Date Printed: 1/13/2026 01:30 Daily Summary Report Site: Clemmons Middle 1/12/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 B 3.4 5.5 2.0 01:00 B 3.3 5.2 1.8 02:00 B 3.4 5.3 1.8 03:00 B 3.9 5.9 2.0 04:00 B 3.9 6.1 2.2 05:00 B 3.9 6.2 2.2 06:00 B 4.2 7.0 2.8 07:00 B 4.5 7.5 3.0 08:00 B 4.5 8.2 3.6 09:00 B 4.3 7.0 2.7 10:00 B 3.8 6.7 2.9 11:00 B 3.6 6.0 2.3 12:00 B 3.5 5.8 2.2 13:00 B 3.6 6.2 2.5 14:00 B 3.8 6.7 2.9 15:00 B 3.6 6.3 2.6 16:00 B 6.0 9.3 3.2 17:00 B 4.5 9.2 4.6 18:00 B 3.7 7.5 3.7 19:00 B 7.5 12.5 5.0 20:00 B 4.3 7.9 3.6 21:00 B 10.9 17.8 6.9 22:00 B 6.9 13.8 6.8 23:00 B 6.8 12.1 5.2 Average 4.6 7.9 3.2 Max B 10.9 17.8 6.9 Max Hour 21:00 21:00 21:00 Min B 3.3 5.2 1.8 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 % Error Date Printed: 1/13/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 1/12/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 B .1 2.7 2.8 .0 01:00 B .1 2.5 2.6 .0 02:00 B .1 2.8 2.9 .0 03:00 B .1 2.6 2.7 .0 04:00 B .1 3.1 3.3 .0 05:00 B .1 4.3 4.5 .0 06:00 B .1 7.1 7.3 .0 07:00 B .3 8.5 8.9 .0 08:00 B 4.1 14.0 18.1 .0 09:00 B 3.3 8.0 11.3 .0 10:00 B 2.7 5.7 8.4 .0 11:00 B 2.0 4.4 6.5 .0 12:00 B 1.4 3.4 4.9 .0 13:00 B 1.1 3.4 4.6 .0 14:00 B .9 3.4 4.3 .0 15:00 B .7 C 3.8 C 4.6 C .0 16:00 B C C C .0 17:00 B .4 C 9.9 C 10.3 C .1 18:00 B .3 16.0 16.4 .1 19:00 B .4 15.9 16.3 .1 C 20:00 B .3 13.8 14.1 C 21:00 B .4 12.6 13.1 .2 C 22:00 B .2 10.8 11.1 .1 23:00 B .3 11.1 11.4 .1 Average .8 7.3 8.2 .0 Max B 4.1 16.0 18.1 .2 Max Hour 08:00 18:00 08:00 21:00 Min B .1 2.5 2.6 .0 Count 0 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 12-Jan-2026 15:46:00 16:11:00 66.6 70 -4.76% GPT-PS 12-Jan-2026 15:46:00 16:18:00 0.6 0.0 .64 GPTZ 12-Jan-2026 15:46:00 16:38:00 214.7 225 -4.57% GPT-PREC 12-Jan-2026 15:46:00 17:08:00 149.3 155 -3.64% NO2 GPT-PREC 12-Jan-2026 15:46:00 17:08:00 65.8 70 -5.87% NO2 Precision NO2_Diff PRECDIFF 12-Jan-2026 17:15:00 17:15:05 65.3 65.892 -.81% NOx NOx_Auto NO-PREC 12-Jan-2026 15:46:00 16:11:00 66.7 70 -4.61% SO2 SO2_Auto ZERO 12-Jan-2026 19:46:00 20:11:00 0 0.0 -.02 SPAN 12-Jan-2026 19:46:00 20:36:00 89.8 90 -.22% PREC 12-Jan-2026 19:46:00 21:01:00 40.1 40 .34% Date Printed: 1/13/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 1/12/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 3.5 5.5 2.4 01:00 3.6 5.5 2.3 02:00 3.5 5.4 2.2 03:00 3.8 5.6 2.2 04:00 4.3 6.4 2.6 05:00 4.9 7.0 2.5 06:00 4.1 5.9 2.3 07:00 5.1 7.4 2.8 08:00 5.6 9.6 4.7 09:00 4.5 8.5 4.5 10:00 4.1 8.3 4.6 11:00 4.3 7.0 2.9 12:00 3.4 6.4 3.2 13:00 3.5 6.1 2.8 14:00 3.3 5.8 2.6 15:00 3.5 6.4 3.0 16:00 3.8 6.6 2.9 17:00 5.5 9.1 3.9 18:00 6.3 10.1 4.1 19:00 4.9 8.8 4.3 20:00 4.6 8.1 3.9 21:00 5.8 9.7 4.3 22:00 6.4 13.0 7.2 23:00 6.0 11.0 5.6 Average 4.5 7.6 3.4 Max 6.4 13.0 7.2 Max Hour 22:00 22:00 22:00 Min 3.3 5.4 2.2 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 .34% Date Printed: 1/13/2026 01:30 Daily Summary Report Site: Union Cross 1/12/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 B 744.0 30.2 13.7 01:00 B 743.9 29.5 13.6 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 743.9 29.8 13.6 Max B 744.0 30.2 13.7 Max Hour 00:00 00:00 00:00 Min B 743.9 29.5 13.6 Count 0 2 2 2 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 .34% 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