Date Printed: 6/20/2025 01:30 Daily Summary Report Site: Clemmons Middle 6/19/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .006 5.1 14.7 9.5 01:00 .009 6.3 17.0 10.7 02:00 .005 6.5 17.8 11.3 03:00 .005 6.7 18.7 11.9 04:00 .009 7.4 18.8 11.3 05:00 .010 7.0 17.5 10.4 06:00 .012 6.4 13.9 7.4 07:00 .018 6.4 12.2 5.8 08:00 .024 6.5 12.7 6.1 09:00 .034 6.1 12.5 6.3 10:00 .038 6.5 13.0 6.4 11:00 .043 6.9 13.9 6.9 12:00 .046 6.7 13.9 7.2 13:00 .041 6.8 16.0 9.1 14:00 .042 6.7 18.5 11.8 15:00 .028 3.8 10.3 6.4 16:00 .029 3.7 30.3 26.5 17:00 .027 3.3 24.6 21.2 18:00 .022 3.4 15.0 11.6 19:00 .015 3.5 15.1 11.5 20:00 .008 3.6 16.8 13.2 21:00 .006 3.9 15.9 12.0 22:00 .006 C 4.6 18.0 13.4 23:00 C 4.8 17.3 12.5 Average .021 5.5 16.4 10.8 Max .046 7.4 30.3 26.5 Max Hour 12:00 04:00 16:00 16:00 Min .005 3.3 10.3 5.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 19-Jun-2025 22:50:00 23:20:00 0 0.0 0.00 PREC 19-Jun-2025 22:50:00 23:50:00 0.066 0.07 -5.08% Date Printed: 6/20/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 6/19/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .021 .0 3.4 3.5 .1 01:00 .017 .1 3.5 3.6 .1 02:00 .015 .1 4.0 4.2 .1 03:00 .012 .2 5.4 5.6 .1 04:00 .015 .2 5.7 5.9 .1 05:00 .015 .3 4.7 5.1 .1 06:00 .015 1.2 5.1 6.4 .2 07:00 D 1.0 3.6 4.6 .3 08:00 D 1.2 4.2 5.5 .3 09:00 .033 D .7 3.1 3.8 .4 10:00 .037 .2 2.1 2.4 .3 11:00 .044 .2 2.5 2.7 .3 12:00 .045 .1 2.3 2.5 .3 13:00 .043 .1 2.1 2.2 .3 14:00 .038 .1 2.2 2.3 .2 15:00 .027 .2 2.8 3.1 .1 16:00 .031 .0 2.7 2.7 .1 17:00 .028 .2 3.7 3.9 .1 18:00 .018 .8 7.3 8.2 .1 19:00 .014 .3 6.4 6.8 .1 20:00 .010 .1 8.2 8.4 .1 21:00 .008 .2 7.7 8.0 .1 22:00 .011 .1 4.2 4.4 .1 23:00 .017 .0 4.0 4.1 .1 Average .023 .3 4.2 4.5 .1 Max .045 1.2 8.2 8.4 .4 Max Hour 12:00 08:00 20:00 20:00 09:00 Min .008 .0 2.1 2.2 .1 Count 22 24 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO2 Precision NO2_Diff PRECDIFF 19-Jun-2025 17:15:00 17:15:05 65.2 65.734 -.78% Date Printed: 6/20/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 6/19/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 3.8 9.1 5.0 01:00 4.4 11.9 7.2 02:00 4.9 10.9 5.7 03:00 5.0 11.3 6.0 04:00 4.8 10.9 5.8 05:00 4.6 11.3 6.4 06:00 4.6 10.0 5.0 07:00 4.5 9.7 4.9 08:00 4.5 9.2 4.3 09:00 4.4 9.2 4.4 10:00 4.3 8.8 4.1 11:00 4.8 9.5 4.2 12:00 4.7 10.5 5.1 13:00 4.5 9.1 4.0 14:00 4.4 9.6 4.7 15:00 2.9 8.3 5.1 16:00 2.9 14.8 11.5 17:00 2.7 9.9 6.9 18:00 3.0 8.2 4.9 19:00 3.2 10.9 7.5 20:00 3.1 11.5 8.1 21:00 3.5 11.6 7.8 22:00 3.8 12.2 8.1 23:00 3.9 14.0 9.8 Average 4.0 10.5 6.1 Max 5.0 14.8 11.5 Max Hour 03:00 16:00 16:00 Min 2.7 8.2 4.0 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.78% Date Printed: 6/20/2025 01:30 Daily Summary Report Site: Union Cross 6/19/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time ppm DegC DegC MPH DEG PERCENT mmHg 00:00 .018 22.2 20.4 3.2 237 90.9 737.3 01:00 .020 22.3 20.1 3.9 229 88.9 736.9 02:00 .019 22.2 20.1 O 4.0 233 89.2 O 736.8 03:00 .016 22.0 20.1 3.6 228 90.3 736.5 04:00 .018 21.7 20.0 O 3.6 233 91.5 O 736.6 05:00 .016 21.5 20.2 3.4 227 93.3 736.9 06:00 .017 B 22.9 20.6 4.1 227 88.4 737.0 07:00 .024 24.6 20.9 6.7 236 81.2 737.0 08:00 .029 25.3 20.8 6.5 240 77.5 736.8 09:00 .035 26.7 21.0 6.5 236 71.2 736.6 10:00 .040 27.8 21.0 6.4 238 65.8 736.5 11:00 .038 28.7 21.4 7.0 239 63.4 736.1 12:00 .036 29.5 21.4 7.8 236 59.4 735.6 13:00 .035 29.9 21.5 9.0 238 57.7 735.1 14:00 .039 30.2 21.4 9.1 237 55.6 734.5 15:00 .032 27.6 20.1 6.0 244 62.2 734.4 16:00 .031 22.0 19.9 4.5 253 89.2 734.8 17:00 .028 22.0 20.6 2.5 255 92.7 734.6 18:00 .024 23.0 21.0 2.8 231 89.9 734.6 19:00 .019 22.3 20.8 1.9 222 92.3 735.0 20:00 .015 21.8 21.0 1.3 227 95.7 735.5 21:00 .009 21.7 21.2 2.1 205 97.3 735.8 22:00 .008 C 21.8 21.4 1.6 224 97.9 736.1 23:00 C 21.6 20.3 2.1 299 92.8 736.3 Average .024 24.2 20.7 4.4 236 82.2 735.9 Max .040 30.2 21.5 9.1 299 97.9 737.3 Max Hour 10:00 14:00 13:00 14:00 23:00 22:00 00:00 Min .008 21.5 19.9 1.3 205 55.6 734.4 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 19-Jun-2025 22:50:00 23:20:00 -0.0014 0.0 0.00 PREC 19-Jun-2025 22:50:00 23:50:00 0.0686 0.07 -1.84% 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