 7.676 7.599 0.078 3.3 57.4 0 18.73 4.8 6 6.31 12.7 14 2003 61 945 7.677 7.599 0.078 2.9 52.71 0 19.57 5.0 8 9.36 13.27 15 2003 363 422 7.676 7.599 0.077 3.4 57.08 0 18.07 4. 69 7.9 12.26 16 2003 299 382 7.669 7.599 0.07 3.8 61.81 0 17.51 4.5 5 4.26 11.88 17 2003 270 429 7.668 7.599 0.069 4.2 64.48 0 16.53 4. 29 3.49 11.21 18 2003 111 388 7.663 7.599 0.064 2.7 51.94 0 20.71 5. 38 7.93 14.04 19 2003 246 587 7.661 7.599 0.063 4.2 63.12 0 16.18 4. 2 5.53 10.97 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 2002 51 391 7.868 7.599 0.269 3.0 55.12 0 19.78 5.1 4 6.54 13.42 1 2001 334 336 7.814 7.599 0.216 3.3 57.47 0 18.75 4. 87 6.19 12.72 2 2003 258 371 7.812 7.599 0.213 4.2 63.75 0 16.34 4. 24 4.58 11.08 3 2002 223 366 7.796 7.599 0.197 4.0 63.3 0 17.04 4.4 3 3.68 11.55 4 2002 320 513 7.793 7.599 0.195 3.3 57.19 0 18.66 4. 85 6.65 12.65 5 2003 351 605 7.785 7.599 0.186 3.4 58.02 0 18.37 4. 77 6.38 12.46 6 2001 327 351 7.768 7.599 0.169 3.3 58.29 0 19.01 4. 94 4.86 12.9 7 2001 51 470 7.761 7.599 0.162 3.0 56.43 0 20.25 5.2 6 4.33 13.73 8 2003 122 436 7.755 7.599 0.156 3.2 56.96 0 19.16 4. 98 5.9 13 9 2001 179 431 7.748 7.599 0.150 3.9 62.5 0 17.25 4.4 8 4.06 11.7 10 2003 331 434 7.720 7.599 0.121 3.3 56.78 0 18.52 4. 81 7.33 12.56 11 2001 36 367 7.717 7.599 0.119 3.0 56.24 0 20.18 5.2 4 4.64 13.69 12 2001 286 325 7.717 7.599 0.118 3.8 61.73 0 17.49 4. 54 4.38 11.86 13 2001 40 513 7.717 7.599 0.118 3.0 56.31 0 20.21 5.2 5 4.54 13.7 14 2002 222 429 7.715 7.599 0.116 4.0 63.43 0 17.07 4. 43 3.48 11.58 15 2003 106 513 7.714 7.599 0.115 2.7 52.73 0 21.03 5. 46 6.52 14.26 16 2001 329 703 7.710 7.599 0.111 3.3 56.19 0 18.33 4. 76 8.29 12.43 17 2003 245 429 7.704 7.599 0.105 4.2 63.93 0 16.39 4. 26 4.31 11.11 18 2001 229 363 7.699 7.599 0.100 4.0 62.22 0 16.75 4. 35 5.33 11.36 19 2001 56 770 7.695 7.599 0.096 3.0 54.19 0 19.45 5.0 5 8.13 13.19 20 2003 288 605 7.694 7.599 0.095 3.8 59.74 0 16.93 4. 4 7.45 11.48 21 2001 121 340 7.692 7.599 0.093 2.7 54.26 0 21.63 5. 62 3.82 14.67 22 2001 114 605 7.692 7.599 0.093 2.7 51.57 0 20.56 5. 34 8.57 13.95 23 2003 364 510 7.691 7.599 0.093 3.4 57.87 0 18.32 4. 76 6.61 12.43 24 2003 107 710 7.692 7.599 0.093 2.7 52.42 0 20.9 5.4 3 7.08 14.17 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 327 225 7.785 7.608 0.176 3.3 58.03 0.00 18.93 4.92 5.28 12.84 1 2001 179 239 7.766 7.608 0.158 3.8 61.56 0.00 17.44 4.53 4.64 11.83 2 2001 36 221 7.740 7.608 0.132 3.1 56.74 0.00 19.70 5.12 5.08 13.36 3 2001 121 221 7.723 7.608 0.115 2.7 53.99 0.00 21.53 5.59 4.29 14.60 4 2001 199 221 7.702 7.608 0.094 4.0 63.41 0.00 17.07 4.43 3.51 11.57 5 2001 129 270 7.697 7.608 0.089 3.3 58.11 0.00 18.96 4.92 5.15 12.86 6 2001 358 239 7.696 7.608 0.088 3.5 59.62 0.00 18.34 4.76 4.84 12.44 7 2001 286 225 7.694 7.608 0.086 3.8 61.83 0.00 17.52 4.55 4.22 11.88 8 2001 306 278 7.691 7.608 0.083 3.3 56.73 0.00 18.51 4.81 7.40 12.55 9 2001 229 248 7.691 7.608 0.083 4.2 62.71 0.00 16.07 4.18 6.13 10.90 10 2001 27 225 7.689 7.608 0.081 3.3 59.45 0.00 19.39 5.04 2.96 13.15 11 2001 30 221 7.680 7.608 0.072 3.3 58.40 0.00 19.05 4.95 4.67 12.92 12 2001 340 225 7.678 7.608 0.070 3.5 58.87 0.00 18.11 4.70 6.04 12.28 13 2001 178 253 7.677 7.608 0.069 3.8 60.30 0.00 17.08 4.44 6.59 11.59 14 2001 198 225 7.674 7.608 0.066 4.0 63.15 0.00 17.00 4.41 3.92 11.53 15 2001 113 241 7.674 7.608 0.066 2.7 51.28 0.00 20.45 5.31 9.09 13.87 16 2001 123 278 7.671 7.608 0.063 3.3 58.68 0.00 19.14 4.97 4.22 12.98 17 2001 307 278 7.669 7.608 0.061 3.3 57.97 0.00 18.91 4.91 5.37 12.83 18 2001 56 258 7.668 7.608 0.060 3.1 55.04 0.00 19.11 4.97 7.92 12.96 19 2001 293 278 7.657 7.608 0.049 3.8 60.92 0.00 17.26 4.48 5.62 11.71 20

