Date Printed: 10/30/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/29/2026 Interval: 001h O3 PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .012 15.9 23.1 7.1 01:00 .012 B 14.9 20.7 5.8 02:00 .013 14.1 19.2 5.0 03:00 .012 13.7 19.0 5.3 04:00 .010 13.7 19.7 6.0 05:00 .009 13.4 18.4 5.0 06:00 .008 13.8 20.7 6.9 07:00 .012 12.8 21.4 8.5 08:00 .018 11.7 21.6 9.9 09:00 .028 10.3 20.1 9.7 10:00 .041 8.8 18.9 10.0 11:00 .049 8.7 19.1 10.3 12:00 .053 9.1 18.4 9.3 13:00 .055 8.6 16.3 7.7 14:00 .054 7.9 16.5 8.6 15:00 .054 7.5 15.2 7.6 16:00 .050 7.6 16.6 8.9 17:00 .046 B 7.2 15.1 7.8 18:00 .016 8.3 19.5 11.2 19:00 .015 10.6 22.7 12.1 20:00 .013 10.3 19.9 9.6 21:00 .011 9.8 18.7 8.9 22:00 .007 C 11.4 20.1 8.6 23:00 C 10.6 19.4 8.8 Average .026 10.8 19.1 8.2 Max .055 15.9 23.1 12.1 Max Hour 13:00 00:00 00:00 19:00 Min .007 7.2 15.1 5.0 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error O3 O3_Auto ZERO 29-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 29-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.36% Date Printed: 10/30/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/29/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .025 .1 4.5 4.7 .1 01:00 .026 .2 3.9 4.2 .2 02:00 .026 .1 3.0 3.2 .1 03:00 .025 .1 2.7 2.9 .1 04:00 .025 .1 2.5 2.7 .1 05:00 .022 .2 3.3 3.5 .1 06:00 .022 .3 3.7 4.1 .1 07:00 .023 .9 3.9 4.8 .1 08:00 .026 .9 3.2 4.1 .2 09:00 .035 .5 2.0 2.6 .2 10:00 .044 .3 1.6 1.9 .2 11:00 .051 .1 1.3 1.5 .2 12:00 .054 .3 2.5 2.9 .2 13:00 .055 .3 2.6 3.0 .2 14:00 .057 .1 2.0 2.2 .2 15:00 .057 .1 C 2.4 C 2.5 C .2 16:00 .056 C C C .2 17:00 .054 .0 C 3.6 C 3.7 C .2 18:00 .037 .4 13.6 14.1 .2 19:00 .022 .4 20.5 21.0 .2 C 20:00 .008 2.4 27.7 30.2 C 21:00 .003 7.4 28.4 35.9 .3 C 22:00 .002 C 18.5 26.2 44.8 .5 23:00 C 19.1 24.1 43.3 .5 Average .032 2.2 8.2 10.6 .2 Max .057 19.1 28.4 44.8 .5 Max Hour 15:00 23:00 21:00 22:00 23:00 Min .002 .0 1.3 1.5 .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 29-Oct-2026 15:46:00 16:11:00 68.9 70 -1.43% GPT-PS 29-Oct-2026 15:46:00 16:18:00 0.5 0.0 .54 GPTZ 29-Oct-2026 15:46:00 16:38:00 223.3 225 -.73% GPT-PREC 29-Oct-2026 15:46:00 17:08:00 155.9 155 .59% NO2 GPT-PREC 29-Oct-2026 15:46:00 17:08:00 68.1 70 -2.6% NO2 Precision NO2_Diff PRECDIFF 29-Oct-2026 17:15:00 17:15:05 67.4 68.177 -1.09% NOx NOx_Auto NO-PREC 29-Oct-2026 15:46:00 16:11:00 68.9 70 -1.51% Ozone O3_Auto ZERO 29-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 29-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.46% SO2 SO2_Auto ZERO 29-Oct-2026 19:46:00 20:11:00 0.1 0.0 .11 SPAN 29-Oct-2026 19:46:00 20:36:00 86.6 90 -3.69% PREC 29-Oct-2026 19:46:00 21:01:00 38.2 40 -4.37% Date Printed: 10/30/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/29/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 12.7 19.2 6.8 01:00 13.4 19.7 6.5 02:00 13.0 18.4 5.7 03:00 12.9 18.8 6.2 04:00 13.1 19.2 6.4 05:00 12.8 18.0 5.5 06:00 12.7 18.5 6.2 07:00 11.4 17.5 6.3 08:00 10.3 17.1 6.9 09:00 7.4 14.3 6.8 10:00 8.2 21.7 13.2 11:00 8.4 15.6 7.0 12:00 9.6 17.9 7.8 13:00 9.3 20.6 10.8 14:00 7.9 17.1 8.8 15:00 8.0 17.3 8.9 16:00 8.0 18.1 9.7 17:00 7.6 17.2 9.4 18:00 8.3 19.2 10.9 19:00 9.1 18.9 9.9 20:00 12.9 24.6 11.9 21:00 14.3 24.7 10.7 22:00 13.9 23.4 9.8 23:00 13.3 23.2 10.3 Average 10.7 19.1 8.4 Max 14.3 24.7 13.2 Max Hour 21:00 21:00 10:00 Min 7.4 14.3 5.5 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.37% Date Printed: 10/30/2026 01:30 Daily Summary Report Site: Union Cross 10/29/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .023 743.4 57.1 54.1 01:00 .025 743.4 56.0 54.2 02:00 .023 743.1 55.9 54.8 03:00 .026 742.8 56.1 55.0 04:00 .022 742.9 55.7 55.0 05:00 .014 743.1 55.4 54.8 06:00 .013 743.1 55.2 54.7 07:00 .014 743.5 55.1 54.8 08:00 .021 743.7 57.4 54.7 09:00 .032 743.7 62.3 54.3 10:00 .043 743.4 66.5 55.0 11:00 .052 743.0 68.8 54.9 12:00 .056 742.2 71.2 55.5 13:00 .056 741.3 72.4 55.6 14:00 .058 741.0 72.9 55.2 15:00 .059 740.7 75.1 55.2 16:00 .058 740.5 73.8 53.7 17:00 .052 740.6 69.1 51.7 18:00 .043 740.8 63.2 50.6 19:00 .034 741.0 60.8 50.5 20:00 .024 741.0 59.0 50.6 21:00 .025 741.1 57.2 50.9 22:00 .022 C 740.9 56.1 51.1 23:00 C 740.6 55.6 51.4 Average .034 742.1 61.9 53.6 Max .059 743.7 75.1 55.6 Max Hour 15:00 09:00 15:00 13:00 Min .013 740.5 55.1 50.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 29-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 29-Oct-2026 22:50:00 23:50:00 0.07 0.07 1.71% 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