Date Printed: 8/22/2025 01:30 Daily Summary Report Site: Clemmons Middle 8/21/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .009 7.6 14.3 6.7 01:00 .009 8.1 14.0 5.9 02:00 .008 7.3 12.9 5.6 03:00 .012 5.9 11.4 5.4 04:00 .014 5.2 10.0 4.7 05:00 .007 5.4 11.9 6.4 06:00 .011 5.2 12.8 7.6 07:00 .018 6.1 11.8 5.6 08:00 .023 10.5 16.6 6.1 09:00 .030 8.9 14.8 5.9 10:00 .034 6.0 10.6 4.6 11:00 .035 5.7 10.2 4.5 12:00 .035 5.5 11.4 5.8 13:00 .038 5.8 11.8 5.9 14:00 .040 6.0 13.6 7.6 15:00 .041 6.0 13.5 7.4 16:00 .047 6.5 13.7 7.2 17:00 .041 6.4 14.0 7.6 18:00 .031 6.2 13.5 7.2 19:00 .022 6.4 18.5 12.0 20:00 .024 6.1 12.8 6.7 21:00 .026 4.8 10.6 5.8 22:00 .026 C 5.1 14.2 9.1 23:00 C 4.9 13.5 8.6 Average .025 6.3 13.0 6.6 Max .047 10.5 18.5 12.0 Max Hour 16:00 08:00 19:00 19:00 Min .007 4.8 10.0 4.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 21-Aug-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 21-Aug-2025 22:50:00 23:50:00 0.068 0.07 -1.94% Date Printed: 8/22/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/21/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .013 .1 2.6 2.7 .0 01:00 .013 .2 2.5 2.7 .0 02:00 .012 .1 1.8 1.9 .0 03:00 .013 .2 1.7 2.0 .0 04:00 .013 .1 1.5 1.7 .0 05:00 .010 .2 1.9 2.1 .0 06:00 .014 .3 2.1 2.4 .0 07:00 .021 .4 2.2 2.6 .0 08:00 .026 .4 2.0 2.5 B 09:00 .029 1.8 3.3 5.2 D 10:00 .034 1.2 2.5 3.9 D 11:00 .035 .0 1.0 1.1 D 12:00 .038 .0 1.0 1.0 D 13:00 .041 .0 1.3 1.3 D 14:00 .041 .0 1.2 1.2 D 15:00 .045 .1 C 1.6 C 1.8 C D 16:00 .049 C C C .5 17:00 .042 .0 C 2.0 C 2.0 C .1 18:00 .037 .0 3.1 3.1 .1 19:00 .030 .0 5.1 5.1 .0 C 20:00 .028 .0 4.2 4.2 C 21:00 .027 .0 3.5 3.5 .3 C 22:00 .020 C .1 3.6 3.7 .1 23:00 C .3 4.4 4.7 .1 Average .027 .2 2.4 2.7 .0 Max .049 1.8 5.1 5.2 .5 Max Hour 16:00 09:00 19:00 09:00 16:00 Min .010 .0 1.0 1.0 .0 Count 23 23 23 23 15 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 21-Aug-2025 15:46:00 16:11:00 65.5 70 -6.33% GPT-PS 21-Aug-2025 15:46:00 16:18:00 0.4 0.0 .41 GPTZ 21-Aug-2025 15:46:00 16:38:00 211.2 225 -6.11% GPT-PREC 21-Aug-2025 15:46:00 17:08:00 146.7 155 -5.31% NO2 GPT-PREC 21-Aug-2025 15:46:00 17:08:00 65.2 70 -6.83% NO2 Precision NO2_Diff PRECDIFF 21-Aug-2025 17:15:00 17:15:05 64.4 65.216 -1.14% NOx NOx_Auto NO-PREC 21-Aug-2025 15:46:00 16:11:00 65.6 70 -6.17% Ozone O3_Auto ZERO 21-Aug-2025 22:50:00 23:20:00 -0.003 0.0 0.00 PREC 21-Aug-2025 22:50:00 23:50:00 0.064 0.07 -8.36% SO2 SO2_Auto ZERO 21-Aug-2025 19:46:00 20:11:00 0 0.0 -.06 SPAN 21-Aug-2025 19:46:00 20:36:00 88.3 90 -1.88% PREC 21-Aug-2025 19:46:00 21:01:00 39.4 40 -1.44% Date Printed: 8/22/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/21/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.7 15.6 7.4 01:00 7.4 13.2 5.3 02:00 6.4 12.4 5.6 03:00 5.8 12.1 5.9 04:00 5.6 11.1 5.2 05:00 5.9 12.3 6.1 06:00 5.4 11.6 5.9 07:00 5.7 12.3 6.1 08:00 7.0 12.9 5.4 09:00 7.9 14.7 6.2 10:00 6.7 12.9 5.6 11:00 6.4 11.6 4.6 12:00 6.4 12.7 5.6 13:00 6.5 12.9 5.7 14:00 6.5 13.3 6.0 15:00 7.0 13.6 5.8 16:00 7.5 13.6 5.3 17:00 7.3 13.8 5.7 18:00 7.1 14.1 6.3 19:00 6.3 13.4 6.5 20:00 4.6 10.7 5.6 21:00 4.2 10.3 5.7 22:00 4.7 12.2 7.2 23:00 5.5 13.7 7.8 Average 6.3 12.7 5.9 Max 7.9 15.6 7.8 Max Hour 09:00 00:00 23:00 Min 4.2 10.3 4.6 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.44% Date Printed: 8/22/2025 01:30 Daily Summary Report Site: Union Cross 8/21/2025 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .010 732.8 71.1 70.3 01:00 .013 732.6 71.3 69.7 02:00 .012 B 732.6 71.3 69.8 03:00 .011 732.3 71.1 69.6 04:00 .008 732.2 70.2 69.3 05:00 .010 732.5 69.8 68.9 06:00 .014 733.0 70.1 68.6 07:00 .023 733.5 70.8 67.9 08:00 .026 733.9 72.3 67.9 09:00 .030 734.0 74.5 68.0 10:00 .032 733.8 77.1 68.4 11:00 .036 733.8 79.5 68.6 12:00 .044 733.5 81.6 69.1 13:00 .046 733.2 82.4 69.2 14:00 .050 732.8 83.4 69.2 15:00 .051 732.7 84.0 69.5 16:00 .044 732.8 84.1 69.7 17:00 .036 B 732.7 82.8 70.0 18:00 .032 733.0 80.6 69.5 19:00 .027 733.7 77.6 69.7 20:00 .025 734.2 76.3 69.8 21:00 .028 734.7 75.9 68.9 22:00 .025 C 735.2 75.1 68.6 23:00 C 735.4 73.4 69.5 Average .027 733.3 76.0 69.1 Max .051 735.4 84.1 70.3 Max Hour 15:00 23:00 16:00 00:00 Min .008 732.2 69.8 67.9 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 21-Aug-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 21-Aug-2025 22:50:00 23:50:00 0.069 0.07 -.69% 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