2002 223 221 7.837 7.608 0.229 4.2 64.21 0.00 16.46 4.28 3.89 11.16 1 2002 51 225 7.752 7.608 0.144 3.1 57.20 0.00 19.86 5.16 4.30 13.47 2 2002 222 239 7.735 7.608 0.127 4.2 64.32 0.00 16.49 4.28 3.73 11.18 3 2002 148 270 7.706 7.608 0.098 3.3 58.53 0.00 19.10 4.96 4.46 12.95 4 2002 235 221 7.702 7.608 0.093 4.2 63.67 0.00 16.32 4.24 4.70 11.07 5 2002 99 270 7.695 7.608 0.087 2.7 53.82 0.00 21.46 5.57 4.60 14.55 6 2002 224 225 7.686 7.608 0.078 4.2 64.92 0.00 16.64 4.32 2.83 11.29 7 2002 226 225 7.679 7.608 0.071 4.2 64.06 0.00 16.42 4.27 4.12 11.14 8 2002 47 221 7.677 7.608 0.069 3.1 55.76 0.00 19.37 5.03 6.71 13.13 9 2002 227 258 7.674 7.608 0.066 4.2 64.65 0.00 16.57 4.30 3.23 11.24 10 2002 225 221 7.667 7.608 0.059 4.2 65.02 0.00 16.67 4.33 2.68 11.30 11 2002 298 239 7.658 7.608 0.050 3.8 60.52 0.00 17.15 4.45 6.25 11.63 12 2002 263 270 7.658 7.608 0.050 4.2 63.78 0.00 16.35 4.25 4.54 11.09 13 2002 276 239 7.656 7.608 0.048 3.8 61.54 0.00 17.43 4.53 4.67 11.82 14 2002 163 310 7.656 7.608 0.048 3.8 61.37 0.00 17.39 4.52 4.93 11.79 15 2002 100 225 7.655 7.608 0.047 2.7 52.85 0.00 21.07 5.47 6.30 14.29 16 2002 190 317 7.654 7.608 0.046 4.0 62.40 0.00 16.79 4.36 5.05 11.39 17 2002 319 221 7.649 7.608 0.041 3.3 60.17 0.00 19.63 5.10 1.78 13.31 18 2002 115 239 7.647 7.608 0.039 2.7 53.38 0.00 21.28 5.53 5.38 14.43 19 2002 277 278 7.646 7.608 0.037 3.8 61.79 0.00 17.50 4.55 4.29 11.87 20

2003 258 269 7.811 7.608 0.203 4.2 63.91 0.00 16.38 4.26 4.35 11.11 1 2003 122 223 7.768 7.608 0.160 3.3 57.51 0.00 18.76 4.87 6.13 12.72 2 2003 245 239 7.755 7.608 0.147 4.2 63.50 0.00 16.28 4.23 4.95 11.04 3 2003 331 286 7.740 7.608 0.132 3.3 56.69 0.00 18.49 4.80 7.47 12.54 4 2003 226 253 7.722 7.608 0.114 4.2 62.58 0.00 16.04 4.17 6.34 10.88 5 2003 291 317 7.689 7.608 0.081 3.8 62.56 0.00 17.72 4.60 3.09 12.02 6 2003 246 253 7.688 7.608 0.079 4.2 62.96 0.00 16.14 4.19 5.76 10.95 7 2003 270 239 7.685 7.608 0.077 4.2 64.50 0.00 16.53 4.29 3.46 11.21 8 2003 304 270 7.682 7.608 0.074 3.8 62.04 0.00 17.58 4.57 3.90 11.92 9 2003 323 222 7.678 7.608 0.070 3.3 57.88 0.00 18.88 4.90 5.53 12.81 10 2003 305 310 7.677 7.608 0.069 3.8 60.69 0.00 17.19 4.47 5.99 11.66 11 2003 299 221 7.675 7.608 0.067 3.8 61.96 0.00 17.55 4.56 4.02 11.90 12 2003 234 270 7.670 7.608 0.062 4.2 62.89 0.00 16.12 4.19 5.87 10.93 13 2003 363 270 7.660 7.608 0.052 3.5 57.95 0.00 17.83 4.63 7.50 12.09 14 2003 106 225 7.660 7.608 0.052 2.7 53.55 0.00 21.35 5.55 5.07 14.48 15 2003 61 258 7.660 7.608 0.052 2.9 52.52 0.00 19.50 5.06 9.69 13.22 16 2003 309 258 7.659 7.608 0.051 3.3 56.27 0.00 18.36 4.77 8.15 12.45 17 2003 271 258 7.656 7.608 0.048 4.2 64.46 0.00 16.52 4.29 3.52 11.21 18 2003 300 258 7.655 7.608 0.047 3.8 60.01 0.00 17.00 4.42 7.04 11.53 19 2003 89 248 7.653 7.608 0.045 2.9 53.42 0.00 19.83 5.15 8.14 13.45 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 2002 223 221 7.837 7.608 0.229 4.2 