Date Printed: 11/3/2025 01:30 Daily Summary Report Site: Clemmons Middle 11/2/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .002 10.7 16.6 5.9 01:00 .001 10.3 15.5 5.1 02:00 .001 11.3 17.5 6.2 03:00 .001 11.6 17.6 5.9 04:00 .001 12.1 17.6 5.5 05:00 .001 12.6 18.4 5.8 06:00 .001 14.3 20.4 6.1 07:00 .002 15.1 20.8 5.7 08:00 .013 14.4 19.7 5.2 09:00 .029 8.9 13.7 4.8 10:00 .039 6.0 9.9 3.9 11:00 .043 5.4 9.1 3.6 12:00 .044 4.7 8.2 3.5 13:00 .044 4.8 8.3 3.4 14:00 .044 4.6 8.1 3.5 15:00 .042 5.0 8.1 3.1 16:00 .038 5.2 9.7 4.5 17:00 .023 5.8 12.0 6.1 18:00 .020 6.5 10.8 4.2 19:00 .026 7.4 12.0 4.5 20:00 .017 8.7 13.6 4.8 21:00 .028 11.3 16.4 5.1 22:00 .022 C 10.7 14.8 4.1 23:00 C 10.3 15.0 4.6 Average .020 9.0 13.9 4.7 Max .044 15.1 20.8 6.2 Max Hour 14:00 07:00 07:00 02:00 Min .001 4.6 8.1 3.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Nov-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 02-Nov-2025 22:50:00 23:50:00 0.07 0.07 -.02% Date Printed: 11/3/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 11/2/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .004 2.0 11.5 13.5 .0 01:00 .003 3.2 12.5 15.7 .0 02:00 .002 4.1 12.2 16.4 .0 03:00 .001 4.1 10.2 14.4 .0 04:00 .005 1.9 8.6 10.6 .0 05:00 .004 1.8 9.0 10.9 .0 06:00 .010 1.2 8.8 10.0 .0 07:00 .018 .9 5.9 6.9 .0 08:00 .023 2.1 5.7 7.9 .3 09:00 .034 1.3 4.7 6.1 .2 10:00 .041 .5 2.1 2.6 .0 11:00 .043 .4 1.7 2.2 .0 12:00 .045 .2 1.3 1.6 .0 13:00 .045 .3 1.5 1.9 .0 14:00 .044 .1 1.5 1.6 .0 15:00 .043 .1 C 1.8 C 2.0 C .0 16:00 .041 C C C .0 17:00 .033 .2 C 8.7 C 8.9 C .0 18:00 .031 .3 7.5 7.9 .0 19:00 .028 .2 7.0 7.2 .0 C 20:00 .025 .2 8.4 8.7 C 21:00 .033 .1 4.7 4.8 .0 C 22:00 .034 C .1 3.3 3.5 .0 23:00 C .1 4.1 4.2 .0 Average .025 1.1 6.2 7.3 .0 Max .045 4.1 12.5 16.4 .3 Max Hour 13:00 03:00 01:00 02:00 08:00 Min .001 .1 1.3 1.6 .0 Count 23 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 02-Nov-2025 15:46:00 16:11:00 68.7 70 -1.74% GPT-PS 02-Nov-2025 15:46:00 16:18:00 0.5 0.0 .58 GPTZ 02-Nov-2025 15:46:00 16:38:00 221.7 225 -1.42% GPT-PREC 02-Nov-2025 15:46:00 17:08:00 154.5 155 -.32% NO2 GPT-PREC 02-Nov-2025 15:46:00 17:08:00 68.8 70 -1.6% NO2 Precision NO2_Diff PRECDIFF 02-Nov-2025 17:15:00 17:15:05 67.2 68.882 -2.3% NOx NOx_Auto NO-PREC 02-Nov-2025 15:46:00 16:11:00 68.7 70 -1.85% Ozone O3_Auto ZERO 02-Nov-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 02-Nov-2025 22:50:00 23:50:00 0.069 0.07 -.44% SO2 SO2_Auto ZERO 02-Nov-2025 19:46:00 20:11:00 -0.1 0.0 -.1 SPAN 02-Nov-2025 19:46:00 20:36:00 89 90 -1.1% PREC 02-Nov-2025 19:46:00 21:01:00 39.6 40 -.8% Date Printed: 11/3/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 11/2/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 23.3 30.4 8.1 01:00 23.3 29.7 7.5 02:00 19.2 24.9 6.7 03:00 19.2 24.6 6.3 04:00 17.5 22.6 5.9 05:00 15.4 20.2 5.6 06:00 14.2 19.5 6.1 07:00 12.4 17.8 6.0 08:00 10.5 16.5 6.3 09:00 7.4 13.7 6.4 10:00 5.6 10.5 4.9 11:00 5.5 11.0 5.4 12:00 5.2 9.9 4.7 13:00 5.3 11.0 5.6 14:00 5.1 9.5 4.3 15:00 4.9 9.1 4.1 16:00 5.4 9.9 4.5 17:00 21.1 34.7 13.9 18:00 12.3 21.4 9.3 19:00 9.3 15.6 6.5 20:00 10.6 17.0 6.6 21:00 9.7 14.9 5.4 22:00 8.6 12.3 3.9 23:00 9.8 13.0 3.4 Average 11.7 17.4 6.1 Max 23.3 34.7 13.9 Max Hour 01:00 17:00 17:00 Min 4.9 9.1 3.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.8% Date Printed: 11/3/2025 01:30 Daily Summary Report Site: Union Cross 11/2/2025 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .014 739.9 01:00 .005 739.9 44.0 37.2 02:00 .008 739.9 44.2 36.1 03:00 .013 739.9 44.3 35.2 04:00 .013 740.3 42.6 37.0 05:00 .006 740.6 42.9 37.9 06:00 .013 740.7 43.5 36.0 07:00 .023 740.9 46.8 35.6 08:00 .029 741.6 51.3 37.4 09:00 .036 741.8 56.5 39.2 10:00 .042 741.4 59.0 38.6 11:00 .045 741.2 60.2 37.1 12:00 .045 740.8 61.2 37.7 13:00 .046 740.2 61.0 37.7 14:00 .045 739.9 60.9 37.6 15:00 .045 739.6 60.3 37.8 16:00 .042 739.8 58.8 37.6 17:00 .036 740.1 56.4 37.8 18:00 .030 739.9 55.9 38.2 19:00 .030 740.3 54.7 38.5 20:00 .034 740.1 53.8 39.6 21:00 .036 740.1 52.6 41.7 22:00 .034 C 739.9 50.5 45.8 23:00 C 739.6 49.8 47.7 Average .029 740.3 52.6 38.4 Max .046 741.8 61.2 47.7 Max Hour 13:00 09:00 12:00 23:00 Min .005 739.6 42.6 35.2 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Nov-2025 22:50:00 23:20:00 0.002 0.0 0.00 PREC 02-Nov-2025 22:50:00 23:50:00 0.071 0.07 1.28% 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