Date Printed: 10/9/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/8/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .014 7.8 14.8 6.9 01:00 .010 8.1 14.1 6.0 02:00 .011 8.6 14.9 6.2 03:00 .006 8.1 13.7 5.6 04:00 .003 B 8.3 13.6 5.2 05:00 .006 8.7 15.3 6.5 06:00 .002 9.7 22.1 12.3 07:00 .004 9.5 23.8 14.2 08:00 .011 11.1 19.8 8.6 09:00 .023 9.4 18.8 9.4 10:00 .047 7.7 15.7 7.9 11:00 .055 7.2 18.0 10.8 12:00 .060 6.8 18.8 12.0 13:00 .062 7.0 21.0 14.0 14:00 .062 6.6 19.2 12.5 15:00 .060 6.6 21.0 14.4 16:00 .054 7.3 20.9 13.5 17:00 .042 12.7 29.3 16.5 18:00 .026 7.5 21.8 14.2 19:00 .024 8.1 20.0 11.8 20:00 .027 7.9 19.5 11.6 21:00 .029 7.2 18.6 11.4 22:00 .026 C 6.7 15.9 9.2 23:00 C 6.6 15.5 8.8 Average .028 8.1 18.5 10.3 Max .062 12.7 29.3 16.5 Max Hour 14:00 17:00 17:00 17:00 Min .002 6.6 13.6 5.2 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 08-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 08-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.14% Date Printed: 10/9/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/8/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .028 .1 7.7 7.9 .2 01:00 .023 .2 7.5 7.8 .2 02:00 .020 .1 7.5 7.6 .2 03:00 .013 .1 9.1 9.3 .2 04:00 .005 .5 12.1 12.7 .2 05:00 .007 1.5 11.6 13.2 .2 06:00 .005 4.7 14.6 19.3 .2 07:00 .007 14.7 16.7 31.4 .4 08:00 .024 2.8 9.2 12.0 .2 09:00 .038 1.0 5.0 6.1 .3 10:00 .051 D D D .3 11:00 .056 D D D .4 12:00 .058 D D D .4 13:00 .060 D D D .4 14:00 .060 D D D .4 15:00 .059 D D D .3 16:00 .056 D D D .3 17:00 .046 .1 10.5 10.7 .3 18:00 .042 .0 11.6 11.7 .3 19:00 .033 .1 16.6 16.7 .3 C 20:00 .041 .0 8.7 8.8 C 21:00 .039 .0 6.8 6.9 .3 C 22:00 .037 C .0 5.6 5.7 .2 23:00 C .0 4.5 4.6 .2 Average .035 1.5 9.7 11.3 .2 Max .060 14.7 16.7 31.4 .4 Max Hour 14:00 07:00 07:00 07:00 14:00 Min .005 .0 4.5 4.6 .2 Count 23 17 17 17 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO2 Precision NO2_Diff PRECDIFF 08-Oct-2026 17:15:00 17:15:05 67.9 68.284 -.52% Ozone O3_Auto ZERO 08-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 08-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.74% SO2 SO2_Auto ZERO 08-Oct-2026 19:46:00 20:11:00 0.1 0.0 .12 SPAN 08-Oct-2026 19:46:00 20:36:00 86.9 90 -3.39% PREC 08-Oct-2026 19:46:00 21:01:00 38.5 40 -3.63% Date Printed: 10/9/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/8/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 9.6 18.4 8.8 01:00 9.0 16.9 7.8 02:00 9.7 15.9 6.2 03:00 10.2 16.7 6.6 04:00 10.6 17.7 7.2 05:00 11.3 16.7 5.5 06:00 11.9 18.3 6.4 07:00 12.3 22.2 9.7 08:00 11.6 21.9 9.9 09:00 8.8 18.1 8.7 10:00 7.2 16.6 8.7 11:00 6.7 21.4 13.7 12:00 6.7 24.2 16.3 13:00 7.9 25.0 15.9 14:00 7.0 24.1 15.8 15:00 6.8 22.9 14.9 16:00 7.3 20.2 12.1 17:00 8.5 24.5 15.1 18:00 9.0 27.5 17.8 19:00 9.4 27.3 17.3 20:00 7.3 22.0 14.3 21:00 6.9 19.7 12.5 22:00 6.5 18.4 11.7 23:00 6.6 17.6 10.9 Average 8.7 20.5 11.4 Max 12.3 27.5 17.8 Max Hour 07:00 18:00 18:00 Min 6.5 15.9 5.5 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.63% Date Printed: 10/9/2026 01:30 Daily Summary Report Site: Union Cross 10/8/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .023 735.7 60.6 54.0 01:00 .017 735.5 58.3 54.0 02:00 .018 735.3 58.5 54.4 03:00 .018 735.0 57.8 54.9 04:00 .015 735.1 57.3 55.5 05:00 .017 735.6 57.6 55.9 06:00 .019 735.8 57.0 55.5 07:00 .017 736.2 58.8 56.3 08:00 .021 736.7 64.0 57.6 09:00 .033 736.9 70.5 59.4 10:00 .049 736.9 75.8 59.4 11:00 .060 736.8 79.3 59.5 12:00 .062 736.4 81.5 60.7 13:00 .063 735.9 82.8 61.6 14:00 .064 735.5 83.6 62.0 15:00 .063 735.3 83.8 61.8 16:00 .055 735.5 82.1 61.1 17:00 .045 735.8 78.4 60.1 18:00 .039 736.4 75.4 59.3 19:00 .042 737.1 74.5 58.1 20:00 .027 737.7 71.4 58.1 21:00 .026 738.2 68.7 56.8 22:00 .032 C 738.6 67.9 53.4 23:00 C 738.9 67.3 49.0 Average .035 736.3 69.7 57.4 Max .064 738.9 83.8 62.0 Max Hour 14:00 23:00 15:00 14:00 Min .015 735.0 57.0 49.0 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 08-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 08-Oct-2026 22:50:00 23:50:00 0.07 0.07 .1% 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