Appendix K 

Modeling Results 
Modeling Results i 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

(This page intentionally left blank)
Modeling Results ii 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Table Of Contents 

Table Of Contents ........................................................................................................................... ii 

List Of Figures ................................................................................................................................ ii 

List Of Tables ................................................................................................................................ iii 

Introduction ..................................................................................................................................... 1 

List Of Figures 

Figure 1: North Carolina PM Nonattainment Area Domain Mask ................................................ 3 

Figure 2: Zoomed View of the North Carolina PM Nonattainment Area Mask ........................... 3 

Figure 3: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

January 5th ............................................................................................................................... 4 

Figure 4: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

January 6th ............................................................................................................................... 5 

Figure 5: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

February 25th ........................................................................................................................... 6 

Figure 6: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

March 6th ................................................................................................................................. 7 

Figure 7: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

May 26th .................................................................................................................................. 8 

Figure 8: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

June 4th .................................................................................................................................... 9 

Figure 9: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

June 10th ................................................................................................................................ 10 

Figure 10: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

June 13th ................................................................................................................................ 11 

Figure 11: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 1st ................................................................................................................................... 12 

Figure 12: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 2nd .................................................................................................................................. 13 

Figure 13: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 3rd ................................................................................................................................... 14 

Figure 14: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 8th ................................................................................................................................... 15 

Figure 15: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 9th ................................................................................................................................... 16 

Figure 16: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 16th ................................................................................................................................. 17 

Figure 17: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 17th ................................................................................................................................. 18 

Figure 18: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

July 18th ................................................................................................................................. 19 
Modeling Results iii 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 19: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 2nd ............................................................................................................................. 20 

Figure 20: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 3rd .............................................................................................................................. 21 

Figure 21: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 11th ............................................................................................................................ 22 

Figure 22: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 12th ............................................................................................................................ 23 

Figure 23: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 22nd ........................................................................................................................... 24

Figure 24: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

August 23rd ............................................................................................................................ 25 

Figure 25: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

September 17th ...................................................................................................................... 26 

Figure 26: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

September 18th ...................................................................................................................... 27 

Figure 27: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

November 21st ....................................................................................................................... 28 

Figure 28: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

November 25th ....................................................................................................................... 29 

Figure 29: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

December 7th ......................................................................................................................... 30 

Figure 30: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter for 

December 31st ....................................................................................................................... 31 

List Of Tables 

Table 1: Days selected for model evaluation and the observed value at each of the monitoring 

sites in the Hickory and Triad PM Nonattainment areas. Gray cells indicate no monitoring 

data was available for that day either due to the sampling frequency or the site being off line

................................................................................................................................................. 2 

Table3.1: Cell Count Across the PM Nonattainment Area Domain Mask For January 5th ........... 4 

Table 3.2: Table of Observed Values from January 5, 2002 ......................................................... 4 

Table 4.1: Cell Count Across the PM Nonattainment Area Domain Mask For January 6th .......... 5 

Table 4.2: Table of Observed Values from January 6, 2002 ......................................................... 5 

Table 5.1: Cell Count Across the PM Nonattainment Area Domain Mask For February 25th ...... 6 

Table 5.2: Table of Observed Values from February 25, 2002 ..................................................... 6 

Table 6.1: Cell Count Across the PM Nonattainment Area Domain Mask For March 6th ............ 7 

Table 6.2: Table of Observed Values from March 6, 2002 ........................................................... 7 

Table 7.1: Cell Count Across the PM Nonattainment Area Domain Mask For May 26th ............. 8 

Table 7.2: Table of Observed Values from May 26, 2002 ............................................................ 8 

Table 8.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 4th ............... 9 

Table 8.2: Table of Observed Values from June 4, 2002 .............................................................. 9 

Table 9.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 10th ........... 10 

Table 9.2: Table of Observed Values from June 10, 2002 .......................................................... 10 
Modeling Results iv 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Table 10.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 13th ......... 11 

Table 10.2: Table of Observed Values from June 13, 2002 ........................................................ 11 

Table 11.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 1st ............ 12 

Table 11.2: Table of Observed Values from July 1, 2002 ........................................................... 12 

Table 12.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 2nd ........... 13 

Table 12.2: Table of Observed Values from July 2, 2002 ........................................................... 13 

Table 13.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 3rd ........... 14 

Table 13.2: Table of Observed Values from July 3, 2002 ........................................................... 14 

