Date Printed: 8/23/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/22/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .027 4.8 12.5 7.6 01:00 .029 5.0 13.4 8.4 02:00 .025 5.4 15.1 9.6 03:00 .015 6.9 20.6 13.6 04:00 .019 6.0 15.8 9.8 05:00 .018 6.0 15.4 9.4 06:00 .017 6.1 14.2 8.0 07:00 .021 B 6.2 12.8 6.6 08:00 .025 6.1 11.7 5.5 09:00 .031 5.0 8.9 3.9 10:00 .035 4.6 8.7 4.1 11:00 .038 4.8 8.6 3.7 12:00 .043 5.4 8.9 3.5 13:00 .043 5.4 9.8 4.4 14:00 .042 5.9 10.1 4.2 15:00 .041 5.8 9.5 3.6 16:00 .041 6.2 9.8 3.6 17:00 .041 6.4 10.8 4.4 18:00 .040 7.1 12.2 5.1 19:00 .037 7.5 13.7 6.2 20:00 .030 8.4 14.4 6.0 21:00 .040 7.2 14.0 6.8 22:00 .037 C 5.9 19.2 13.2 23:00 C 6.3 16.4 10.0 Average .031 6.0 12.7 6.7 Max .043 8.4 20.6 13.6 Max Hour 13:00 20:00 03:00 03:00 Min .015 4.6 8.6 3.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 22-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 22-Aug-2026 22:50:00 23:50:00 0.067 0.07 -2.96% Date Printed: 8/23/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/22/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .037 .1 2.2 2.4 .1 01:00 .038 .1 1.9 2.0 .1 02:00 .035 .1 1.9 2.0 .1 03:00 .033 .2 2.2 2.4 .1 04:00 .033 .1 2.1 2.3 .1 05:00 .027 .2 2.8 3.0 .1 06:00 .024 .3 3.1 3.4 .2 07:00 .025 .3 3.9 4.3 .2 08:00 .030 .4 3.6 4.1 .1 09:00 .039 .4 2.8 3.3 .1 10:00 .044 .3 2.2 2.5 .1 11:00 .047 .2 1.9 2.1 .1 12:00 .051 .2 1.7 1.9 .1 13:00 .054 .1 1.8 2.0 .2 14:00 .054 .2 2.2 2.5 .2 15:00 .050 .2 C 1.9 C 2.2 C .3 16:00 .045 C C C .2 17:00 .045 .2 C 2.0 C 2.3 C .2 18:00 .044 .1 2.7 2.8 .2 19:00 .045 .1 4.4 4.5 .2 C 20:00 .039 .1 5.3 5.5 C 21:00 .046 .1 1.9 2.1 .2 C 22:00 .040 C .1 2.4 2.6 .1 23:00 C .1 3.3 3.5 .1 Average .040 .1 2.6 2.8 .1 Max .054 .4 5.3 5.5 .3 Max Hour 14:00 09:00 20:00 20:00 15:00 Min .024 .1 1.7 1.9 .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 22-Aug-2026 15:46:00 16:11:00 65.6 70 -6.18% GPT-PS 22-Aug-2026 15:46:00 16:18:00 0.4 0.0 .41 GPTZ 22-Aug-2026 15:46:00 16:38:00 213 225 -5.29% GPT-PREC 22-Aug-2026 15:46:00 17:08:00 148.5 155 -4.16% NO2 GPT-PREC 22-Aug-2026 15:46:00 17:08:00 65.4 70 -6.57% NO2 Precision NO2_Diff PRECDIFF 22-Aug-2026 17:15:00 17:15:05 64.5 65.403 -1.32% NOx NOx_Auto NO-PREC 22-Aug-2026 15:46:00 16:11:00 65.8 70 -6% Ozone O3_Auto ZERO 22-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 22-Aug-2026 22:50:00 23:50:00 0.069 0.07 -1.95% SO2 SO2_Auto ZERO 22-Aug-2026 19:46:00 20:11:00 0.1 0.0 .12 SPAN 22-Aug-2026 19:46:00 20:36:00 89.6 90 -.43% PREC 22-Aug-2026 19:46:00 21:01:00 39.5 40 -1.22% Date Printed: 8/23/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/22/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.4 11.2 6.5 01:00 4.6 10.5 5.6 02:00 4.7 10.7 5.7 03:00 4.5 9.9 5.1 04:00 4.9 10.6 5.5 05:00 5.8 11.9 5.8 06:00 6.1 13.0 6.6 07:00 6.9 13.8 6.6 08:00 6.2 12.4 5.9 09:00 5.8 11.6 5.5 10:00 4.9 10.4 5.1 11:00 4.9 10.5 5.2 12:00 5.4 11.3 5.4 13:00 5.8 11.5 5.2 14:00 6.5 11.6 4.6 15:00 6.5 11.4 4.4 16:00 6.5 11.7 4.6 17:00 7.2 13.0 5.2 18:00 7.7 13.0 4.7 19:00 9.2 15.0 5.3 20:00 9.4 15.4 5.5 21:00 7.0 14.6 7.2 22:00 7.9 25.0 16.7 23:00 8.7 28.6 19.5 Average 6.3 13.2 6.5 Max 9.4 28.6 19.5 Max Hour 20:00 23:00 23:00 Min 4.4 9.9 4.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.22% Date Printed: 8/23/2026 01:30 Daily Summary Report Site: Union Cross 8/22/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .026 736.8 68.3 67.4 01:00 .032 736.3 68.8 67.1 02:00 .029 736.1 68.8 67.0 03:00 .024 735.9 68.7 67.1 04:00 .026 735.8 68.9 67.3 05:00 .024 736.1 68.8 67.5 06:00 .024 736.6 69.1 67.6 07:00 .026 736.7 69.4 68.1 08:00 .030 736.7 70.2 68.1 09:00 .031 736.8 70.7 68.1 10:00 .036 736.6 73.5 68.0 11:00 .043 736.2 74.9 67.6 12:00 .048 735.9 77.8 68.2 13:00 .051 735.4 79.9 68.8 14:00 .051 734.8 81.3 69.3 15:00 .049 734.4 81.5 69.4 16:00 .049 733.9 82.1 69.4 17:00 .051 733.8 80.9 69.0 18:00 .050 733.9 78.3 68.6 19:00 .043 734.4 76.2 68.7 20:00 .037 734.7 74.9 68.9 21:00 .042 735.3 72.1 65.4 22:00 .042 C 734.9 65.3 64.1 23:00 C 734.6 65.1 64.6 Average .037 735.5 73.1 67.7 Max .051 736.8 82.1 69.4 Max Hour 17:00 09:00 16:00 16:00 Min .024 733.8 65.1 64.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 22-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 22-Aug-2026 22:50:00 23:50:00 0.071 0.07 1.58% 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