The Atlanta Eight-Hour Ozone Attainment Demonstration 

Appendix D 

Scatter Plots of Hourly 8-Hour Ozone, 

1-Hour Ozone, NO, and NO2 
Following are scatter plots for hourly 8-hour ozone, 1-hour ozone, NO, and NO2 across all 

monitors in GA. If a monitor has observed data for all of these species, scatter plots were grouped 

together for the monitor for each calendar month. If a monitor only has ozone measurements, its ozone 

scatter plots were grouped together for the modeling period. Each scatter plot shows observed 

concentrations of these species along with their concentrations predicted by CMAQ 12km in Georgia 

from May 24, 2002 to September 12, 2002. 

 
Figure 1 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 05-31 

1 
Figure 2 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 05-31 

2 
Figure 3 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 05-31 

3 
Figure 4 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 05-31 

4 
Figure 5 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 05-31 

5 
Figure 6 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 06-01 ~ 06-30 

6 
Figure 7 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 06-01 ~ 06-30 

7 
Figure 8 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 06-01 ~ 06-30 

8 
Figure 9 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 06-01 ~ 06-30 

9 
Figure 10 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 06-01 ~ 06-30 

10 
Figure 11 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 07-31 

11 
Figure 12 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 07-31 

12 
Figure 13 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 07-31 

13 
Figure 14 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 07-31 

14 
Figure 15 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 07-31 

15 
Figure 16 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 08-01 ~ 08-31 

16 
Figure 17 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 08-01 ~ 08-31 

17 
Figure 18 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 08-01 ~ 08-31 

18 
Figure 19 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 08-01 ~ 08-31 

19 
Figure 20 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 08-01 ~ 08-31 

20 
Figure 21 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01 ~ 09-12 

21 
Figure 22 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01 ~ 09-12 

22 
Figure 23 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01 ~ 09-12 

23 
Figure 24 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01 ~ 09-12 

24 
Figure 25 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01 ~ 09-12 

25 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 26 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Murray-0003 

26 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 27 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Murray-0003 

27 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 28 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Murray-0003 

28 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 29 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Douglas-0004 

29 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 30 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Douglas-0004 

30 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 31 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Douglas-0004 

31 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 32 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Coweta-0002 

32 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 33 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Coweta-0002 

33 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 34 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Coweta-0002 

34 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 35 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Cobb-0003 

35 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 36 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Cobb-0003 

36 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 37 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Cobb-0003 

37 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 38 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Cherokee-0001 

38 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 39 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Cherokee-0001 

39 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 40 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Cherokee-0001 

40 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 41 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Fayette-0001 

41 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 42 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Fayette-0001 

42 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 43 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Fayette-0001 

43 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 44 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Fulton-0055 

44 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 45 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Fulton-0055 

45 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 46 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Fulton-0055 

46 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 47 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Henry-0002 

47 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 48 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Henry-0002 

48 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 49 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Henry-0002 

49 
Period 8-hour ozone 1-hour ozone 

05-24 

~ 

05-31 

06-01 

~ 

06-30 

Figure 50 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 05-24 ~ 06-30 at GA-Bibb-0012 

50 
Period 8-hour ozone 1-hour ozone 

07-01 

~ 

07-31 

08-01 

~ 

08-31 

Figure 51 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 07-01 ~ 08-31 at GA-Bibb-0012 

51 
Period 8-hour ozone 1-hour ozone 

09-01 

~ 

09-12 

Figure 52 Observation-prediction scatter plots for 8-hour ozone, 1-hour ozone, NO, and NO2 

concentrations for 09-01_09-12 at GA-Bibb-0012 

52