Date Printed: 1/27/2026 01:30 Daily Summary Report Site: Clemmons Middle 1/26/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 B 16.0 20.4 4.3 01:00 B 14.6 17.8 3.2 02:00 B 14.7 18.1 3.4 03:00 B 16.6 20.8 4.2 04:00 B 17.1 21.6 4.5 05:00 B 17.9 22.9 5.0 06:00 B 18.9 25.1 6.2 07:00 B 13.8 19.0 5.2 08:00 B 3.0 4.4 1.3 09:00 B 3.3 5.1 1.8 10:00 B 3.5 5.6 2.0 11:00 B 4.1 6.6 2.4 12:00 B 4.8 7.8 3.0 13:00 B 5.2 9.0 3.7 14:00 B 4.7 7.9 3.2 15:00 B 4.1 6.7 2.6 16:00 B 4.3 7.2 2.8 17:00 B 3.8 6.5 2.7 18:00 B 3.7 6.3 2.5 19:00 B 3.6 6.1 2.4 20:00 B 3.8 6.1 2.3 21:00 B 3.3 5.5 2.2 22:00 B 3.1 4.8 1.6 23:00 B 3.4 6.1 2.6 Average 7.9 11.1 3.1 Max B 18.9 25.1 6.2 Max Hour 06:00 06:00 06:00 Min B 3.0 4.4 1.3 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 % Error Date Printed: 1/27/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 1/26/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 B .4 7.0 7.4 .0 01:00 B .3 5.6 6.0 .0 02:00 B .4 6.2 6.7 .0 03:00 B .4 7.5 8.0 .0 04:00 B .4 7.5 7.9 .0 05:00 B .4 7.1 7.5 .0 06:00 B .3 5.8 6.1 .0 07:00 B .5 6.8 7.4 .0 08:00 B .9 3.6 4.5 .0 09:00 B 1.2 2.8 4.0 .0 10:00 B 1.1 2.4 3.6 .0 11:00 B .9 1.9 2.9 .0 12:00 B .8 1.7 2.5 .0 13:00 B .6 1.7 2.4 .0 14:00 B .6 1.7 2.3 .0 15:00 B .4 C 1.5 C 1.9 C .0 16:00 B C C C .0 17:00 B .1 C 2.0 C 2.2 C -.1 18:00 B .0 2.1 2.2 -.1 19:00 B .1 1.9 2.0 -.1 C 20:00 B .1 2.2 2.3 C 21:00 B .1 2.7 2.8 -.1 C 22:00 B .0 1.9 1.9 -.1 23:00 B .0 1.9 1.9 -.1 Average .4 3.7 4.1 .0 Max B 1.2 7.5 8.0 .0 Max Hour 09:00 04:00 03:00 16:00 Min B .0 1.5 1.9 -.1 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 26-Jan-2026 15:46:00 16:11:00 66.3 70 -5.16% GPT-PS 26-Jan-2026 15:46:00 16:18:00 0.6 0.0 .62 GPTZ 26-Jan-2026 15:46:00 16:38:00 214.3 225 -4.74% GPT-PREC 26-Jan-2026 15:46:00 17:08:00 148.7 155 -4.03% NO2 GPT-PREC 26-Jan-2026 15:46:00 17:08:00 66 70 -5.7% NO2 Precision NO2_Diff PRECDIFF 26-Jan-2026 17:15:00 17:15:05 65.5 66.007 -.63% NOx NOx_Auto NO-PREC 26-Jan-2026 15:46:00 16:11:00 66.4 70 -5.13% SO2 SO2_Auto ZERO 26-Jan-2026 19:46:00 20:11:00 -0.1 0.0 -.19 SPAN 26-Jan-2026 19:46:00 20:36:00 87.7 90 -2.49% PREC 26-Jan-2026 19:46:00 21:01:00 39.1 40 -2.06% Date Printed: 1/27/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 1/26/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 13.3 15.3 2.8 01:00 14.4 16.7 3.1 02:00 14.5 17.0 3.3 03:00 15.5 18.6 4.1 04:00 16.3 20.4 5.0 05:00 17.2 21.8 5.7 06:00 15.1 19.2 5.0 07:00 8.8 11.9 3.6 08:00 3.0 4.7 1.9 09:00 3.3 4.8 1.8 10:00 3.6 6.2 2.9 11:00 4.0 6.8 3.1 12:00 4.2 6.9 3.0 13:00 4.5 7.7 3.4 14:00 4.4 7.1 3.0 15:00 4.1 6.9 3.1 16:00 4.0 6.9 3.3 17:00 3.5 5.6 2.4 18:00 3.6 5.8 2.6 19:00 3.9 6.0 2.6 20:00 3.9 5.8 2.4 21:00 3.8 6.1 2.8 22:00 3.7 5.8 2.7 23:00 3.3 5.2 2.4 Average 7.3 9.9 3.1 Max 17.2 21.8 5.7 Max Hour 05:00 05:00 05:00 Min 3.0 4.7 1.8 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -2.06% Date Printed: 1/27/2026 01:30 Daily Summary Report Site: Union Cross 1/26/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 B 730.2 27.8 27.8 01:00 B 729.9 27.9 27.9 02:00 B 730.1 28.2 28.2 03:00 B 729.9 28.7 28.7 04:00 B 730.0 29.2 29.2 05:00 B 730.5 29.5 29.5 06:00 B 731.1 30.1 30.1 07:00 B 731.9 30.9 29.8 08:00 B 732.9 30.2 25.0 09:00 B 733.9 29.7 21.9 10:00 B 734.7 30.1 18.6 11:00 B 735.1 30.7 16.2 12:00 B 735.4 31.1 13.8 13:00 B 735.7 30.9 11.7 14:00 B 736.1 30.7 9.4 15:00 B 736.6 29.8 7.9 16:00 B 737.6 28.0 6.7 17:00 B 738.7 25.9 4.3 18:00 B 739.9 23.4 2.2 19:00 B 741.0 21.5 .0 20:00 B 741.6 20.5 -.7 21:00 B 742.1 19.5 -.8 22:00 B 742.4 18.7 -.8 23:00 B 742.7 17.8 -1.3 Average 735.4 27.1 15.2 Max B 742.7 31.1 30.1 Max Hour 23:00 12:00 06:00 Min B 729.9 17.8 -1.3 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 26-Jan-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 26-Jan-2026 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