Date Printed: 10/27/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/26/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .007 7.3 49.5 42.1 01:00 .008 5.5 13.2 7.6 02:00 .009 5.1 16.6 11.4 03:00 .009 4.9 23.3 18.4 04:00 .007 4.9 21.1 16.1 05:00 .005 5.1 28.0 22.8 06:00 .003 5.2 27.4 22.1 07:00 .004 5.5 29.6 24.0 08:00 .010 5.0 10.5 5.4 09:00 .018 4.8 11.0 6.2 10:00 .040 3.5 8.6 5.0 11:00 .043 3.6 9.2 5.5 12:00 .046 3.6 10.1 6.5 13:00 .049 3.6 10.5 6.9 14:00 .050 3.5 11.8 8.2 15:00 .051 3.6 14.7 11.0 16:00 .048 4.1 26.0 21.8 17:00 .039 3.7 13.9 10.2 18:00 .030 10.3 23.4 13.1 19:00 .020 6.0 16.4 10.3 20:00 .016 6.1 13.9 7.8 21:00 .012 6.1 12.9 6.8 22:00 .009 C 5.9 12.0 6.1 23:00 C 5.9 12.8 6.9 Average .023 5.1 17.7 12.5 Max .051 10.3 49.5 42.1 Max Hour 15:00 18:00 00:00 00:00 Min .003 3.5 8.6 5.0 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 26-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 26-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.5% Date Printed: 10/27/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/26/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .029 .1 2.6 2.8 .1 01:00 .024 .0 2.6 2.7 .1 02:00 .023 .0 2.6 2.7 .0 03:00 .021 .0 4.0 4.1 .0 04:00 .008 6.4 17.5 24.0 .1 05:00 .002 8.1 19.0 27.1 .2 06:00 .002 13.8 14.8 28.7 .3 07:00 .003 26.7 10.4 37.1 .5 08:00 .014 10.1 10.1 20.3 .2 09:00 .028 3.9 7.6 11.5 .2 10:00 .036 2.8 7.2 10.1 .2 11:00 .042 1.2 4.0 5.2 .2 12:00 .044 .8 3.2 4.0 .2 13:00 .047 .1 1.1 1.3 .1 14:00 .047 .1 1.5 1.6 .2 15:00 .049 .2 C 1.9 C 2.2 C .2 16:00 .048 C C C .2 17:00 .041 .0 C 5.7 C 5.8 C .2 18:00 .023 .7 15.0 15.7 .2 19:00 .014 .9 18.8 19.7 .2 C 20:00 .004 2.7 25.7 28.5 C 21:00 .002 12.7 24.4 37.2 .4 C 22:00 .002 C 14.1 23.9 38.1 .3 23:00 C 17.4 18.7 36.1 .4 Average .024 5.3 10.5 15.9 .2 Max .049 26.7 25.7 38.1 .5 Max Hour 15:00 07:00 20:00 22:00 07:00 Min .002 .0 1.1 1.3 .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 26-Oct-2026 15:46:00 16:11:00 68.8 70 -1.69% GPT-PS 26-Oct-2026 15:46:00 16:18:00 0.4 0.0 .5 GPTZ 26-Oct-2026 15:46:00 16:38:00 223.1 225 -.82% GPT-PREC 26-Oct-2026 15:46:00 17:08:00 156.2 155 .83% NO2 GPT-PREC 26-Oct-2026 15:46:00 17:08:00 67.4 70 -3.58% NO2 Precision NO2_Diff PRECDIFF 26-Oct-2026 17:15:00 17:15:05 66.8 67.493 -.93% NOx NOx_Auto NO-PREC 26-Oct-2026 15:46:00 16:11:00 69 70 -1.42% Ozone O3_Auto ZERO 26-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 26-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.32% SO2 SO2_Auto ZERO 26-Oct-2026 19:46:00 20:11:00 0.1 0.0 .12 SPAN 26-Oct-2026 19:46:00 20:36:00 86.5 90 -3.83% PREC 26-Oct-2026 19:46:00 21:01:00 38.4 40 -3.98% Date Printed: 10/27/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/26/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.7 9.2 4.8 01:00 4.5 8.5 4.3 02:00 4.0 7.4 3.6 03:00 4.3 8.0 4.0 04:00 4.4 10.5 6.5 05:00 4.7 13.2 9.0 06:00 4.8 12.6 8.3 07:00 5.1 11.8 7.1 08:00 5.0 12.7 7.9 09:00 5.0 11.8 6.9 10:00 5.4 16.6 11.3 11:00 4.2 16.9 12.7 12:00 4.1 19.1 14.9 13:00 3.0 8.8 5.7 14:00 3.1 9.6 6.4 15:00 3.3 10.2 6.8 16:00 3.3 10.2 6.8 17:00 3.3 8.9 5.6 18:00 4.3 11.4 7.3 19:00 6.5 14.8 8.5 20:00 6.9 16.9 10.4 21:00 7.9 19.0 11.5 22:00 8.1 16.6 9.0 23:00 9.3 17.5 8.8 Average 4.9 12.5 7.8 Max 9.3 19.1 14.9 Max Hour 23:00 12:00 12:00 Min 3.0 7.4 3.6 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.98% Date Printed: 10/27/2026 01:30 Daily Summary Report Site: Union Cross 10/26/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .025 746.0 50.2 45.4 01:00 .019 746.0 47.8 45.4 02:00 .018 745.9 47.1 45.7 03:00 .013 745.6 46.1 45.4 04:00 .013 745.6 45.4 44.7 05:00 .011 745.6 06:00 .005 745.6 44.6 43.9 07:00 .005 745.6 45.7 44.8 08:00 .011 745.7 51.3 46.3 09:00 .031 745.7 57.9 45.6 10:00 .039 745.5 61.0 46.2 11:00 .042 745.1 62.4 46.5 12:00 .045 744.3 65.2 47.6 13:00 .049 743.4 66.2 46.9 14:00 .049 743.0 67.9 46.6 15:00 .050 742.6 69.0 46.7 16:00 .047 742.4 68.8 46.9 17:00 .042 742.4 64.7 45.2 18:00 .033 742.6 57.7 43.4 19:00 .019 742.6 55.1 42.8 20:00 .018 742.7 53.2 43.1 21:00 .021 742.7 51.8 43.7 22:00 .021 C 742.8 51.0 43.4 23:00 C 742.6 49.7 43.7 Average .027 744.2 55.6 45.2 Max .050 746.0 69.0 47.6 Max Hour 15:00 01:00 15:00 12:00 Min .005 742.4 44.6 42.8 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 26-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 26-Oct-2026 22:50:00 23:50:00 0.07 0.07 .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