Date Printed: 10/6/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/5/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 D 5.0 8.9 3.8 01:00 D 5.0 8.4 3.4 02:00 D 4.9 8.4 3.5 03:00 D 4.9 8.5 3.6 04:00 D 4.8 9.3 4.5 05:00 D 4.8 9.6 4.7 06:00 D 5.0 11.0 5.9 07:00 D 7.0 51.1 44.1 08:00 B 4.7 9.8 5.1 09:00 D 4.5 9.5 4.9 10:00 D 4.7 14.1 9.3 11:00 .033 D 4.5 15.4 10.8 12:00 .038 4.0 13.6 9.5 13:00 .039 4.2 12.8 8.6 14:00 .040 4.3 13.9 9.6 15:00 .041 4.7 13.7 9.0 16:00 .042 4.8 15.8 10.9 17:00 .036 5.0 14.8 9.8 18:00 .018 4.7 13.2 8.5 19:00 .017 5.6 24.4 18.7 20:00 .008 5.6 14.0 8.3 21:00 .007 5.6 13.1 7.5 22:00 .005 C 5.8 11.7 5.9 23:00 C 6.1 11.5 5.4 Average .027 5.0 14.0 8.9 Max .042 7.0 51.1 44.1 Max Hour 16:00 07:00 07:00 07:00 Min .005 4.0 8.4 3.4 Count 12 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 05-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 05-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.34% Date Printed: 10/6/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/5/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .002 3.1 9.6 12.7 .2 01:00 .002 2.9 7.8 10.7 .2 02:00 .002 1.9 6.8 8.8 .2 03:00 .002 2.3 5.5 7.9 .2 04:00 .002 4.3 4.4 8.8 .2 05:00 .002 9.1 3.4 12.6 .3 06:00 D 12.4 2.9 15.4 .4 07:00 D 16.7 3.9 20.6 .4 08:00 D 7.4 5.8 13.3 .3 09:00 .012 2.6 4.5 7.1 .2 10:00 .024 .8 2.5 3.4 .3 11:00 .034 .3 1.6 1.9 .4 12:00 .036 .2 1.4 1.7 .5 13:00 .039 .2 1.5 1.7 .5 14:00 .044 .1 1.5 1.7 .5 15:00 .046 .1 C 1.7 C 1.9 C .5 16:00 .046 C C C .5 17:00 .040 .1 C 4.8 C 5.0 C .4 18:00 .027 .1 11.6 11.7 .3 19:00 .014 .5 17.9 18.5 .2 C 20:00 .005 3.3 21.7 25.0 C 21:00 .003 4.0 19.4 23.4 .3 C 22:00 .004 C 3.5 16.7 20.2 .3 23:00 C .1 4.5 4.7 .2 Average .019 3.3 7.0 10.3 .3 Max .046 16.7 21.7 25.0 .5 Max Hour 16:00 07:00 20:00 20:00 16:00 Min .002 .1 1.4 1.7 .2 Count 20 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 05-Oct-2026 15:46:00 16:11:00 69.1 70 -1.15% GPT-PS 05-Oct-2026 15:46:00 16:18:00 0.5 0.0 .55 GPTZ 05-Oct-2026 15:46:00 16:38:00 224.5 225 -.2% GPT-PREC 05-Oct-2026 15:46:00 17:08:00 156.6 155 1.09% NO2 GPT-PREC 05-Oct-2026 15:46:00 17:08:00 68.3 70 -2.3% NO2 Precision NO2_Diff PRECDIFF 05-Oct-2026 17:15:00 17:15:05 67.8 68.387 -.75% NOx NOx_Auto NO-PREC 05-Oct-2026 15:46:00 16:11:00 69.1 70 -1.14% Ozone O3_Auto ZERO 05-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 05-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.17% SO2 SO2_Auto ZERO 05-Oct-2026 19:46:00 20:11:00 0 0.0 .09 SPAN 05-Oct-2026 19:46:00 20:36:00 87.5 90 -2.78% PREC 05-Oct-2026 19:46:00 21:01:00 38.6 40 -3.29% Date Printed: 10/6/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/5/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 8.6 14.3 5.6 01:00 7.6 12.5 4.8 02:00 7.2 12.0 4.8 03:00 7.1 11.1 3.9 04:00 6.6 10.7 4.1 05:00 6.9 13.5 6.6 06:00 6.4 11.2 4.8 07:00 6.1 10.3 4.2 08:00 5.5 10.8 5.3 09:00 4.8 9.6 4.7 10:00 5.1 11.0 5.7 11:00 4.2 11.3 6.9 12:00 4.3 12.3 7.8 13:00 4.2 11.7 7.2 14:00 3.6 9.9 6.0 15:00 3.9 11.6 7.5 16:00 4.1 15.0 10.5 17:00 4.7 14.3 9.4 18:00 5.5 14.5 8.9 19:00 6.1 16.5 10.4 20:00 6.9 16.6 9.8 21:00 8.6 20.5 12.0 22:00 9.8 28.0 18.5 23:00 5.2 13.2 8.1 Average 5.9 13.4 7.3 Max 9.8 28.0 18.5 Max Hour 22:00 22:00 22:00 Min 3.6 9.6 3.9 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.29% Date Printed: 10/6/2026 01:30 Daily Summary Report Site: Union Cross 10/5/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .003 738.3 61.1 61.0 01:00 .002 738.3 60.8 60.8 02:00 .002 738.1 60.4 60.4 03:00 .001 737.7 59.5 59.5 04:00 .001 737.6 59.2 59.3 05:00 .001 737.7 59.1 59.1 06:00 .001 738.1 58.9 58.9 07:00 .002 738.5 59.1 59.1 08:00 .004 739.0 60.6 60.3 09:00 .014 739.4 63.1 58.2 10:00 .023 739.4 65.2 55.9 11:00 .032 739.2 67.9 54.3 12:00 .036 738.9 69.2 53.7 13:00 .035 738.3 69.7 54.4 14:00 .037 737.8 71.4 55.7 15:00 .041 737.5 72.7 55.3 16:00 .043 737.5 73.3 55.7 17:00 .037 737.6 70.8 56.3 18:00 .028 737.9 65.5 55.3 19:00 .021 738.2 62.0 55.2 20:00 .013 738.6 59.9 55.1 21:00 .007 739.1 57.6 55.0 22:00 .008 C 739.3 57.7 54.9 23:00 C 739.5 58.4 49.9 Average .017 738.3 63.4 56.8 Max .043 739.5 73.3 61.0 Max Hour 16:00 23:00 16:00 00:00 Min .001 737.5 57.6 49.9 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 05-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 05-Oct-2026 22:50:00 23:50:00 0.069 0.069 .73% 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