Table 14.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 8th ........... 15 

Table 14.2: Table of Observed Values from July 8, 2002 ........................................................... 15 

Table 15.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 8th ........... 16 

Table 15.2: Table of Observed Values from July 8, 2002 ........................................................... 16 

Table 16.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 16th ......... 17 

Table 16.2: Table of Observed Values from July 16, 2002 ......................................................... 17 

Table 17.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 17th .......... 18 

Table 17.2: Table of Observed Values from July 17, 2002 .......................................................... 18 

Table 18.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 18th ......... 19 

Table 18.2: Table of Observed Values from July 18, 2002 ......................................................... 19 

Table 19.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 2nd ...... 20 

Table 19.2: Table of Observed Values from August 2, 2002 ...................................................... 20 

Table 20.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 3rd ...... 21 

Table 20.2: Table of Observed Values from August 3, 2002 ...................................................... 21 

Table 21.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 11th ..... 22 

Table 21.2: Table of Observed Values from August 11, 2002 .................................................... 22 

Table 22.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 12th ..... 23 

Table 22.2: Table of Observed Values from August 12, 2002 .................................................... 23 

Table 23.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 22nd .... 24 

Table 23.2: Table of Observed Values from August 22, 2002 .................................................... 24 

Table 24.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 23rd .... 25 

Table 24.2: Table of Observed Values from August 23, 2002 .................................................... 25 

Table 25.1: Cell Count Across the PM Nonattainment Area Domain Mask For September 17th 26 

Table 25.2: Table of Observed Values from September 17, 2002 ............................................... 26 

Table 26.1: Cell Count Across the PM Nonattainment Area Domain Mask For September 18th 27 

Table 26.2: Table of Observed Values from September 18, 2002 ............................................... 27 

Table 27.1: Cell Count Across the PM Nonattainment Area Domain Mask For November 21st 28 

Table 27.2: Table of Observed Values from December 31, 2002 ............................................... 28 

Table 28.1: Cell Count Across the PM Nonattainment Area Domain Mask For November 25th 29 

Table 28.2: Table of Observed Values from November 25, 2002 ............................................... 29 

Table 29.1: Cell Count Across the PM Nonattainment Area Domain Mask For December 7th .. 30 

Table 29.2: Table of Observed Values from December 7, 2002 ................................................. 30 

Table 30.1: Cell Count Across PM Nonattainment Area Domain Mask For December 31st ...... 31 

Table 30.2: Table of Observed Values from December 31, 2002 ............................................... 31 
Modeling Results 1 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Introduction 

The air quality modeling results for the 12-kilometer (km) grid modeling domain are presented in 

this appendix for the attainment demonstration for both the Hickory and the Greensboro-WinstonSalem-High Point (referred to as the Triad area) annual fine particulate matter (PM25) 

nonattainment areas. These modeling results are displayed as 24-hour average plots of 

reconstructed PM25 for both the 2002 baseline year and the 2009 attainment year. 

A subset of days from 2002 is presented in this appendix, though all days from 2002 are used in 

developing the relative reduction factor (RRF) and subsequently the future design value (DVF). For 

model performance evaluation, the USEPA’s “Guidance on the Use of Models and Other Analysis 

for Demonstrating Attainment Goals for Ozone, PM25, and Regional Haze” suggests looking at 

days with an daily average PM25 concentration greater than 65 micrograms per meter cubed 

(μg/m^3). However, neither the Hickory nor the Triad PM25 nonattainment area has any observed 

values greater than or equal to 65 μg/m^3. This lead the North Carolina Division of Air Quality 

chose to use a cut off of 30 μg/m^3 at any of the monitoring sites in either nonattainment area, as an 

initial method to select days for examination in the model performance evaluation and in the results 

section. 

To ensure at least four days from each quarter were presented, PM25 values form each quarter were 

ranked, and the four days with the highest average daily values in each quarter were also chosen. 

This selection process identified 28 days for presentation in this appendix, and examination in the 

model performance evaluation (Appendix J). The selected days are presented in Table 1 below. 

Each of the following 28 pages presents a single modeling day. The first or top plot on each page is 

the daily average PM25 plot for the 2002 baseline year. The second or bottom plot is the daily 

average PM25 plot for the 2009 attainment year. The comparison of the of the attainment year plot 

to the baseline year plot determines the relative reduction for each of the RRF days in this 

attainment modeling exercise. 

