Date Printed: 10/26/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/25/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .031 4.2 9.9 5.6 01:00 .025 B 4.2 12.6 8.4 02:00 .020 4.1 12.6 8.5 03:00 .019 4.2 15.8 11.6 04:00 .017 4.2 17.3 13.1 05:00 .015 4.0 10.4 6.4 06:00 .014 4.0 13.9 9.9 07:00 .021 4.0 11.8 7.8 08:00 .030 4.0 11.2 7.2 09:00 .033 3.8 8.9 5.1 10:00 .036 3.7 8.5 4.8 11:00 .039 3.7 9.0 5.3 12:00 .041 3.6 9.7 6.1 13:00 .043 3.7 9.3 5.6 14:00 .044 3.6 9.4 5.8 15:00 .044 3.4 9.9 6.4 16:00 .044 3.5 10.4 6.9 17:00 .035 B 3.7 11.4 7.7 18:00 .026 4.4 11.4 6.9 19:00 .020 4.9 12.8 7.8 20:00 .015 5.5 12.1 6.5 21:00 .016 5.3 10.7 5.3 22:00 .014 C 5.5 11.8 6.3 23:00 C 6.8 32.2 25.4 Average .027 4.2 12.2 7.9 Max .044 6.8 32.2 25.4 Max Hour 16:00 23:00 23:00 23:00 Min .014 3.4 8.5 4.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 25-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 25-Oct-2026 22:50:00 23:50:00 0.07 0.07 .61% Date Printed: 10/26/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/25/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .031 .0 1.8 1.8 .1 01:00 .027 .0 1.9 2.0 .1 02:00 .027 .1 1.9 2.1 .0 03:00 .027 .1 1.4 1.6 .0 04:00 .027 .1 1.3 1.4 .0 05:00 .027 .1 1.2 1.3 .0 06:00 .027 .2 1.4 1.6 .0 07:00 .027 .3 1.6 1.9 .0 08:00 .029 .4 1.2 1.6 .1 09:00 .031 .5 1.1 1.6 .1 10:00 .036 .4 1.1 1.6 .1 11:00 .040 .2 .7 1.0 .1 12:00 .041 .4 1.0 1.4 .1 13:00 .042 .1 .7 .9 .1 14:00 .043 .1 .8 1.0 .1 15:00 .043 .1 C .9 C 1.1 C .1 16:00 .042 C C C .1 17:00 .039 .0 C 2.4 C 2.5 C .1 18:00 .033 .0 5.3 5.4 .1 19:00 .030 .1 6.8 7.0 .1 C 20:00 .029 .0 6.4 6.4 C 21:00 .029 .0 4.6 4.7 .1 C 22:00 .029 C .1 3.8 3.9 .1 23:00 C .1 2.7 2.9 .1 Average .032 .1 2.2 2.4 .0 Max .043 .5 6.8 7.0 .1 Max Hour 15:00 09:00 19:00 19:00 23:00 Min .027 .0 .7 .9 .0 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 25-Oct-2026 15:46:00 16:11:00 68.6 70 -1.91% GPT-PS 25-Oct-2026 15:46:00 16:18:00 0.4 0.0 .5 GPTZ 25-Oct-2026 15:46:00 16:38:00 222.6 225 -1.06% GPT-PREC 25-Oct-2026 15:46:00 17:08:00 155.5 155 .34% NO2 GPT-PREC 25-Oct-2026 15:46:00 17:08:00 67.9 70 -2.98% NO2 Precision NO2_Diff PRECDIFF 25-Oct-2026 17:15:00 17:15:05 67 67.915 -1.22% NOx NOx_Auto NO-PREC 25-Oct-2026 15:46:00 16:11:00 68.7 70 -1.83% Ozone O3_Auto ZERO 25-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 25-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.85% SO2 SO2_Auto ZERO 25-Oct-2026 19:46:00 20:11:00 0 0.0 .03 SPAN 25-Oct-2026 19:46:00 20:36:00 86.6 90 -3.67% PREC 25-Oct-2026 19:46:00 21:01:00 38.2 40 -4.49% Date Printed: 10/26/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/25/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.1 8.4 4.6 01:00 4.1 8.1 4.2 02:00 4.1 8.1 4.3 03:00 4.3 9.0 5.0 04:00 4.0 8.4 4.7 05:00 3.9 8.3 4.7 06:00 3.9 8.0 4.5 07:00 4.0 8.2 4.5 08:00 4.0 9.3 5.6 09:00 3.9 8.6 4.8 10:00 3.7 9.0 5.4 11:00 3.6 9.0 5.5 12:00 3.5 9.5 6.1 13:00 3.7 9.9 6.3 14:00 3.6 10.6 7.0 15:00 3.6 11.9 8.2 16:00 3.7 15.0 11.3 17:00 3.6 11.2 7.7 18:00 4.1 11.4 7.5 19:00 5.2 13.3 8.3 20:00 4.5 9.7 5.3 21:00 5.4 11.4 6.3 22:00 4.9 10.6 6.0 23:00 4.6 9.7 5.3 Average 4.0 9.8 5.9 Max 5.4 15.0 11.3 Max Hour 21:00 16:00 16:00 Min 3.5 8.0 4.2 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.49% Date Printed: 10/26/2026 01:30 Daily Summary Report Site: Union Cross 10/25/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .031 748.0 50.2 41.3 01:00 .028 748.0 48.9 42.3 02:00 .026 748.0 46.2 41.4 03:00 .025 747.9 45.0 41.2 04:00 .024 748.1 44.3 41.8 05:00 .022 748.4 43.8 42.1 06:00 .022 748.7 44.2 42.8 07:00 .024 749.0 45.7 43.6 08:00 .027 749.3 48.9 44.6 09:00 .031 749.4 10:00 .036 749.5 57.0 45.4 11:00 .039 749.0 59.5 45.6 12:00 .041 748.3 61.5 46.0 13:00 .042 747.4 63.4 46.7 14:00 .044 747.0 64.5 46.9 15:00 .044 746.8 64.6 47.1 16:00 .043 746.6 64.0 46.5 17:00 .037 746.6 61.8 46.4 18:00 .026 746.7 58.1 45.9 19:00 .031 746.7 57.0 45.4 20:00 .027 746.5 55.0 45.2 21:00 .029 746.4 53.7 45.1 22:00 .030 C 746.4 52.5 45.1 23:00 C 746.1 51.4 45.2 Average .031 747.7 53.9 44.5 Max .044 749.5 64.6 47.1 Max Hour 15:00 10:00 15:00 15:00 Min .022 746.1 43.8 41.2 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 25-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 25-Oct-2026 22:50:00 23:50:00 0.071 0.07 1.68% 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