Date Printed: 10/14/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/13/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .010 5.2 13.6 8.4 01:00 .010 5.5 14.9 9.4 02:00 .006 5.6 14.7 9.1 03:00 .005 5.4 14.4 8.9 04:00 .008 5.9 14.1 8.1 05:00 .004 6.1 14.5 8.4 06:00 .002 5.9 16.5 10.5 07:00 .004 5.9 17.5 11.6 08:00 .014 7.3 16.5 9.2 09:00 .026 7.9 16.5 8.6 10:00 .038 9.1 17.5 8.4 11:00 .048 10.4 20.0 9.6 12:00 .055 9.6 17.1 7.4 13:00 .057 9.7 18.0 8.2 14:00 .058 9.4 17.3 7.8 15:00 .058 B 9.6 17.7 8.0 16:00 .059 9.7 20.0 10.1 17:00 .054 10.7 19.9 9.2 18:00 .049 10.9 18.7 7.7 19:00 .045 11.6 19.6 7.9 20:00 .034 12.0 21.4 9.3 21:00 .027 12.6 20.7 8.0 22:00 .027 C 12.8 22.5 9.6 23:00 C 13.8 26.5 12.6 Average .030 8.8 17.9 9.0 Max .059 13.8 26.5 12.6 Max Hour 16:00 23:00 23:00 23:00 Min .002 5.2 13.6 7.4 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 13-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 13-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.33% Date Printed: 10/14/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/13/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .018 .1 8.0 8.1 .2 01:00 .017 .1 6.5 6.7 .2 02:00 .018 .1 5.7 5.8 .2 03:00 .018 .0 4.3 4.4 .2 04:00 .017 .0 4.6 4.7 .2 05:00 .013 .1 6.0 6.2 .2 06:00 .008 1.2 10.0 11.3 .2 07:00 .008 D 5.3 11.7 17.1 .3 08:00 D 3.0 6.7 9.7 .3 09:00 D 4.6 8.5 13.2 .3 10:00 D B B B D 11:00 .047 B B B D 12:00 .052 B B B D 13:00 .053 B B B D 14:00 .055 B B B D 15:00 .055 B B B .5 D 16:00 .058 C C C .4 17:00 .058 .1 C 5.9 C 6.0 C .4 18:00 .054 .0 8.0 8.1 .4 19:00 .052 .0 7.3 7.3 .3 C 20:00 .051 .0 5.8 5.8 C 21:00 .047 .0 6.4 6.4 .3 C 22:00 .043 C .1 6.5 6.6 .3 23:00 C .1 7.8 8.0 .2 Average .037 .8 7.0 7.9 .2 Max .058 5.3 11.7 17.1 .5 Max Hour 17:00 07:00 07:00 07:00 15:00 Min .008 .0 4.3 4.4 .2 Count 20 17 17 17 18 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 13-Oct-2026 15:46:00 16:11:00 69 70 -1.3% GPT-PS 13-Oct-2026 15:46:00 16:18:00 0.4 0.0 .49 GPTZ 13-Oct-2026 15:46:00 16:38:00 224.5 225 -.2% GPT-PREC 13-Oct-2026 15:46:00 17:08:00 156.3 155 .85% NO2 GPT-PREC 13-Oct-2026 15:46:00 17:08:00 68.3 70 -2.42% NO2 Precision NO2_Diff PRECDIFF 13-Oct-2026 17:15:00 17:15:05 68.2 68.306 -.09% NOx NOx_Auto NO-PREC 13-Oct-2026 15:46:00 16:11:00 68.9 70 -1.56% Ozone O3_Auto ZERO 13-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 13-Oct-2026 22:50:00 23:50:00 0.067 0.07 -3.02% SO2 SO2_Auto ZERO 13-Oct-2026 19:46:00 20:11:00 0.1 0.0 .2 SPAN 13-Oct-2026 19:46:00 20:36:00 87.5 90 -2.72% PREC 13-Oct-2026 19:46:00 21:01:00 38.7 40 -3.2% Date Printed: 10/14/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/13/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.9 11.2 6.2 01:00 5.0 12.0 7.1 02:00 5.2 12.0 6.8 03:00 5.4 12.8 7.5 04:00 5.7 13.2 7.5 05:00 6.1 13.5 7.4 06:00 6.3 15.5 9.2 07:00 6.6 16.1 9.4 08:00 7.4 15.7 8.0 09:00 8.4 18.3 9.3 10:00 9.4 19.3 9.3 11:00 10.0 19.1 8.3 12:00 10.1 19.5 8.5 13:00 10.0 19.6 8.6 14:00 9.4 19.5 9.1 15:00 9.1 19.5 9.5 16:00 9.7 18.5 8.0 17:00 10.7 20.7 9.3 18:00 11.5 19.4 7.3 19:00 12.1 20.6 8.1 20:00 12.2 21.9 9.3 21:00 12.7 23.2 10.1 22:00 13.0 21.8 8.5 23:00 12.9 22.7 9.5 Average 8.9 17.7 8.4 Max 13.0 23.2 10.1 Max Hour 22:00 21:00 21:00 Min 4.9 11.2 6.2 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.2% Date Printed: 10/14/2026 01:30 Daily Summary Report Site: Union Cross 10/13/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .014 736.9 61.4 54.7 01:00 .011 736.9 59.8 54.7 02:00 .012 736.9 59.1 54.2 03:00 .012 736.9 58.0 54.3 04:00 .010 737.1 57.2 54.3 05:00 .007 737.2 57.0 54.3 06:00 .005 737.6 57.1 54.9 07:00 .012 738.0 59.6 55.5 08:00 .015 738.4 63.7 56.7 09:00 .020 738.5 68.9 58.9 10:00 D 738.5 73.9 60.9 11:00 D 738.3 78.7 62.3 12:00 D 737.9 81.5 64.1 13:00 .061 737.3 83.0 64.1 14:00 .061 736.8 83.8 63.8 15:00 .059 736.7 83.3 63.5 16:00 .058 736.7 82.0 62.8 17:00 .053 736.9 79.0 61.9 18:00 .052 737.2 75.8 60.5 19:00 .050 737.5 20:00 .054 737.4 73.1 59.0 21:00 .048 737.6 71.6 59.0 22:00 .045 C 737.7 69.6 59.1 23:00 C 737.5 67.8 59.1 Average .032 737.4 69.7 58.8 Max .061 738.5 83.8 64.1 Max Hour 14:00 10:00 14:00 13:00 Min .005 736.7 57.0 54.2 Count 20 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 13-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 13-Oct-2026 22:50:00 23:50:00 0.069 0.07 .19% Flags T Out of Control A Arithmetic Error (math calculation error) t Out of Control (Partial) S Site Visit s Site Activity > Some Data Missing + Max Exceeded - Min Exceeded < Logger Invalid ? Suspect a Audit B Bad Status C Calibration c Ceiling Limit D Channel Disabled E Edited e Site Malfunction f Floor Limit H High-High Alarm h High Alarm I Invalidated By Edit J High Rate of Change Exceeded L Low-Low Alarm l Low Alarm M Maintenance m Marked Maint by edit O Overrange o Other P Power Failure p Precision Check Q Quality Assured R Rate of Change Exceeded V Dig Info#1 W Dig Info#2 X Dig Info#3 Y Dig Info#4 Z Dig Info#5 z Zero Adjusted F Boiler Offline j Low Rate of Change Exceeded