A table is presented immediately below the plots to further detail the change in number of grid cells 

between ranges approximating the AQI color codes for the daily PM25 standard from 2002 to 2009. 

The grid cell counts are only calculated for a domain mask that represents the Hickory and Triad 

nonattainment areas. A statewide view of this domain mask is presented in Figure 1, with a closer 

view presented in Figure 2. 

Finally, a table is included at the bottom of each page that lists the observed monitor values from 

that particular day. Gray cells indicate days in which the sites had no observed value. Observations 

can be missing due to the sampling frequency of the site (every day versus every third day) or the 

monitor was off line for repairs. 
Modeling Results 2 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Table 1: Days selected for model evaluation and the observed value at each of the monitoring 

sites in the Hickory and Triad PM Nonattainment areas. Gray cells indicate no monitoring 

data was available for that day either due to the sampling frequency or the site being off line 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

01/05/02 5 Q1 22.3 28.5 25.5

01/06/02 6 Q1 23.9

02/25/02 56 Q1 24.5 21.4 20.3 18.8

03/06/02 65 Q1 24.8 22.8 15.6

05/26/02 146 Q2 22.6 25.3

06/04/02 155 Q2 29.0 26.4 26.0

06/10/02 161 Q2 27.5 22.4 23.5

06/13/02 164 Q2 23.1 26.9 25.8

07/01/02 182 Q3 36.9 33.5 31.1 32.9

07/02/02 183 Q3 37.7

07/03/02 184 Q3 30.8

07/08/02 189 Q3 31.1

07/09/02 190 Q3 34.9

07/16/02 197 Q3 33.5 33.1 34.8

07/17/02 198 Q3 41.8

07/18/02 199 Q3 41.8

08/02/02 214 Q3 31.4

08/03/02 215 Q3 30.0 19.5 17.4

08/11/02 223 Q3 33.4

08/12/02 224 Q3 33.3 40.7 36.9

08/22/02 234 Q3 31.1

08/23/02 235 Q3 33.2

09/17/02 260 Q3 30.6 27.6 21.2

09/18/02 261 Q3 30.5

11/21/02 325 Q4 26.6

11/25/02 329 Q4 19.3 25.9 19.9

12/07/02 341 Q4 29.2 43.7 49.2

12/31/02 365 Q4 28.9 18.9 20.5
Modeling Results 3 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 1: North Carolina PM Nonattainment Area Domain Mask 

Figure 2: Zoomed View of the North Carolina PM Nonattainment Area Mask 
Modeling Results 4 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 3: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for January 5th 

Table3.1: Cell Count Across the PM Nonattainment Area Domain Mask For January 5th 

Day 365 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 5 9

30.0 - 44.9 μg/m^3 41 34

45.0 - 60.0 μg/m^3 4 7

Table 3.2: Table of Observed Values from January 5, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

01/06/02 6 Q1 23.9
Modeling Results 5 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 4: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for January 6th 

Table 4.1: Cell Count Across the PM Nonattainment Area Domain Mask For January 6th 

Day 6 2002 2009

00.0 - 14.9 μg/m^3 34 46

15.0 - 29.9 μg/m^3 16 4

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 4.2: Table of Observed Values from January 6, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

01/06/02 6 Q1 23.9
Modeling Results 6 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 5: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for February 25th 

Table 5.1: Cell Count Across the PM Nonattainment Area Domain Mask For February 25th 

Day 56 2002 2009

00.0 - 14.9 μg/m^3 0 17

15.0 - 29.9 μg/m^3 50 33

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 5.2: Table of Observed Values from February 25, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

02/25/02 56 Q1 24.5 21.4 20.3 18.8
Modeling Results 7 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 6: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for March 6th 

Table 6.1: Cell Count Across the PM Nonattainment Area Domain Mask For March 6th 

Day 65 2002 2009

00.0 - 14.9 μg/m^3 0 13

15.0 - 29.9 μg/m^3 50 37

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 6.2: Table of Observed Values from March 6, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

03/06/02 65 Q1 24.8 22.8 15.6
Modeling Results 8 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 7: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for May 26th 

Table 7.1: Cell Count Across the PM Nonattainment Area Domain Mask For May 26th 

Day 146 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 50 50

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 7.2: Table of Observed Values from May 26, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