64.21 0.00 16.46 4.28 3.89 11.16 1 2003 258 269 7.811 7.608 0.203 4.2 63.91 0.00 16.38 4.26 4.35 11.11 2 2001 327 225 7.785 7.608 0.176 3.3 58.03 0.00 18.93 4.92 5.28 12.84 3 2003 122 223 7.768 7.608 0.160 3.3 57.51 0.00 18.76 4.87 6.13 12.72 4 2001 179 239 7.766 7.608 0.158 3.8 61.56 0.00 17.44 4.53 4.64 11.83 5 2003 245 239 7.755 7.608 0.147 4.2 63.50 0.00 16.28 4.23 4.95 11.04 6 2002 51 225 7.752 7.608 0.144 3.1 57.20 0.00 19.86 5.16 4.30 13.47 7 2001 36 221 7.740 7.608 0.132 3.1 56.74 0.00 19.70 5.12 5.08 13.36 8 2003 331 286 7.740 7.608 0.132 3.3 56.69 0.00 18.49 4.80 7.47 12.54 9 2002 222 239 7.735 7.608 0.127 4.2 64.32 0.00 16.49 4.28 3.73 11.18 10 2001 121 221 7.723 7.608 0.115 2.7 53.99 0.00 21.53 5.59 4.29 14.60 11 2003 226 253 7.722 7.608 0.114 4.2 62.58 0.00 16.04 4.17 6.34 10.88 12 2002 148 270 7.706 7.608 0.098 3.3 58.53 0.00 19.10 4.96 4.46 12.95 13 2001 199 221 7.702 7.608 0.094 4.0 63.41 0.00 17.07 4.43 3.51 11.57 14 2002 235 221 7.702 7.608 0.093 4.2 63.67 0.00 16.32 4.24 4.70 11.07 15 2001 129 270 7.697 7.608 0.089 3.3 58.11 0.00 18.96 4.92 5.15 12.86 16 2001 358 239 7.696 7.608 0.088 3.5 59.62 0.00 18.34 4.76 4.84 12.44 17 2002 99 270 7.695 7.608 0.087 2.7 53.82 0.00 21.46 5.57 4.60 14.55 18 2001 286 225 7.694 7.608 0.086 3.8 61.83 0.00 17.52 4.55 4.22 11.88 19 2001 306 278 7.691 7.608 0.083 3.3 56.73 0.00 18.51 4.81 7.40 12.55 20 2001 229 248 7.691 7.608 0.083 4.2 62.71 0.00 16.07 4.18 6.13 10.90 21 2001 27 225 7.689 7.608 0.081 3.3 59.45 0.00 19.39 5.04 2.96 13.15 22 2003 291 317 7.689 7.608 0.081 3.8 62.56 0.00 17.72 4.60 3.09 12.02 23 2003 246 253 7.688 7.608 0.079 4.2 62.96 0.00 16.14 4.19 5.76 10.95 24 2002 224 225 7.686 7.608 0.078 4.2 64.92 0.00 16.64 4.32 2.83 11.29 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 333 1087 7.751 7.608 0.143 3.3 55.76 0 18.19 4 .73 8.99 12.34 1 2001 40 1058 7.749 7.608 0.141 3 54.6 0 19.59 5.09 7.43 13.29 2 2001 297 1059 7.732 7.608 0.124 3.8 60.09 0 17.02 4 .42 6.92 11.55 3 2001 181 1068 7.724 7.608 0.116 3.9 61.27 0 16.91 4 .39 5.96 11.47 4 2001 179 1068 7.71 7.608 0.102 3.9 60.1 0 16.59 4.3 1 7.74 11.25 5 2001 123 1062 7.702 7.608 0.094 3.4 59.47 0 18.83 4 .89 4.04 12.77 6 2001 114 1117 7.7 7.608 0.092 2.7 51.26 0 20.44 5.3 1 9.12 13.86 7 2001 220 1061 7.691 7.608 0.083 4.5 65.13 0 15.58 4 .05 4.68 10.57 8 2001 327 1063 7.685 7.608 0.077 3.3 56.79 0 18.53 4 .81 7.3 12.57 9 2001 51 1165 7.676 7.608 0.068 3 56.2 0 20.17 5.24 4.72 13.68 10 2001 41 1118 7.673 7.608 0.065 3 54.3 0 19.49 5.06 7.93 13.22 11 2001 122 1087 7.671 7.608 0.063 3.4 60.2 0 19.06 4. 95 2.85 12.93 12 2001 340 1058 7.67 7.608 0.062 3.4 56.42 0 17.86 4. 64 8.96 12.12 13 2001 199 1117 7.67 7.608 0.062 4.1 64.23 0 16.86 4. 38 3.09 11.44 14 2001 12 1068 7.67 7.608 0.061 3.3 55.63 0 18.15 4.7 1 9.2 12.31 15 2001 334 1118 7.667 7.608 0.059 3.3 56.94 0 18.57 4 .82 7.07 12.6 16 2001 180 1087 7.667 7.608 0.059 3.9 61.88 0 17.08 4 .44 5.01 11.59 17 2001 332 1062 7.663 7.608 0.055 3.3 55.77 0 18.19 4 .73 8.98 12.34 18 2001 141 1087 7.66 7.608 0.052 3.4 57.99 0 18.36 4. 77 6.43 12.45 19 2001 182 1087 7.653 7.608 0.045 3.9 61.59 0 17 4.42 5.45 11.53 20

