Date Printed: 7/3/2026 01:30 Daily Summary Report Site: Clemmons Middle 7/2/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .016 14.3 25.9 11.5 01:00 .014 B 14.1 24.8 10.7 02:00 .016 14.5 25.3 10.8 03:00 .016 14.1 23.0 8.8 04:00 .012 14.0 22.2 8.2 05:00 .008 B 13.8 20.8 6.9 06:00 .014 13.8 24.4 10.5 07:00 .026 13.7 B 22.1 B 8.3 B 08:00 .038 B B B 09:00 .049 P 18.9 P 40.5 P 21.6 P 10:00 .051 19.3 49.4 30.0 11:00 .046 18.9 45.9 26.9 12:00 .044 17.8 42.2 24.3 13:00 .059 17.1 40.8 23.6 14:00 .061 15.1 36.4 21.2 15:00 .064 14.3 33.6 19.2 16:00 .065 14.6 33.8 19.2 17:00 .058 15.4 34.9 19.5 18:00 .065 16.6 41.8 25.2 19:00 .061 17.9 64.4 46.6 20:00 .049 16.8 41.0 24.1 21:00 .040 16.4 35.0 18.5 22:00 .034 B 16.5 34.6 18.1 23:00 C 15.9 31.8 15.9 Average .039 15.8 34.5 18.6 Max .065 19.3 64.4 46.6 Max Hour 18:00 10:00 19:00 19:00 Min .008 13.7 20.8 6.9 Count 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Jul-2026 22:50:00 23:20:00 -0.002 0.0 0.00 PREC 02-Jul-2026 22:50:00 23:50:00 0.066 0.07 -4.39% Date Printed: 7/3/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 7/2/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .034 .3 6.9 7.2 .9 01:00 .029 .3 7.8 8.2 .7 02:00 .026 .3 7.7 8.1 .6 03:00 .024 .3 7.0 7.3 .6 04:00 .022 .3 6.5 6.9 .4 05:00 .018 .6 7.8 8.4 .3 06:00 .021 1.9 10.5 12.4 .8 07:00 .034 1.3 7.3 8.6 .4 08:00 .046 .9 5.5 6.5 .3 09:00 .042 .4 2.7 3.1 .3 10:00 .051 .5 4.3 4.8 1.0 11:00 .062 .8 6.6 7.4 2.1 12:00 .068 .8 8.1 9.0 2.8 13:00 .066 .6 6.6 7.3 2.4 14:00 .068 .3 5.1 5.4 1.6 15:00 .072 .2 C 4.7 C 5.0 C 1.3 16:00 .066 C C C 1.0 17:00 .057 .3 C 4.4 C 4.7 C .7 18:00 .055 .1 3.9 4.0 .5 19:00 .062 .1 4.4 4.5 .3 C 20:00 .052 .1 6.4 6.5 C 21:00 .041 .2 9.3 9.5 .3 C 22:00 .039 C .3 8.2 8.5 .3 23:00 C .2 6.5 6.8 .6 Average .045 .4 6.4 6.9 .8 Max .072 1.9 10.5 12.4 2.8 Max Hour 15:00 06:00 06:00 06:00 12:00 Min .018 .1 2.7 3.1 .3 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-Jul-2026 15:46:00 16:11:00 66.2 70 -5.37% GPT-PS 02-Jul-2026 15:46:00 16:18:00 0.5 0.0 .58 GPTZ 02-Jul-2026 15:46:00 16:38:00 214.1 225 -4.83% GPT-PREC 02-Jul-2026 15:46:00 17:08:00 149.5 155 -3.53% NO2 GPT-PREC 02-Jul-2026 15:46:00 17:08:00 65.3 70 -6.68% NO2 Precision NO2_Diff PRECDIFF 02-Jul-2026 17:15:00 17:15:05 64.6 65.325 -1.1% NOx NOx_Auto NO-PREC 02-Jul-2026 15:46:00 16:11:00 66.9 70 -4.29% Ozone O3_Auto ZERO 02-Jul-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 02-Jul-2026 22:50:00 23:50:00 0.067 0.07 -3.91% SO2 SO2_Auto ZERO 02-Jul-2026 19:46:00 20:11:00 0 0.0 .01 SPAN 02-Jul-2026 19:46:00 20:36:00 90.7 90 .82% PREC 02-Jul-2026 19:46:00 21:01:00 40.1 40 .31% Date Printed: 7/3/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 7/2/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 15.6 30.4 13.6 01:00 15.9 29.7 12.8 02:00 16.4 29.9 12.5 03:00 16.0 27.5 10.7 04:00 16.2 26.8 9.8 05:00 15.9 26.9 10.2 06:00 15.9 27.5 10.6 07:00 16.7 32.2 14.2 08:00 21.1 P 61.8 P 37.7 P 09:00 21.4 53.8 29.5 10:00 21.0 53.8 29.8 11:00 21.5 54.9 30.0 12:00 20.3 49.2 25.6 13:00 17.7 48.0 26.9 14:00 17.2 45.2 24.8 15:00 17.4 45.0 24.5 16:00 17.8 44.8 23.9 17:00 17.7 47.7 26.8 18:00 18.3 44.8 23.6 19:00 19.8 46.1 23.7 20:00 20.6 43.5 20.7 21:00 20.3 44.7 22.3 22:00 20.3 43.0 20.8 23:00 19.2 38.9 18.0 Average 18.3 41.5 20.9 Max 21.5 61.8 37.7 Max Hour 11:00 08:00 08:00 Min 15.6 26.8 9.8 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 .31% Date Printed: 7/3/2026 01:30 Daily Summary Report Site: Union Cross 7/2/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .033 737.9 80.4 71.0 01:00 .032 737.8 79.0 70.6 02:00 .031 737.7 77.8 70.7 03:00 .027 737.7 76.7 71.2 04:00 .022 737.9 75.6 71.3 05:00 .020 738.2 74.7 71.3 06:00 .024 738.6 76.8 71.4 07:00 .033 738.7 79.9 72.3 08:00 .047 739.0 84.7 73.2 09:00 .058 738.9 88.0 72.3 10:00 .060 739.0 90.6 73.4 11:00 .051 739.1 92.7 74.1 12:00 .047 738.9 95.0 74.4 13:00 .041 738.6 97.0 73.0 14:00 .043 738.2 98.0 73.2 15:00 .050 738.0 98.6 73.9 16:00 .052 737.7 98.8 74.2 17:00 .068 737.5 97.3 76.2 18:00 .067 737.7 95.2 76.1 19:00 .057 737.9 91.9 75.1 20:00 .050 738.0 88.8 73.8 21:00 .040 738.4 87.1 73.0 22:00 .038 C 738.5 85.1 72.3 23:00 C 738.5 83.6 71.6 Average .043 738.2 87.2 72.9 Max .068 739.1 98.8 76.2 Max Hour 17:00 11:00 16:00 17:00 Min .020 737.5 74.7 70.6 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 02-Jul-2026 22:50:00 23:50:00 0.07 0.07 .02% 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