Date Printed: 11/2/2026 01:30 Daily Summary Report Site: Clemmons Middle 11/1/2026 Interval: 001h O3 PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .020 8.4 14.5 6.1 01:00 .020 7.4 14.2 6.7 02:00 .018 7.5 13.5 6.0 03:00 .021 7.2 13.1 5.8 04:00 .020 7.0 12.8 5.7 05:00 .019 6.8 12.4 5.6 06:00 .024 6.7 12.2 5.4 07:00 .021 6.4 11.4 4.9 08:00 .023 5.9 10.9 4.9 09:00 .029 B 5.2 10.6 5.3 10:00 .033 B 4.7 10.2 5.5 11:00 .036 4.4 9.6 5.1 12:00 .038 4.3 8.5 4.1 13:00 .040 4.2 9.0 4.7 14:00 .041 4.2 9.3 5.1 15:00 .041 3.9 7.3 3.4 16:00 .039 3.9 8.1 4.1 17:00 .036 4.1 9.2 5.0 18:00 .033 4.4 9.4 5.1 19:00 .032 5.0 10.1 5.1 20:00 .032 5.2 10.3 5.1 21:00 .028 5.2 10.6 5.4 22:00 .022 C 5.5 11.0 5.4 23:00 C 5.5 10.9 5.3 Average .028 5.5 10.7 5.2 Max .041 8.4 14.5 6.7 Max Hour 15:00 00:00 00:00 01:00 Min .018 3.9 7.3 3.4 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error O3 O3_Auto ZERO 01-Nov-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 01-Nov-2026 22:50:00 23:50:00 0.07 0.071 -.33% Date Printed: 11/2/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 11/1/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .029 .1 3.2 3.3 .1 01:00 .031 .0 2.3 2.3 .1 02:00 .027 .0 3.0 3.1 .1 03:00 .020 .1 6.3 6.5 .1 04:00 .023 .1 3.8 4.0 .1 05:00 .026 .1 2.7 2.8 .2 06:00 .028 .1 2.2 2.3 .1 07:00 .027 .1 2.5 2.7 .2 08:00 .027 .4 2.4 2.8 .2 09:00 .029 .5 2.4 3.0 .2 10:00 .032 .4 1.8 2.3 .2 11:00 .036 .5 2.1 2.6 .2 12:00 .038 .2 2.0 2.3 .2 13:00 .041 .4 1.9 2.4 .2 14:00 .042 .2 1.8 2.0 .2 15:00 .040 .1 C 1.7 C 1.8 C .2 16:00 .037 C C C .2 17:00 .032 .1 C 6.3 C 6.5 C .2 18:00 .029 .2 6.9 7.1 .2 19:00 .032 .2 5.0 5.3 .2 C 20:00 .035 .0 3.6 3.7 C 21:00 .033 .0 3.7 3.8 .2 C 22:00 .031 C .0 4.0 4.1 .2 23:00 C .1 3.8 4.0 .2 Average .031 .1 3.2 3.5 .1 Max .042 .5 6.9 7.1 .2 Max Hour 14:00 11:00 18:00 18:00 23:00 Min .020 .0 1.7 1.8 .1 Count 23 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 01-Nov-2026 15:46:00 16:11:00 68.6 70 -1.95% GPT-PS 01-Nov-2026 15:46:00 16:18:00 0.4 0.0 .46 GPTZ 01-Nov-2026 15:46:00 16:38:00 222.6 225 -1.06% GPT-PREC 01-Nov-2026 15:46:00 17:08:00 155.3 155 .26% NO2 GPT-PREC 01-Nov-2026 15:46:00 17:08:00 67.3 70 -3.73% NO2 Precision NO2_Diff PRECDIFF 01-Nov-2026 17:15:00 17:15:05 67.2 67.388 -.26% NOx NOx_Auto NO-PREC 01-Nov-2026 15:46:00 16:11:00 68.6 70 -1.94% Ozone O3_Auto ZERO 01-Nov-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 01-Nov-2026 22:50:00 23:50:00 0.067 0.07 -2.85% SO2 SO2_Auto ZERO 01-Nov-2026 19:46:00 20:11:00 0 0.0 .02 SPAN 01-Nov-2026 19:46:00 20:36:00 85.9 90 -4.5% PREC 01-Nov-2026 19:46:00 21:01:00 38 40 -4.87% Date Printed: 11/2/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 11/1/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 6.3 12.7 6.7 01:00 6.8 12.9 6.3 02:00 8.2 12.9 5.1 03:00 7.6 13.3 6.1 04:00 6.7 11.9 5.4 05:00 6.3 11.8 5.8 06:00 5.8 11.6 6.0 07:00 5.3 9.7 4.6 08:00 5.4 9.6 4.4 09:00 5.1 10.3 5.5 10:00 4.6 10.5 6.1 11:00 4.3 9.1 4.9 12:00 4.1 8.6 4.5 13:00 3.8 9.5 5.7 14:00 3.7 8.2 4.6 15:00 3.8 8.7 4.9 16:00 4.1 9.7 5.7 17:00 5.1 13.6 8.7 18:00 5.6 13.2 7.9 19:00 4.9 11.5 6.8 20:00 5.0 10.6 5.8 21:00 5.2 10.2 5.2 22:00 5.5 10.6 5.3 23:00 5.7 11.3 5.8 Average 5.3 10.9 5.7 Max 8.2 13.6 8.7 Max Hour 02:00 17:00 17:00 Min 3.7 8.2 4.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.87% Date Printed: 11/2/2026 01:30 Daily Summary Report Site: Union Cross 11/1/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .029 746.8 01:00 .031 746.9 55.1 41.3 02:00 .027 747.4 53.8 41.8 03:00 .023 747.6 53.1 42.3 04:00 .019 747.7 52.2 43.2 05:00 .021 747.9 52.0 42.9 06:00 .025 748.0 52.3 42.0 07:00 .025 748.1 52.7 41.6 08:00 .028 748.5 53.9 41.3 09:00 .030 748.8 55.1 41.6 10:00 .033 748.6 57.2 41.6 11:00 .036 748.5 59.0 41.0 12:00 .038 747.7 59.9 39.6 13:00 .040 747.0 61.0 40.2 14:00 .040 746.6 61.2 39.8 15:00 .039 746.7 61.0 39.7 16:00 .037 746.8 60.6 40.6 17:00 .031 746.8 59.6 41.2 18:00 .031 746.7 58.6 41.1 19:00 .032 746.8 58.3 41.5 20:00 .033 746.8 58.1 41.5 21:00 .032 746.9 56.8 41.4 22:00 .027 C 746.8 55.5 41.6 23:00 C 746.2 55.5 41.6 Average .030 747.3 56.6 41.3 Max .040 748.8 61.2 43.2 Max Hour 14:00 09:00 14:00 04:00 Min .019 746.2 52.0 39.6 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 01-Nov-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 01-Nov-2026 22:50:00 23:50:00 0.07 0.07 -.42% 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