Date Printed: 7/13/2025 01:30 Daily Summary Report Site: Clemmons Middle 7/12/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .009 9.0 18.5 9.4 01:00 .008 9.3 18.4 9.1 02:00 .004 9.5 18.4 8.8 03:00 .004 9.5 17.6 8.0 04:00 .001 9.8 21.3 11.5 05:00 .001 10.0 21.5 11.5 06:00 .005 9.1 19.8 10.6 07:00 .014 9.3 17.4 8.0 08:00 .027 8.0 14.8 6.6 09:00 .036 6.9 11.8 4.8 10:00 .040 6.2 11.6 5.4 11:00 .044 6.3 11.3 5.0 12:00 .045 6.7 11.4 4.6 13:00 .046 7.1 11.5 4.3 14:00 .054 7.4 12.7 5.2 15:00 .053 7.2 13.6 6.4 16:00 .043 5.7 11.4 5.6 17:00 .041 3.9 9.7 5.8 18:00 .041 3.6 7.8 4.1 19:00 .035 3.9 8.6 4.7 20:00 .028 4.1 8.9 4.8 21:00 .021 4.6 10.1 5.5 22:00 .015 C 4.8 11.7 6.8 23:00 C 4.7 12.4 7.6 Average .026 6.9 13.8 6.8 Max .054 10.0 21.5 11.5 Max Hour 14:00 05:00 05:00 05:00 Min .001 3.6 7.8 4.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 12-Jul-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 12-Jul-2025 22:50:00 23:50:00 0.066 0.07 -4.82% Date Printed: 7/13/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 7/12/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .023 .0 4.0 4.0 .2 01:00 .021 .0 4.1 4.2 .1 02:00 .015 .1 5.1 5.3 .1 03:00 .008 .2 5.0 5.2 .0 04:00 .005 .2 4.6 4.9 .0 05:00 .004 .9 6.9 7.8 .0 06:00 .013 1.2 5.5 6.8 .1 07:00 .025 1.3 5.3 6.7 .1 08:00 .037 1.1 4.5 5.6 .1 09:00 .047 .2 2.7 2.9 .1 10:00 .055 .1 2.7 2.8 .0 11:00 .059 .0 2.9 3.0 .1 12:00 .059 .0 2.1 2.1 .1 13:00 .050 .0 1.5 1.5 .1 14:00 .050 .0 1.6 1.7 .1 15:00 .050 .0 C 1.8 C 1.8 C .1 16:00 .045 C C C .0 17:00 .031 .4 C 5.2 C 5.6 C .0 18:00 .028 .1 3.5 3.6 .0 19:00 .021 .0 4.8 4.9 .0 C 20:00 .016 .1 6.2 6.3 C 21:00 .014 .2 7.4 7.6 .1 C 22:00 .011 C .1 6.6 6.7 .0 23:00 C .1 6.5 6.6 .0 Average .029 .2 4.3 4.6 .0 Max .059 1.3 7.4 7.8 .2 Max Hour 12:00 07:00 21:00 05:00 00:00 Min .004 .0 1.5 1.5 .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 12-Jul-2025 15:46:00 16:11:00 65.2 70 -6.79% GPT-PS 12-Jul-2025 15:46:00 16:18:00 0.4 0.0 .45 GPTZ 12-Jul-2025 15:46:00 16:38:00 210.7 225 -6.32% GPT-PREC 12-Jul-2025 15:46:00 17:08:00 145.9 155 -5.85% NO2 GPT-PREC 12-Jul-2025 15:46:00 17:08:00 65.6 70 -6.28% NO2 Precision NO2_Diff PRECDIFF 12-Jul-2025 17:15:00 17:15:05 64.8 65.607 -1.18% NOx NOx_Auto NO-PREC 12-Jul-2025 15:46:00 16:11:00 65.6 70 -6.22% Ozone O3_Auto ZERO 12-Jul-2025 22:50:00 23:20:00 -0.003 0.0 0.00 PREC 12-Jul-2025 22:50:00 23:50:00 0.064 0.07 -7.81% SO2 SO2_Auto