05/26/02 146 Q2 22.6 25.3
Modeling Results 9 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 8: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for June 4th 

Table 8.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 4th 

Day 155 2002 2009

00.0 - 14.9 μg/m^3 22 49

15.0 - 29.9 μg/m^3 28 1

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 8.2: Table of Observed Values from June 4, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

06/04/02 155 Q2 29.0 26.4 26.0
Modeling Results 10 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 9: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for June 10th 

Table 9.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 10th 

Day 161 2002 2009

00.0 - 14.9 μg/m^3 42 50

15.0 - 29.9 μg/m^3 8 0

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 9.2: Table of Observed Values from June 10, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

06/10/02 161 Q2 27.5 22.4 23.5
Modeling Results 11 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 10: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for June 13th 

Table 10.1: Cell Count Across the PM Nonattainment Area Domain Mask For June 13th 

 

day 164 2002 2009

00.0 - 14.9 μg/m^3 1 16

15.0 - 29.9 μg/m^3 49 34

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 10.2: Table of Observed Values from June 13, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

06/13/02 164 Q2 23.1 26.9 25.8
Modeling Results 12 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 11: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 1st 

Table 11.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 1st 

 

Day 182 2002 2009

00.0 - 14.9 μg/m^3 20 37

15.0 - 29.9 μg/m^3 30 13

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 11.2: Table of Observed Values from July 1, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/01/02 182 Q3 36.9 33.5 31.1 32.9
Modeling Results 13 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 12: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 2nd 

Table 12.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 2nd 

Day 183 2002 2009

00.0 - 14.9 μg/m^3 25 35

15.0 - 29.9 μg/m^3 24 15

30.0 - 44.9 μg/m^3 1 0

45.0 - 60.0 μg/m^3 0 0

Table 12.2: Table of Observed Values from July 2, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/02/02 183 Q3 37.7
Modeling Results 14 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 13: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 3rd 

Table 13.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 3rd 

Day 184 2002 2009

00.0 - 14.9 μg/m^3 13 50

15.0 - 29.9 μg/m^3 37 0

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 13.2: Table of Observed Values from July 3, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/03/02 184 Q3 30.8
Modeling Results 15 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 14: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 8th 

Table 14.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 8th

Day 189 2002 2009

00.0 - 14.9 μg/m^3 7 42

15.0 - 29.9 μg/m^3 43 18

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 14.2: Table of Observed Values from July 8, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/08/02 189 Q3 31.1
Modeling Results 16 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 15: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 9th 

Table 15.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 8th 

Day 190 2002 2009

00.0 - 14.9 μg/m^3 3 20

15.0 - 29.9 μg/m^3 47 30

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 15.2: Table of Observed Values from July 8, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/09/02 190 Q3 34.9
Modeling Results 17 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 16: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 16th 

Table 16.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 16th 

Day 197 2002 2009

00.0 - 14.9 μg/m^3 0 16

15.0 - 29.9 μg/m^3 50 34

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 16.2: Table of Observed Values from July 16, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/16/02 197 Q3 33.5 33.1 34.8
Modeling Results 18 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 17: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 17th 

Table 17.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 17th 

Day 198 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 37 50

30.0 - 44.9 μg/m^3 13 0

45.0 - 60.0 μg/m^3 0 0

Table 17.2: Table of Observed Values from July 17, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/17/02 198 Q3 41.8
Modeling Results 19 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 18: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for July 18th 

Table 18.1: Cell Count Across the PM Nonattainment Area Domain Mask For July 18th 

Day 199 2002 2009

00.0 - 14.9 μg/m^3 0 14

15.0 - 29.9 μg/m^3 50 36

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 18.2: Table of Observed Values from July 18, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

07/18/02 199 Q3 41.8
Modeling Results 20 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 19: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 2nd 

Table 19.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 2nd 

Day 214 2002 2009

00.0 - 14.9 μg/m^3 0 32

15.0 - 29.9 μg/m^3 50 18

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 19.2: Table of Observed Values from August 2, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/02/02 214 Q3 31.4
Modeling Results 21 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 20: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 3rd 

Table 20.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 3rd 

Day 215 2002 2009

00.0 - 14.9 μg/m^3 30 42

15.0 - 29.9 μg/m^3 20 8

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 20.2: Table of Observed Values from August 3, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/03/02 215 Q3 30.0 19.5 17.4
Modeling Results 22 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 21: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 11th 

