Date Printed: 12/11/2025 01:30 Daily Summary Report Site: Clemmons Middle 12/10/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 B 15.7 20.5 4.8 01:00 B 15.4 19.9 4.4 02:00 B 15.4 19.5 4.0 03:00 B 15.4 19.1 3.6 04:00 B 15.4 19.9 4.4 05:00 B 14.4 18.0 3.5 06:00 B 14.4 18.6 4.2 07:00 B 15.0 21.2 6.1 08:00 B 15.5 22.6 7.1 09:00 B 14.4 19.4 5.0 10:00 B 14.7 20.2 5.4 11:00 B 13.1 17.8 4.7 12:00 B 7.6 12.2 4.5 13:00 B 4.9 8.8 3.9 14:00 B 4.3 8.2 3.9 15:00 B 4.3 9.0 4.6 16:00 B 4.2 10.9 6.7 17:00 B 5.0 10.4 5.3 18:00 B 6.5 12.6 6.1 19:00 B 7.5 12.2 4.7 20:00 B 5.2 7.9 2.7 21:00 B 4.1 6.9 2.8 22:00 B 4.4 6.7 2.3 23:00 B 14.6 21.2 6.5 Average 10.4 15.1 4.6 Max B 15.7 22.6 7.1 Max Hour 00:00 08:00 08:00 Min B 4.1 6.7 2.3 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 % Error Date Printed: 12/11/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 12/10/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 B .9 11.6 12.5 .0 01:00 B .8 11.1 12.0 .0 02:00 B .7 10.8 11.6 .0 03:00 B .8 11.6 12.5 .0 04:00 B .9 10.4 11.3 .0 05:00 B .9 10.7 11.7 .0 06:00 B 1.6 11.9 13.6 .0 07:00 B 2.9 B 12.0 B 15.0 B .0 08:00 B B B B .0 09:00 B B B B .0 10:00 B B B B .0 11:00 B B B B .1 12:00 B 2.5 5.0 7.6 .1 13:00 B 1.1 3.8 4.9 .1 14:00 B .9 3.4 4.4 .1 15:00 B .6 C 3.6 C 4.3 C .0 16:00 B C C C .1 17:00 B .3 C 8.0 C 8.4 C .1 18:00 B .2 6.4 6.6 .1 19:00 B .2 5.9 6.1 .0 C 20:00 B .2 3.9 4.1 C 21:00 B .1 3.5 3.7 .0 C 22:00 B .2 3.3 3.5 .0 23:00 B .1 2.9 3.1 .0 Average .8 7.3 8.2 .0 Max B 2.9 12.0 15.0 .1 Max Hour 07:00 07:00 07:00 18:00 Min B .1 2.9 3.1 .0 Count 0 19 19 19 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 10-Dec-2025 15:46:00 16:11:00 68.7 70 -1.79% GPT-PS 10-Dec-2025 15:46:00 16:18:00 0.5 0.0 .56 GPTZ 10-Dec-2025 15:46:00 16:38:00 221.6 225 -1.49% GPT-PREC 10-Dec-2025 15:46:00 17:08:00 153.5 155 -.93% NO2 GPT-PREC 10-Dec-2025 15:46:00 17:08:00 69.7 70 -.42% NO2 Precision NO2_Diff PRECDIFF 10-Dec-2025 17:15:00 17:15:05 68 69.709 -2.33% NOx NOx_Auto NO-PREC 10-Dec-2025 15:46:00 16:11:00 69.6 70 -.48% SO2 SO2_Auto ZERO 10-Dec-2025 19:46:00 20:11:00 0 0.0 -.07 SPAN 10-Dec-2025 19:46:00 20:36:00 88.2 90 -1.98% PREC 10-Dec-2025 19:46:00 21:01:00 39.3 40 -1.68% Date Printed: 12/11/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 12/10/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 16.2 20.4 5.4 01:00 16.8 20.8 5.1 02:00 16.2 18.7 3.5 03:00 15.8 19.1 4.3 04:00 14.5 17.5 3.9 05:00 14.3 16.5 3.0 06:00 14.1 16.5 3.3 07:00 14.6 17.3 3.6 08:00 15.2 18.3 4.0 09:00 15.4 18.5 3.8 10:00 15.1 18.4 3.9 11:00 14.5 18.6 4.4 12:00 10.4 15.9 5.5 13:00 5.2 9.1 3.8 14:00 4.4 9.2 4.6 15:00 4.4 10.2 5.6 16:00 4.2 9.6 5.3 17:00 4.5 9.4 4.8 18:00 9.7 15.7 6.0 19:00 8.1 13.8 5.8 20:00 4.3 6.6 2.4 21:00 4.3 7.0 2.8 22:00 5.1 8.2 3.2 23:00 4.4 6.7 2.4 Average 10.4 14.2 4.1 Max 16.8 20.8 6.0 Max Hour 01:00 01:00 18:00 Min 4.2 6.6 2.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.68% Date Printed: 12/11/2025 01:30 Daily Summary Report Site: Union Cross 12/10/2025 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 B 736.2 29.9 26.5 01:00 B 735.8 30.4 27.0 02:00 B 735.4 30.6 27.4 03:00 B 734.9 31.3 27.9 04:00 B 734.2 31.0 28.6 05:00 B 733.4 31.1 29.2 06:00 B 733.0 31.1 29.7 07:00 B 732.6 31.2 30.2 08:00 B 732.2 31.9 30.7 09:00 B 731.6 34.6 31.8 10:00 B 730.7 38.8 32.6 11:00 B 729.3 43.3 32.9 12:00 B 727.6 49.7 32.9 13:00 B 726.0 54.0 31.9 14:00 B 725.2 55.1 31.8 15:00 B 725.3 56.1 32.5 16:00 B 725.5 54.5 31.8 17:00 B 726.1 53.2 31.0 18:00 B 727.0 51.5 31.9 19:00 B 727.2 49.3 34.6 20:00 B 727.2 48.5 34.4 21:00 B 727.3 47.4 32.5 22:00 B 727.7 47.0 32.3 23:00 B 728.0 45.5 31.8 Average 729.9 41.9 30.9 Max B 736.2 56.1 34.6 Max Hour 00:00 15:00 19:00 Min B 725.2 29.9 26.5 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 10-Dec-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 10-Dec-2025 22:50:00 23:50:00 0 0.0 0.00 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