ZERO 12-Jul-2025 19:46:00 20:11:00 0 0.0 -.06 SPAN 12-Jul-2025 19:46:00 20:36:00 89.4 90 -.6% PREC 12-Jul-2025 19:46:00 21:01:00 39.8 40 -.41% Date Printed: 7/13/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 7/12/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 9.3 18.2 8.4 01:00 9.6 18.9 8.7 02:00 9.7 18.1 7.9 03:00 10.2 21.1 10.4 04:00 10.6 23.1 11.9 05:00 11.0 22.9 11.4 06:00 10.2 19.0 8.2 07:00 9.8 18.0 7.5 08:00 9.1 18.0 8.0 09:00 7.8 14.6 6.1 10:00 7.8 15.2 6.6 11:00 7.9 14.9 6.2 12:00 7.8 14.7 6.1 13:00 7.1 13.2 5.3 14:00 7.2 13.4 5.4 15:00 6.8 13.0 5.5 16:00 5.8 17.1 10.7 17:00 5.3 17.7 11.9 18:00 4.3 12.2 7.5 19:00 4.5 12.9 8.0 20:00 4.9 16.2 10.8 21:00 5.0 15.5 10.2 22:00 5.8 17.7 11.4 23:00 6.2 21.0 14.3 Average 7.6 16.9 8.6 Max 11.0 23.1 14.3 Max Hour 05:00 04:00 23:00 Min 4.3 12.2 5.3 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.41% Date Printed: 7/13/2025 01:30 Daily Summary Report Site: Union Cross 7/12/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time ppm DegC DegC MPH DEG PERCENT mmHg 00:00 .016 23.8 22.7 2.6 223 94.6 737.4 01:00 .015 B 23.6 22.5 2.3 227 94.2 737.1 02:00 .010 23.1 22.4 1.1 152 96.2 736.9 03:00 .004 22.5 22.2 1.2 155 98.2 736.9 04:00 .002 22.2 22.1 1.3 183 99.2 737.1 05:00 .005 22.4 22.3 2.7 204 99.5 737.5 06:00 .010 23.0 22.8 2.9 214 98.5 737.8 07:00 .021 25.4 22.8 1.9 208 87.0 738.0 08:00 .033 27.5 22.9 1.9 243 76.3 738.3 09:00 .037 28.8 23.1 2.5 188 70.8 738.3 10:00 .041 29.6 22.5 3.0 181 63.9 738.2 11:00 .046 30.4 22.3 3.1 211 59.5 738.1 12:00 .044 30.8 22.9 3.6 176 60.1 737.7 13:00 .050 B 31.5 22.9 3.7 164 57.0 737.3 14:00 .053 31.3 23.2 4.2 185 59.1 736.7 15:00 .048 31.6 22.8 3.8 202 56.0 736.5 16:00 .047 29.6 21.8 4.2 197 60.7 736.5 17:00 .042 27.2 21.2 3.1 210 69.8 736.6 18:00 .040 26.5 21.3 2.4 209 73.8 736.9 19:00 .037 26.0 21.2 3.2 87 75.9 737.2 20:00 .031 25.2 20.9 1.2 248 78.4 737.3 21:00 .022 24.1 21.3 1.3 191 85.8 737.6 22:00 .018 C 23.7 21.6 1.4 170 88.9 737.7 23:00 C 23.5 21.5 1.1 151 89.7 737.4 Average .029 26.3 22.2 2.1 193 78.8 737.3 Max .053 31.6 23.2 4.2 248 99.5 738.3 Max Hour 14:00 15:00 14:00 16:00 20:00 05:00 09:00 Min .002 22.2 20.9 1.1 87 56.0 736.5 Count 23 24 24 24 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 12-Jul-2025 22:50:00 23:20:00 0.0008 0.0 0.00 PREC 12-Jul-2025 22:50:00 23:50:00 0.0746 0.069 7.73% 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