2002 89 1063 7.773 7.608 0.165 2.9 54.35 0 20.18 5. 24 6.55 13.68 1 2002 320 1117 7.75 7.608 0.142 3.3 57.15 0 18.64 4. 84 6.72 12.64 2 2002 229 1062 7.717 7.608 0.109 4.5 65.12 0 15.58 4 .05 4.69 10.57 3 2002 313 1063 7.703 7.608 0.094 3.3 59.43 0 19.39 5 .04 3 13.15 4 2002 293 1059 7.697 7.608 0.089 3.8 60.26 0 17.07 4 .43 6.66 11.58 5 2002 227 1062 7.694 7.608 0.086 4.5 65.19 0 15.6 4. 05 4.58 10.58 6 2002 105 1058 7.682 7.608 0.074 2.7 51.65 0 20.59 5 .35 8.44 13.97 7 2002 86 1058 7.683 7.608 0.074 2.9 53.43 0 19.83 5. 15 8.14 13.45 8 2003 1 1117 7.676 7.608 0.068 3.4 57.22 0 18.12 4.7 1 7.67 12.29 9 2002 137 1058 7.676 7.608 0.068 3.4 59.17 0 18.74 4 .87 4.51 12.71 10 2002 226 1117 7.673 7.608 0.065 4.5 65.62 0 15.7 4. 08 3.95 10.65 11 2002 223 1117 7.672 7.608 0.064 4.5 66.6 0 15.93 4. 14 2.53 10.81 12 2002 51 1118 7.668 7.608 0.06 3 54.59 0 19.59 5.09 7.45 13.29 13 2002 224 1117 7.666 7.608 0.058 4.5 66.66 0 15.95 4 .14 2.42 10.82 14 2002 93 1062 7.666 7.608 0.058 2.7 53.54 0 21.35 5. 54 5.09 14.48 15 2002 15 1087 7.663 7.608 0.055 3.3 56.43 0 18.41 4. 78 7.88 12.49 16 2002 225 1063 7.659 7.608 0.051 4.5 66.61 0 15.94 4 .14 2.51 10.81 17 2002 278 1088 7.658 7.608 0.05 3.8 62.79 0 17.79 4. 62 2.74 12.06 18 2002 74 1118 7.658 7.608 0.05 2.9 53.58 0 19.89 5.1 7 7.86 13.49 19 2002 236 1068 7.654 7.608 0.046 4.5 65.85 0 15.75 4 .09 3.61 10.68 20

2003 351 1117 7.855 7.608 0.247 3.4 57.75 0 18.29 4 .75 6.81 12.4 1 2003 106 1064 7.761 7.608 0.153 2.7 52.15 0 20.79 5 .4 7.55 14.1 2 2003 288 1066 7.729 7.608 0.121 3.8 59.5 0 16.86 4. 38 7.83 11.43 3 2003 107 1104 7.721 7.608 0.113 2.7 51.77 0 20.64 5 .36 8.23 14 4 2003 344 1062 7.719 7.608 0.111 3.4 60.17 0 19.05 4 .95 2.9 12.92 5 2003 328 1068 7.712 7.608 0.103 3.3 56.51 0 18.44 4 .79 7.75 12.5 6 2003 291 1062 7.701 7.608 0.093 3.8 60.04 0 17.01 4 .42 7 11.54 7 2003 331 1118 7.698 7.608 0.09 3.3 56.83 0 18.54 4. 82 7.24 12.57 8 2003 142 1058 7.689 7.608 0.081 3.4 57.03 0 18.06 4 .69 7.98 12.25 9 2003 111 1062 7.685 7.608 0.077 2.7 51.03 0 20.35 5 .29 9.53 13.8 10 2003 247 1066 7.681 7.608 0.073 4.4 65.07 0 15.92 4 .14 4.07 10.8 11 2003 316 1062 7.678 7.608 0.07 3.3 58.53 0 19.09 4. 96 4.47 12.95 12 2003 271 1059 7.677 7.608 0.069 4.4 63.37 0 15.51 4 .03 6.58 10.52 13 2003 242 1058 7.676 7.608 0.068 4.5 64.78 0 15.5 4. 03 5.18 10.51 14 2003 178 1062 7.668 7.608 0.06 3.9 62.13 0 17.15 4. 46 4.62 11.63 15 2003 358 1062 7.665 7.608 0.057 3.4 56.89 0 18.01 4 .68 8.2 12.22 16 2003 170 1080 7.663 7.608 0.055 3.9 59.56 0 16.44 4 .27 8.58 11.15 17 2003 17 1063 7.659 7.608 0.051 3.3 57.17 0 18.65 4. 84 6.69 12.65 18 2003 364 1117 7.656 7.608 0.048 3.4 57.22 0 18.12 4 .71 7.66 12.29 19 2003 329 1117 7.654 7.608 0.046 3.3 56.72 0 18.5 4. 81 7.42 12.55 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 2003 351 1117 7.855 7.608 0.247 3.4 57.75 0.00 18.2 9 4.75 6.81 12.40 1 2002 89 1063 7.773 7.608 0.165 2.9 54.35 0.00 20.18 5.24 6.55 13.68 2 2003 106 1064 7.761 7.608 0.153 2.7 52.15 0.00 20.7 9 5.40 7.55 14.10 3 2001 333 1087 7.751 7.608 0.143 3.3 55.76 0.00 18.1 9 4.73 8.99 12.34 4 2002 320 1117 7.750 7.608 0.142 3.3 57.15 0.00 18.6 4 4.84 6.72 12.64 5 2001 40 1058 7.749 7.608 0.141 3.0 54.60 0.00 19.59 5.09 7.43 13.29 6 2001 297 1059 7.732 7.608 0.124 3.8 60.09 0.00 17.0 2 4.42 6.92 11.55 7 2003 288 1066 7.729 7.608 0.121 3.8 59.50 0.00 16.8 6 4.38 7.83 11.43 8 2001 181 1068 7.724 7.608 0.116 3.9 61.27 0.00 16.9 1 4.39 5.96 11.47 9 2003 