Date Printed: 8/17/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/16/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .001 6.6 17.5 10.9 01:00 .001 6.5 17.7 11.2 02:00 .000 6.9 20.3 13.3 03:00 .000 7.2 21.6 14.3 04:00 .000 6.6 20.0 13.3 05:00 .000 7.0 20.4 13.4 06:00 .001 B 6.3 18.5 12.2 07:00 .008 7.4 17.2 9.8 08:00 .024 7.4 14.5 7.1 09:00 .034 7.3 13.7 6.4 10:00 .040 8.0 14.2 6.2 11:00 .043 8.7 15.4 6.7 12:00 .043 9.6 17.6 8.0 13:00 .042 11.2 25.7 14.4 14:00 .036 8.9 22.6 13.7 15:00 .027 6.8 18.3 11.5 16:00 .027 6.7 18.0 11.2 17:00 .032 6.7 16.9 10.1 18:00 .027 7.2 16.6 9.3 19:00 .018 7.9 20.3 12.3 20:00 .008 8.2 18.7 10.5 21:00 .004 8.3 19.3 11.0 22:00 .007 C 8.6 19.4 10.8 23:00 B 7.3 33.2 25.8 Average .018 7.6 19.0 11.3 Max .043 11.2 33.2 25.8 Max Hour 12:00 13:00 23:00 23:00 Min .000 6.3 13.7 6.2 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 16-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 16-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3% Date Printed: 8/17/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/16/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .005 .8 10.3 11.2 .1 01:00 .007 .5 6.5 7.1 .1 02:00 .004 1.0 6.2 7.2 .1 03:00 .005 .7 4.9 5.6 .1 04:00 .005 .4 4.1 4.5 .1 05:00 .003 .9 4.1 5.1 .1 06:00 .008 1.4 3.9 5.4 .1 07:00 .017 1.2 3.7 5.0 .2 08:00 .031 1.0 3.8 4.9 .2 09:00 .046 .5 3.2 3.8 .3 10:00 .051 .3 2.3 2.7 .3 11:00 .050 .2 1.7 2.0 .3 12:00 .052 .2 1.5 1.7 .4 13:00 .045 .7 3.5 4.3 .4 14:00 .037 .5 3.3 3.8 .2 15:00 .038 .3 C 3.1 C 3.4 C .2 16:00 .043 C C C .2 17:00 .043 .7 C 6.2 C 6.9 C .3 18:00 .038 .3 7.1 7.5 .4 19:00 .035 .2 5.4 5.6 .4 C 20:00 .030 .1 4.5 4.6 C 21:00 .024 .2 6.2 6.4 .3 C 22:00 .023 C .3 3.8 4.1 .2 23:00 C .3 2.8 3.2 .1 Average .027 .5 4.4 5.0 .2 Max .052 1.4 10.3 11.2 .4 Max Hour 12:00 06:00 00:00 00:00 19:00 Min .003 .1 1.5 1.7 .1 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 16-Aug-2026 15:46:00 16:11:00 65.8 70 -5.99% GPT-PS 16-Aug-2026 15:46:00 16:18:00 0.5 0.0 .57 GPTZ 16-Aug-2026 15:46:00 16:38:00 213 225 -5.3% GPT-PREC 16-Aug-2026 15:46:00 17:08:00 149.1 155 -3.75% NO2 GPT-PREC 16-Aug-2026 15:46:00 17:08:00 64.3 70 -8.01% NO2 Precision NO2_Diff PRECDIFF 16-Aug-2026 17:15:00 17:15:05 63.8 64.393 -.78% NOx NOx_Auto NO-PREC 16-Aug-2026 15:46:00 16:11:00 65.9 70 -5.78% Ozone O3_Auto ZERO 16-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 16-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.43% SO2 SO2_Auto ZERO 16-Aug-2026 19:46:00 20:11:00 0 0.0 .07 SPAN 16-Aug-2026 19:46:00 20:36:00 89.5 90 -.46% PREC 16-Aug-2026 19:46:00 21:01:00 39.5 40 -1.01% Date Printed: 8/17/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/16/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.9 15.6 7.3 01:00 7.2 15.1 7.5 02:00 7.8 17.1 8.9 03:00 8.7 18.7 9.6 04:00 9.2 19.9 10.2 05:00 10.0 20.0 9.6 06:00 11.3 20.7 8.9 07:00 10.6 19.2 7.9 08:00 10.5 17.7 6.5 09:00 10.3 16.9 5.8 10:00 10.7 18.5 6.9 11:00 9.7 18.1 7.4 12:00 11.2 24.1 11.4 13:00 10.6 28.5 16.2 14:00 6.2 17.7 10.8 15:00 6.6 16.3 9.1 16:00 7.0 22.6 14.7 17:00 7.9 26.4 17.4 18:00 8.6 22.4 12.8 19:00 9.9 24.2 13.4 20:00 8.8 23.9 14.1 21:00 9.2 20.9 10.9 22:00 9.2 21.3 11.4 23:00 8.0 22.5 13.8 Average 9.0 20.3 10.5 Max 11.3 28.5 17.4 Max Hour 06:00 13:00 17:00 Min 6.2 15.1 5.8 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.01% Date Printed: 8/17/2026 01:30 Daily Summary Report Site: Union Cross 8/16/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .003 739.5 74.4 73.7 01:00 .002 738.9 73.9 73.4 02:00 .002 738.8 73.5 73.2 03:00 .001 738.9 73.1 73.0 04:00 .002 738.9 73.0 72.9 05:00 .001 738.9 72.5 72.5 06:00 .004 739.2 73.4 73.4 07:00 .014 739.5 77.0 74.6 08:00 .028 739.4 80.1 74.6 09:00 .039 739.4 82.8 74.9 10:00 .045 739.4 85.3 75.3 11:00 .051 738.9 87.5 75.5 12:00 .051 738.1 89.7 75.8 13:00 .051 737.4 89.8 75.4 14:00 .045 737.5 82.3 73.1 15:00 .044 737.0 75.9 70.3 16:00 .042 736.3 78.4 70.3 17:00 .042 736.3 83.6 72.2 18:00 .033 736.4 83.2 73.3 19:00 .028 736.2 79.8 73.6 20:00 .025 736.3 78.8 73.8 21:00 .027 736.4 78.7 74.3 22:00 .026 C 736.6 77.8 75.0 23:00 C 736.7 74.9 71.4 Average .026 737.9 79.1 73.5 Max .051 739.5 89.8 75.8 Max Hour 13:00 07:00 13:00 12:00 Min .001 736.2 72.5 70.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 16-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 16-Aug-2026 22:50:00 23:50:00 0.069 0.07 -.45% 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