Date Printed: 11/1/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/31/2026 Interval: 001h O3 PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .014 9.3 15.8 6.5 01:00 .018 B 10.4 18.3 7.9 02:00 .034 6.4 12.0 5.6 03:00 .037 5.5 11.5 5.9 04:00 .037 5.4 11.6 6.2 05:00 .036 5.4 11.7 6.2 06:00 .034 5.4 12.0 6.5 07:00 .016 5.6 13.9 8.2 08:00 .023 5.4 13.8 8.4 09:00 .033 4.6 11.6 7.0 10:00 .034 4.5 12.9 8.3 11:00 .035 4.6 10.8 6.1 12:00 .039 4.2 10.0 5.7 13:00 .041 4.4 9.3 4.9 14:00 .041 B 4.6 14.7 10.1 15:00 .040 4.7 10.9 6.1 16:00 .034 4.8 13.7 8.8 17:00 .021 B 5.6 14.4 8.7 18:00 .021 6.9 15.1 8.3 19:00 .017 9.6 18.8 9.1 20:00 .012 9.8 24.1 14.2 21:00 .016 9.0 17.8 8.8 22:00 .012 C 8.7 16.1 7.3 23:00 C 9.6 16.7 7.0 Average .028 6.4 14.0 7.5 Max .041 10.4 24.1 14.2 Max Hour 14:00 01:00 20:00 20:00 Min .012 4.2 9.3 4.9 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error O3 O3_Auto ZERO 31-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 31-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.61% Date Printed: 11/1/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/31/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .036 .1 5.1 5.2 .2 01:00 .038 .0 3.0 3.1 .2 02:00 .040 .0 2.5 2.5 .2 03:00 .040 .0 2.1 2.2 .2 04:00 .039 .0 2.3 2.4 .2 05:00 .037 .0 2.2 2.2 .2 06:00 .034 .1 3.4 3.5 .2 07:00 .032 .1 3.1 3.3 .2 08:00 .033 .3 2.6 2.9 .2 09:00 .032 .4 2.5 3.0 .3 10:00 .032 .6 2.5 3.1 .3 11:00 .037 .4 1.9 2.4 .2 12:00 .040 .3 1.8 2.2 .2 13:00 .041 .2 2.1 2.3 .2 14:00 .042 .2 2.0 2.2 .2 15:00 .041 .2 C 2.3 C 2.6 C .2 16:00 .038 C C C .2 17:00 .033 -.1 C 5.3 C 5.1 C .2 18:00 .026 .4 9.4 9.8 .2 19:00 .027 .5 8.4 9.1 .2 C 20:00 .031 .3 5.8 6.2 C 21:00 .031 .0 4.5 4.6 .3 C 22:00 .027 C .1 4.8 4.9 .2 23:00 C .1 5.4 5.6 .1 Average .035 .1 3.6 3.9 .2 Max .042 .6 9.4 9.8 .3 Max Hour 14:00 10:00 18:00 18:00 21:00 Min .026 -.1 1.8 2.2 .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 31-Oct-2026 15:46:00 16:11:00 68.6 70 -1.88% GPT-PS 31-Oct-2026 15:46:00 16:18:00 0.5 0.0 .54 GPTZ 31-Oct-2026 15:46:00 16:38:00 222.8 225 -.94% GPT-PREC 31-Oct-2026 15:46:00 17:08:00 155.9 155 .63% NO2 GPT-PREC 31-Oct-2026 15:46:00 17:08:00 67.7 70 -3.16% NO2 Precision NO2_Diff PRECDIFF 31-Oct-2026 17:15:00 17:15:05 66.9 67.79 -1.28% NOx NOx_Auto NO-PREC 31-Oct-2026 15:46:00 16:11:00 68.7 70 -1.83% Ozone O3_Auto ZERO 31-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 31-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.37% SO2 SO2_Auto ZERO 31-Oct-2026 19:46:00 20:11:00 0 0.0 .06 SPAN 31-Oct-2026 19:46:00 20:36:00 86.2 90 -4.14% PREC 31-Oct-2026 19:46:00 21:01:00 38.1 40 -4.74% Date Printed: 11/1/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/31/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 5.9 12.6 6.9 01:00 5.8 12.9 7.4 02:00 5.0 11.6 6.8 03:00 4.9 10.5 5.7 04:00 4.9 12.2 7.5 05:00 5.2 11.8 6.9 06:00 5.3 12.3 7.3 07:00 5.5 11.7 6.4 08:00 5.2 10.4 5.5 09:00 5.4 13.5 8.4 10:00 4.8 12.0 7.3 11:00 4.2 11.8 7.7 12:00 4.1 10.4 6.2 13:00 4.6 11.4 6.8 14:00 4.5 12.4 7.9 15:00 4.4 11.0 6.6 16:00 4.6 12.6 8.1 17:00 5.0 12.7 7.9 18:00 6.3 15.9 9.9 19:00 7.3 16.3 9.3 20:00 6.9 14.3 7.6 21:00 7.0 14.5 7.8 22:00 7.3 14.0 7.0 23:00 6.8 13.1 6.5 Average 5.4 12.5 7.3 Max 7.3 16.3 9.9 Max Hour 22:00 19:00 18:00 Min 4.1 10.4 5.5 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.74% Date Printed: 11/1/2026 01:30 Daily Summary Report Site: Union Cross 10/31/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .043 743.4 60.9 40.6 01:00 .040 744.0 59.2 39.2 02:00 .041 744.2 58.4 38.0 03:00 .039 744.4 56.5 37.7 04:00 .037 744.8 54.8 37.6 05:00 .034 745.3 53.1 37.3 06:00 .028 745.8 51.0 37.3 07:00 .027 746.5 50.5 37.8 08:00 .029 747.1 52.8 39.1 09:00 .032 747.3 55.8 39.7 10:00 .033 747.6 57.2 40.4 11:00 .035 747.5 58.2 40.9 12:00 .037 746.9 60.7 42.4 13:00 .040 746.3 63.1 43.2 14:00 .042 746.0 64.4 43.8 15:00 .042 746.0 64.2 43.3 16:00 .038 746.4 62.9 42.9 17:00 .030 746.5 60.1 41.7 18:00 .025 746.9 57.5 41.5 19:00 .021 747.1 54.9 41.4 20:00 .026 747.2 57.2 41.3 21:00 .028 747.4 56.9 41.5 22:00 .032 C 747.4 56.4 41.6 23:00 C 747.2 54.6 42.3 Average .033 746.2 57.5 40.5 Max .043 747.6 64.4 43.8 Max Hour 00:00 10:00 14:00 14:00 Min .021 743.4 50.5 37.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 31-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 31-Oct-2026 22:50:00 23:50:00 0.07 0.07 1.31% 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