107 1104 7.721 7.608 0.113 2.7 51.77 0.00 20.6 4 5.36 8.23 14.00 10 2003 344 1062 7.719 7.608 0.111 3.4 60.17 0.00 19.0 5 4.95 2.90 12.92 11 2002 229 1062 7.717 7.608 0.109 4.5 65.12 0.00 15.5 8 4.05 4.69 10.57 12 2003 328 1068 7.712 7.608 0.103 3.3 56.51 0.00 18.4 4 4.79 7.75 12.50 13 2001 179 1068 7.710 7.608 0.102 3.9 60.10 0.00 16.5 9 4.31 7.74 11.25 14 2001 123 1062 7.702 7.608 0.094 3.4 59.47 0.00 18.8 3 4.89 4.04 12.77 15 2002 313 1063 7.703 7.608 0.094 3.3 59.43 0.00 19.3 9 5.04 3.00 13.15 16 2003 291 1062 7.701 7.608 0.093 3.8 60.04 0.00 17.0 1 4.42 7.00 11.54 17 2001 114 1117 7.700 7.608 0.092 2.7 51.26 0.00 20.4 4 5.31 9.12 13.86 18 2003 331 1118 7.698 7.608 0.090 3.3 56.83 0.00 18.5 4 4.82 7.24 12.57 19 2002 293 1059 7.697 7.608 0.089 3.8 60.26 0.00 17.0 7 4.43 6.66 11.58 20 2002 227 1062 7.694 7.608 0.086 4.5 65.19 0.00 15.6 0 4.05 4.58 10.58 21 2001 220 1061 7.691 7.608 0.083 4.5 65.13 0.00 15.5 8 4.05 4.68 10.57 22 2003 142 1058 7.689 7.608 0.081 3.4 57.03 0.00 18.0 6 4.69 7.98 12.25 23 2001 327 1063 7.685 7.608 0.077 3.3 56.79 0.00 18.5 3 4.81 7.30 12.57 24 2003 111 1062 7.685 7.608 0.077 2.7 51.03 0.00 20.3 5 5.29 9.53 13.80 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 356 1581 7.871 7.608 0.263 3.6 59.85 0.00 17.9 0 4.65 5.46 12.14 1 2001 365 1645 7.744 7.608 0.135 3.6 60.24 0.00 18.0 1 4.68 4.85 12.22 2 2001 109 1581 7.723 7.608 0.115 3.0 55.76 0.00 20.0 1 5.20 5.45 13.57 3 2001 270 1666 7.719 7.608 0.111 4.0 63.73 0.00 17.1 5 4.46 3.02 11.63 4 2001 33 1667 7.709 7.608 0.101 3.2 56.89 0.00 19.14 4.97 6.01 12.98 5 2001 269 1667 7.708 7.608 0.099 4.0 63.42 0.00 17.0 7 4.43 3.49 11.58 6 2001 144 1421 7.703 7.608 0.095 3.6 60.75 0.00 18.1 7 4.72 4.04 12.32 7 2001 29 1644 7.703 7.608 0.095 3.5 59.09 0.00 18.17 4.72 5.69 12.33 8 2001 291 1421 7.690 7.608 0.082 3.8 60.90 0.00 17.2 5 4.48 5.67 11.70 9 2001 176 1667 7.688 7.608 0.080 3.7 60.99 0.00 17.7 5 4.61 4.62 12.04 10 2001 314 1655 7.682 7.608 0.074 3.5 58.68 0.00 18.0 5 4.69 6.34 12.24 11 2001 35 1667 7.681 7.608 0.073 3.2 58.60 0.00 19.72 5.12 3.19 13.37 12 2001 59 1421 7.669 7.608 0.061 3.2 56.65 0.00 19.06 4.95 6.42 12.92 13 2001 116 1560 7.666 7.608 0.058 3.0 55.60 0.00 19.9 5 5.18 5.73 13.53 14 2001 68 1272 7.666 7.608 0.057 3.1 54.85 0.00 19.05 4.95 8.24 12.92 15 2001 86 1356 7.665 7.608 0.056 3.1 56.41 0.00 19.59 5.09 5.62 13.29 16 2001 10 1631 7.665 7.608 0.056 3.5 59.66 0.00 18.35 4.77 4.77 12.45 17 2001 4 1538 7.663 7.608 0.055 3.5 60.21 0.00 18.52 4.81 3.89 12.56 18 2002 1 1466 7.662 7.608 0.054 3.6 61.89 0.00 18.51 4.81 2.24 12.55 19 2001 355 1466 7.661 7.608 0.053 3.6 61.74 0.00 18.4 6 4.80 2.48 12.52 20

2002 45 1631 7.815 7.608 0.207 3.2 56.75 0.00 19.09 4.96 6.25 12.95 1 2002 2 1631 7.759 7.608 0.151 3.5 59.46 0.00 18.29 4.75 5.09 12.40 2 2002 361 1631 7.732 7.608 0.124 3.6 61.84 0.00 18.4 9 4.80 2.32 12.54 3 2002 328 1466 7.730 7.608 0.122 3.5 59.17 0.00 18.2 0 4.73 5.55 12.34 4 2002 5 1582 7.730 7.608 0.122 3.5 59.42 0.00 18.28 4.75 5.16 12.40 5 2002 334 1661 7.726 7.608 0.118 3.5 57.95 0.00 17.8 2 4.63 7.51 12.09 6 2002 65 1639 7.726 7.608 0.118 3.1 56.73 0.00 19.70 5.12 5.10 13.36 7 2002 17 1421 7.724 7.608 0.116 3.5 59.05 0.00 18.16 4.72 5.75 12.32 8 2002 199 1591 7.722 7.608 0.114 3.7 60.60 0.00 17.6 3 4.58 5.22 11.96 9 2002 167 