Table 21.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 11th 

Day 223 2002 2009

00.0 - 14.9 μg/m^3 0 4

15.0 - 29.9 μg/m^3 50 46

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 21.2: Table of Observed Values from August 11, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/11/02 223 Q3 33.4
Modeling Results 23 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 22: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 12th 

Table 22.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 12th 

Day 224 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 31 48

30.0 - 44.9 μg/m^3 19 2

45.0 - 60.0 μg/m^3 0 0

Table 22.2: Table of Observed Values from August 12, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/12/02 224 Q3 33.3 40.7 36.9
Modeling Results 24 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 23: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 22nd 

Table 23.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 22nd 

Day 234 2002 2009

00.0 - 14.9 μg/m^3 36 50

15.0 - 29.9 μg/m^3 14 0

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 23.2: Table of Observed Values from August 22, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/22/02 234 Q3 31.1
Modeling Results 25 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 24: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for August 23rd 

Table 24.1: Cell Count Across the PM Nonattainment Area Domain Mask For August 23rd 

Day 235 2002 2009

00.0 - 14.9 μg/m^3 7 40

15.0 - 29.9 μg/m^3 43 10

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 24.2: Table of Observed Values from August 23, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

08/23/02 235 Q3 33.2
Modeling Results 26 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 25: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for September 17th 

Table 25.1: Cell Count Across the PM Nonattainment Area Domain Mask For September 17th 

Day 260 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 41 50

30.0 - 44.9 μg/m^3 9 0

45.0 - 60.0 μg/m^3 0 0

Table 25.2: Table of Observed Values from September 17, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

09/17/02 260 Q3 30.6 27.6 21.2
Modeling Results 27 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 26: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for September 18th 

Table 26.1: Cell Count Across the PM Nonattainment Area Domain Mask For September 18th

Day 261 2002 2009

00.0 - 14.9 μg/m^3 1 8

15.0 - 29.9 μg/m^3 49 42

30.0 - 44.9 μg/m^3 0 0

45.0 - 60.0 μg/m^3 0 0

Table 26.2: Table of Observed Values from September 18, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

09/18/02 261 Q3 30.5
Modeling Results 28 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 27: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for November 21st 

Table 27.1: Cell Count Across the PM Nonattainment Area Domain Mask For November 21st 

Day 325 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 6 8

30.0 - 44.9 μg/m^3 44 42

45.0 - 60.0 μg/m^3 0 0

Table 27.2: Table of Observed Values from December 31, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

11/21/02 325 Q4 26.6
Modeling Results 29 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 28: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for November 25th 

Table 28.1: Cell Count Across the PM Nonattainment Area Domain Mask For November 25th 

Day 329 2002 2009

00.0 - 14.9 μg/m^3 0 1

15.0 - 29.9 μg/m^3 32 46

30.0 - 44.9 μg/m^3 18 3

45.0 - 60.0 μg/m^3 0 0

Table 28.2: Table of Observed Values from November 25, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

11/25/02 329 Q4 19.3 25.9 19.9
Modeling Results 30 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 29: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for December 7th 

Table 29.1: Cell Count Across the PM Nonattainment Area Domain Mask For December 7th 

Day 341 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 49 50

30.0 - 44.9 μg/m^3 1 0

45.0 - 60.0 μg/m^3 0 0

Table 29.2: Table of Observed Values from December 7, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

12/07/02 341 Q4 29.2 43.7 49.2
Modeling Results 31 

The Hickory And Greensboro-Winston Salem-High Point, NC PM2.5 Appendix K 

North Carolina Attainment Demonstration August 21, 2009 

Figure 30: 2002 (top) 2009 (bottom) Reconstructed 24-hour Average Fine Particulate Matter 

for December 31st 

Table 30.1: Cell Count Across PM Nonattainment Area Domain Mask For December 31st 

Day 365 2002 2009

00.0 - 14.9 μg/m^3 0 0

15.0 - 29.9 μg/m^3 5 9

30.0 - 44.9 μg/m^3 41 34

45.0 - 60.0 μg/m^3 4 7

Table 30.2: Table of Observed Values from December 31, 2002 

37-035-004 37-035-004 37-057-0002 37-081-0013

Date Jday Quarter Hickory (STN) Hickory (FRM) Lexington (FRM) Mendenhall (FRM)

12/31/02 365 Q4 28.9 18.9 20.5