Date Printed: 6/30/2025 01:30 Daily Summary Report Site: Clemmons Middle 6/29/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .002 10.1 20.5 10.3 01:00 .001 9.1 19.3 10.2 02:00 .001 8.6 17.8 9.2 03:00 .002 7.9 17.8 9.9 04:00 .001 7.8 15.8 8.0 05:00 .001 7.6 17.3 9.6 06:00 .005 6.9 15.0 8.1 07:00 .012 7.6 15.2 7.6 08:00 .026 7.0 12.5 5.4 09:00 .034 7.1 13.3 6.2 10:00 .040 7.4 12.5 5.1 11:00 .044 7.2 12.1 4.9 12:00 .046 7.2 11.3 4.1 13:00 .044 7.9 12.1 4.2 14:00 .045 7.9 12.4 4.5 15:00 .042 7.7 12.5 4.7 16:00 .052 9.4 27.9 18.4 17:00 .047 4.3 10.2 5.9 18:00 .044 4.8 8.6 3.8 19:00 .037 5.0 9.7 4.6 20:00 .027 5.2 10.8 5.5 21:00 .022 5.5 10.2 4.6 22:00 .017 C 5.9 11.6 5.6 23:00 C 5.9 11.7 5.7 Average .025 7.1 14.0 6.9 Max .052 10.1 27.9 18.4 Max Hour 16:00 00:00 16:00 16:00 Min .001 4.3 8.6 3.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 29-Jun-2025 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 29-Jun-2025 22:50:00 23:50:00 0.066 0.07 -4.63% Date Printed: 6/30/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 6/29/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .010 .3 10.6 10.9 .1 01:00 .005 .6 10.7 11.3 .1 02:00 .006 .4 9.6 10.1 .1 03:00 .013 .3 6.2 6.5 .1 04:00 .012 .2 5.3 5.5 .1 05:00 .008 .6 5.9 6.5 .1 06:00 .012 1.0 4.1 5.1 .2 07:00 .019 .8 2.8 3.7 .1 08:00 .029 .4 2.2 2.6 .2 09:00 .039 .2 1.8 2.1 .1 10:00 .046 .0 1.4 1.5 .1 11:00 .049 .0 1.3 1.3 .1 12:00 .051 .0 1.2 1.2 .1 13:00 .049 .0 1.6 1.6 .2 14:00 .056 .0 2.1 2.2 .2 15:00 .054 .0 C 1.8 C 1.8 C .2 16:00 .049 C C C .2 17:00 .048 .1 C 3.3 C 3.5 C .1 18:00 .038 .2 5.0 5.3 .1 19:00 .035 .0 4.7 4.8 .1 20:00 .035 .0 4.9 5.0 C 21:00 .032 .0 4.7 4.7 .2 C 22:00 .024 C .1 5.9 6.0 .2 23:00 C .2 6.8 7.0 .1 Average .031 .2 4.5 4.7 .1 Max .056 1.0 10.7 11.3 .2 Max Hour 14:00 06:00 01:00 01:00 22:00 Min .005 .0 1.2 1.2 .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 29-Jun-2025 15:46:00 16:11:00 65.4 70 -6.43% GPT-PS 29-Jun-2025 15:46:00 16:18:00 0.3 0.0 .38 GPTZ 29-Jun-2025 15:46:00 16:38:00 209.7 225 -6.78% GPT-PREC 29-Jun-2025 15:46:00 17:08:00 143.8 155 -7.21% NO2 GPT-PREC 29-Jun-2025 15:46:00 17:08:00 66.1 70 -5.47% NO2 Precision NO2_Diff PRECDIFF 29-Jun-2025 17:15:00 17:15:05 65.9 66.168 -.39% NOx NOx_Auto NO-PREC 29-Jun-2025 15:46:00 16:11:00 65.8 70 -5.88% Ozone O3_Auto ZERO 29-Jun-2025 22:50:00 23:20:00 -0.003 0.0 0.00 PREC 29-Jun-2025 22:50:00 23:50:00 0.064 0.07 -8.05% SO2 SO2_Auto ZERO 29-Jun-2025 20:00:00 20:20:00 0.1 0.0 .11 SPAN 29-Jun-2025 20:00:00 20:40:00 83.6 90 -7.02% PREC 29-Jun-2025 20:00:00 21:00:00 37.4 40 -6.49% Date Printed: 6/30/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 6/29/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 8.7 17.9 8.8 01:00 9.3 20.1 10.4 02:00 10.1 20.4 9.9 03:00 9.1 18.7 9.2 04:00 8.4 15.8 7.1 05:00 8.3 16.0 7.3 06:00 7.9 15.1 6.8 07:00 7.1 13.8 6.2 08:00 6.6 12.5 5.4 09:00 6.8 12.4 5.0 10:00 6.8 13.0 5.5 11:00 6.7 11.6 4.3 12:00 7.0 12.1 4.4 13:00 7.1 11.7 4.0 14:00 7.8 13.2 4.6 15:00 8.1 13.2 4.3 16:00 8.1 14.8 6.0 17:00 4.8 12.9 7.6 18:00 6.6 12.4 5.3 19:00 5.4 13.3 7.5 20:00 5.6 12.7 6.6 21:00 6.1 12.2 5.7 22:00 7.1 13.6 6.1 23:00 7.6 15.4 7.4 Average 7.3 14.3 6.4 Max 10.1 20.4 10.4 Max Hour 02:00 02:00 01:00 Min 4.8 11.6 4.0 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -6.49% Date Printed: 6/30/2025 01:30 Daily Summary Report Site: Union Cross 6/29/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time ppm DegC DegC MPH DEG PERCENT mmHg 00:00 .002 21.3 21.0 1.2 110 97.9 738.1 01:00 .004 21.2 20.9 1.6 210 98.4 737.6 02:00 .003 20.9 20.8 1.7 220 98.9 737.3 03:00 .005 20.8 20.7 1.6 273 99.1 737.3 04:00 .007 20.6 20.6 1.6 238 99.3 737.5 05:00 .008 20.7 20.6 2.3 231 99.3 737.8 06:00 .015 21.8 21.1 2.6 245 95.7 738.0 07:00 .017 23.8 21.2 2.7 274 86.7 738.2 08:00 .028 26.0 21.3 3.5 279 75.9 738.3 09:00 .038 28.4 21.5 2.3 204 65.3 738.1 10:00 .045 29.4 21.2 2.8 175 58.6 738.1 11:00 .048 30.1 21.3 3.2 157 55.6 737.9 12:00 .050 30.7 21.5 2.6 124 53.8 737.5 13:00 .049 31.2 22.3 2.4 197 55.3 737.0 14:00 .047 31.4 22.5 2.2 219 55.2 736.6 15:00 .042 30.3 23.0 3.2 187 63.3 736.2 16:00 .040 28.3 23.4 3.3 207 75.5 736.0 17:00 .047 26.8 20.6 4.9 192 68.6 736.3 18:00 .048 25.2 19.9 2.6 152 73.2 736.1 19:00 .036 25.4 20.3 1.2 152 74.3 736.1 20:00 .036 24.6 20.3 2.2 178 78.1 736.8 21:00 .033 24.4 20.6 1.3 186 80.9 737.2 22:00 .029 C 23.9 20.6 1.7 172 83.3 737.3 23:00 C 23.8 20.7 2.5 216 84.2 736.9 Average .029 25.4 21.2 1.8 201 78.1 737.2 Max .050 31.4 23.4 4.9 279 99.3 738.3 Max Hour 12:00 14:00 16:00 17:00 08:00 05:00 08:00 Min .002 20.6 19.9 1.2 110 53.8 736.0 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 29-Jun-2025 22:50:00 23:20:00 -0.0006 0.0 0.00 PREC 29-Jun-2025 22:50:00 23:50:00 0.0697 0.07 -.04% 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