1631 7.710 7.608 0.102 3.7 59.47 0.00 17.3 0 4.49 7.00 11.73 10 2002 155 1661 7.708 7.608 0.100 3.7 61.51 0.00 17.9 0 4.65 3.80 12.14 11 2002 333 1466 7.705 7.608 0.097 3.5 60.62 0.00 18.6 5 4.84 3.24 12.65 12 2002 219 1666 7.698 7.608 0.090 4.1 63.71 0.00 16.7 3 4.35 3.87 11.35 13 2002 201 1559 7.693 7.608 0.085 3.7 60.13 0.00 17.5 0 4.54 5.96 11.87 14 2002 318 1466 7.687 7.608 0.079 3.5 60.46 0.00 18.6 0 4.83 3.50 12.61 15 2002 95 1235 7.687 7.608 0.079 3.0 57.00 0.00 20.46 5.31 3.35 13.87 16 2002 82 1631 7.681 7.608 0.073 3.1 56.48 0.00 19.61 5.09 5.51 13.30 17 2002 352 1421 7.680 7.608 0.072 3.6 59.53 0.00 17.8 0 4.62 5.96 12.07 18 2002 337 1466 7.680 7.608 0.072 3.6 61.51 0.00 18.4 0 4.78 2.84 12.48 19 2002 362 1200 7.676 7.608 0.068 3.6 61.92 0.00 18.5 2 4.81 2.19 12.56 20

2003 325 1600 7.795 7.608 0.187 3.5 59.58 0.00 18.3 3 4.76 4.90 12.43 1 2003 25 1538 7.789 7.608 0.181 3.5 60.48 0.00 18.60 4.83 3.47 12.62 2 2003 12 1631 7.745 7.608 0.137 3.5 59.29 0.00 18.24 4.74 5.37 12.37 3 2003 15 1631 7.735 7.608 0.127 3.5 59.10 0.00 18.18 4.72 5.66 12.33 4 2003 16 1581 7.730 7.608 0.122 3.5 60.89 0.00 18.73 4.87 2.81 12.70 5 2003 37 1645 7.726 7.608 0.117 3.2 58.05 0.00 19.53 5.07 4.10 13.25 6 2003 289 1667 7.721 7.608 0.113 3.8 61.79 0.00 17.5 1 4.55 4.28 11.87 7 2003 343 1666 7.711 7.608 0.103 3.6 60.35 0.00 18.0 5 4.69 4.68 12.24 8 2003 341 1631 7.704 7.608 0.096 3.6 60.88 0.00 18.2 1 4.73 3.83 12.35 9 2003 360 1631 7.692 7.608 0.084 3.6 61.79 0.00 18.4 8 4.80 2.40 12.53 10 2003 63 1667 7.689 7.608 0.081 3.1 57.44 0.00 19.95 5.18 3.90 13.53 11 2003 103 1667 7.687 7.608 0.079 3.0 54.26 0.00 19.4 7 5.06 7.99 13.21 12 2003 279 1421 7.684 7.608 0.075 3.8 60.42 0.00 17.1 2 4.45 6.41 11.61 13 2003 312 1661 7.679 7.608 0.071 3.5 60.53 0.00 18.6 2 4.84 3.39 12.63 14 2003 149 1235 7.670 7.608 0.062 3.6 59.34 0.00 17.7 4 4.61 6.27 12.03 15 2003 70 1466 7.669 7.608 0.061 3.1 55.83 0.00 19.39 5.04 6.59 13.15 16 2003 45 1466 7.668 7.608 0.060 3.2 58.33 0.00 19.62 5.10 3.64 13.31 17 2003 361 1235 7.667 7.608 0.059 3.6 61.80 0.00 18.4 8 4.80 2.38 12.53 18 2003 84 1631 7.665 7.608 0.057 3.1 55.56 0.00 19.29 5.01 7.05 13.09 19 2003 26 1667 7.664 7.608 0.056 3.5 61.15 0.00 18.81 4.89 2.40 12.76 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 356 1581 7.871 7.608 0.263 3.6 59.85 0.00 17.9 0 4.65 5.46 12.14 1 2002 45 1631 7.815 7.608 0.207 3.2 56.75 0.00 19.09 4.96 6.25 12.95 2 2003 325 1600 7.795 7.608 0.187 3.5 59.58 0.00 18.3 3 4.76 4.90 12.43 3 2003 25 1538 7.789 7.608 0.181 3.5 60.48 0.00 18.60 4.83 3.47 12.62 4 2002 2 1631 7.759 7.608 0.151 3.5 59.46 0.00 18.29 4.75 5.09 12.40 5 2003 12 1631 7.745 7.608 0.137 3.5 59.29 0.00 18.24 4.74 5.37 12.37 6 2001 365 1645 7.744 7.608 0.135 3.6 60.24 0.00 18.0 1 4.68 4.85 12.22 7 2003 15 1631 7.735 7.608 0.127 3.5 59.10 0.00 18.18 4.72 5.66 12.33 8 2002 361 1631 7.732 7.608 0.124 3.6 61.84 0.00 18.4 9 4.80 2.32 12.54 9 2002 328 1466 7.730 7.608 0.122 3.5 59.17 0.00 18.2 0 4.73 5.55 12.34 10 2002 5 1582 7.730 7.608 0.122 3.5 59.42 0.00 18.28 4.75 5.16 12.40 11 2003 16 1581 7.730 7.608 0.122 3.5 60.89 0.00 18.73 4.87 2.81 12.70 12 2002 334 1661 7.726 7.608 0.118 3.5 57.95 0.00 17.8 2 4.63 7.51 12.09 13 2002 65 1639 7.726 7.608 0.118 3.1 56.73 0.00 19.70 5.12 5.10 13.36 14 2003 37 1645 7.726 7.608 0.117 3.2 58.05 0.00 19.53 5.07 4.10 13.25 15 2002 17 1421 7.724 7.608 0.116 3.5 59.05 0.00 18.16 4.72 5.75 12.32 16 2001 109 1581 7.723 7.608 0.115 3.0 55.76 0.00 20.0 1 5.20 5.45 13.57 17 2002 199 1591 7.722 7.608 0.114 3.7 60.60 0.00 17.6 3 4.58 5.22 11.96 18 2003 289 1667 7.721 7.608 0.113 3.8 61.79 0.00 17.5 1 4.55 4.28 11.87 19 2001 270 1666 7.719 7.608 0.111 4.0 63.73 0.00 17.1 5 4.46 3.02 11.63 20 2003 343 1666 7.711 7.608 0.103 3.6 60.35 0.00 18.0 5 4.69 4.68 12.24 21 2002 167 1631 7.710 7.608 0.102 3.7 59.47 0.00 17.3 0 4.49 7.00 11.73 22 2001 33 1667 7.709 7.608 0.101 3.2 56.89 0.00 19.14 4.97 6.01 12.98 23 2002 155 1661 7.708 7.608 0.100 3.7 61.51 0.00 17.9 0 4.65 3.80 12.14 24 2001 269 1667 7.708 7.608 0.099 4.0 63.42 0.00 17.0 7 4.43 3.49 11.58 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 189 1697 7.755 7.58 0.175 3.7 61.27 0 17.83 4. 63 4.18 12.09 1 2001 360 1669 7.751 7.58 0.171 3.5 58.41 0 17.97 4. 67 6.77 12.19 2 2001 74 1697 7.714 7.58 0.134 3.1 54.93 0 19.08 4.9 6 8.1 12.94 3 2001 7 1696 7.711 7.58 0.131 3.4 57.76 0 18.29 4.75 6.8 12.4 4 2001 35 1697 7.705 7.58 0.125 3.1 56.26 0 19.54 5.0 8 5.87 13.25 5 2001 67 1668 7.704 7.58 0.124 3.1 57.41 0 19.94 5.1 8 3.96 13.52 6 2001 22 1668 7.691 7.58 0.111 3.4 58.18 0 18.42 4.7 9 6.12 12.49 7 2001 26 1668 7.69 7.58 0.11 3.4 57.44 0 18.19 4.72 7.31 12.33 8 2001 269 1668 7.687 7.58 0.107 4 62.26 0 16.76 4.35 5.27 11.36 9 2001 17 1691 7.674 7.58 0.094 3.4 58.76 0 18.61 4.8 3 5.18 12.62 10 2001 270 1685 7.665 7.58 0.085 4 64.13 0 17.26 4.48 2.42 11.71 11 2001 147 1668 7.659 7.58 0.079 3.3 59.35 0 19.36 5. 03 3.13 13.13 12 2001 353 1668 7.657 7.58 0.077 3.5 60.6 0 18.64 4.8 4 3.28 12.64 13 2001 192 1697 7.657 7.58 0.077 3.7 60.32 0 17.55 4. 56 5.66 11.9 14 2001 300 1696 7.649 7.58 0.069 3.7 60.59 0 17.63 4. 58 5.24 11.96 15 2001 86 1696 7.642 7.58 0.062 3.1 57.94 0 20.12 5.2 3 3.07 13.65 16 2001 105 1668 7.64 7.58 0.06 3 55.73 0 20 5.19 5.51 13.56 17 2001 191 1696 7.638 7.58 0.058 3.7 61.79 0 17.98 4. 67 3.37 12.19 18 2001 107 1668 7.635 7.58 0.055 3 56.15 0 20.15 5.23 4.8 13.67 19 2001 5 1696 7.634 7.58 0.055 3.4 59.08 0 18.71 4.86 4.67 12.69 20

2002 291 1696 7.842 7.58 0.262 3.7 61.51 0 17.9 4.6 5 3.81 12.14 1 2002 154 1697 7.713 7.58 0.133 3.7 61.29 0 17.83 4. 63 4.15 12.09 2 2002 350 1690 7.694 7.58 0.114 3.5 59.11 0 18.18 4. 72 5.65 12.33 3 2002 14 1685 7.684 7.58 0.104 3.4 58.38 0 18.49 4.8 5.8 12.54 4 2002 201 1685 7.681 7.58 0.101 3.7 60.82 0 17.7 4.6 4.88 12 5 2002 363 1668 7.658 7.58 0.078 3.5 59.42 0 18.28 4. 75 5.15 12.4 6 2002 219 1685 7.658 7.58 0.078 4.1 62.72 0 16.47 4. 28 5.37 11.17 7 2002 60 1669 7.657 7.58 0.077 3.1 56.48 0 19.62 5.1 5.5 13.3 8 2002 49 1696 7.656 7.58 0.076 3.1 57.57 0 19.99 5.1 9 3.69 13.56 9 2002 338 1697 7.655 7.58 0.075 3.5 59.61 0 18.34 4. 76 4.85 12.44 10 2002 36 1691 7.649 7.58 0.069 3.1 57.22 0 19.87 5.1 6 4.27 13.48 11 2002 17 1685 7.647 7.58 0.067 3.4 58.47 0 18.51 4.8 1 5.65 12.56 12 2002 9 1674 7.647 7.58 0.067 3.4 58.07 0 18.39 4.78 6.3 12.47 13 2002 198 1697 7.643 7.58 0.063 3.7 60.39 0 17.57 4. 56 5.56 11.92 14 2002 182 1697 7.639 7.58 0.059 3.7 59.14 0 17.21 4. 47 7.5 11.67 15 2002 329 1697 7.632 7.58 0.052 3.5 60.85 0 18.72 4. 86 2.87 12.69 16 2002 332 1696 7.63 7.58 0.05 3.5 60.27 0 18.54 4.82 3.8 12.57 17 2002 254 1685 7.629 7.58 0.049 4 63.3 0 17.04 4.43 3.68 11.55 18 2002 361 1685 7.623 7.58 0.043 3.5 59.78 0 18.39 4. 78 4.58 12.47 19 2002 117 1668 7.622 7.58 0.042 3 56.98 0 20.45 5.31 3.39 13.87 20

2003 40 1685 7.743 7.58 0.163 3.1 57.1 0 19.83 5.15 4.47 13.45 1 2003 43 1696 7.739 7.58 0.159 3.1 54.92 0 19.07 4.9 5 8.11 12.94 2 2003 5 1691 7.737 7.58 0.157 3.4 59.57 0 18.86 4.9 3.87 12.79 3 2003 153 1668 7.68 7.58 0.1 3.7 61.26 0 17.82 4.63 4.2 12.09 4 2003 19 1669 7.672 7.58 0.092 3.4 57.31 0 18.14 4.7 1 7.53 12.31 5 2003 312 1697 7.667 7.58 0.088 3.5 58.55 0 18.01 4. 68 6.55 12.21 6 2003 296 1668 7.667 7.58 0.087 3.7 61.03 0 17.76 4. 61 4.56 12.04 7 2003 90 1675 7.666 7.58 0.086 3.1 58 0 20.14 5.23 2 .97 13.66 8 2003 91 1696 7.66 7.58 0.08 3.1 56.98 0 19.79 5.14 4.67 13.42 9 2003 12 1668 7.657 7.58 0.077 3.4 59.02 0 18.69 4.8 5 4.76 12.67 10 2003 104 1697 7.655 7.58 0.075 3 54.43 0 19.53 5.07 7.71 13.25 11 2003 336 1696 7.652 7.58 0.072 3.5 60.15 0 18.5 4.8 1 3.99 12.55 12 2003 360 1668 7.648 7.58 0.068 3.5 59.53 0 18.31 4. 76 4.99 12.42 13 2003 18 1696 7.643 7.58 0.063 3.4 60.58 0 19.18 4.9 8 2.24 13.01 14 2003 173 1697 7.642 7.58 0.062 3.7 60.16 0 17.5 4.5 5 5.92 11.87 15 2003 151 1668 7.641 7.58 0.061 3.3 56.13 0 18.31 4. 76 8.38 12.42 16 2003 343 1691 7.64 7.58 0.06 3.5 59.95 0 18.44 4.79 4.32 12.51 17 2003 15 1669 7.64 7.58 0.06 3.4 59.08 0 18.71 4.86 4.66 12.69 18 2003 6 1668 7.64 7.58 0.06 3.4 59.27 0 18.77 4.88 4 .35 12.73 19 2003 37 1669 7.637 7.58 0.057 3.1 55.29 0 19.2 4.99 7.51 13.02 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 2002 291 1696 7.842 7.580 0.262 3.7 61.51 0 17.9 4. 65 3.81 12.14 1 2001 189 1697 7.755 7.580 0.175 3.7 61.27 0 17.83 4 .63 4.18 12.09 2 2001 360 1669 7.751 7.580 0.171 3.5 58.41 0 17.97 4 .67 6.77 12.19 3 2003 40 1685 7.743 7.580 0.163 3.1 57.1 0 19.83 5.1 5 4.47 13.45 4 2003 43 1696 7.739 7.580 0.159 3.1 54.92 0 19.07 4. 95 8.11 12.94 5 2003 5 1691 7.737 7.580 0.157 3.4 59.57 0 18.86 4.9 3.87 12.79 6 2001 74 1697 7.714 7.580 0.134 3.1 54.93 0 19.08 4. 96 8.1 12.94 7 2002 154 1697 7.713 7.580 0.133 3.7 61.29 0 17.83 4 .63 4.15 12.09 8 2001 7 1696 7.711 7.580 0.131 3.4 57.76 0 18.29 4.7 5 6.8 12.4 9 2001 35 1697 7.705 7.580 0.125 3.1 56.26 0 19.54 5. 08 5.87 13.25 10 2001 67 1668 7.704 7.580 0.124 3.1 57.41 0 19.94 5. 18 3.96 13.52 11 2002 350 1690 7.694 7.580 0.114 3.5 59.11 0 18.18 4 .72 5.65 12.33 12 2001 22 1668 7.691 7.580 0.111 3.4 58.18 0 18.42 4. 79 6.12 12.49 13 2001 26 1668 7.690 7.580 0.110 3.4 57.44 0 18.19 4. 72 7.31 12.33 14 2001 269 1668 7.687 7.580 0.107 4.0 62.26 0 16.76 4 .35 5.27 11.36 15 2002 14 1685 7.684 7.580 0.104 3.4 58.38 0 18.49 4. 8 5.8 12.54 16 2002 201 1685 7.681 7.580 0.101 3.7 60.82 0 17.7 4. 6 4.88 12 17 2003 153 1668 7.680 7.580 0.100 3.7 61.26 0 17.82 4 .63 4.2 12.09 18 2001 17 1691 7.674 7.580 0.094 3.4 58.76 0 18.61 4. 83 5.18 12.62 19 2003 19 1669 7.672 7.580 0.092 3.4 57.31 0 18.14 4. 71 7.53 12.31 20 2003 312 1697 7.667 7.580 0.088 3.5 58.55 0 18.01 4 .68 6.55 12.21 21 2003 296 1668 7.667 7.580 0.087 3.7 61.03 0 17.76 4 .61 4.56 12.04 22 2003 90 1675 7.666 7.580 0.086 3.1 58 0 20.14 5.23 2.97 13.66 23 2001 270 1685 7.665 7.580 0.085 4.0 64.13 0 17.26 4 .48 2.42 11.71 24 2003 91 1696 7.660 7.580 0.080 3.1 56.98 0 19.79 5. 14 4.67 13.42 25