Date Printed: 6/24/2025 01:30 Daily Summary Report Site: Clemmons Middle 6/23/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .016 12.8 20.7 7.8 01:00 .015 13.3 21.1 7.8 02:00 .008 13.5 22.0 8.5 03:00 .008 13.8 21.6 7.7 04:00 .009 14.0 20.7 6.7 05:00 .004 13.4 20.2 6.8 06:00 .004 16.5 29.5 12.9 07:00 .017 12.5 26.5 13.8 08:00 .032 11.0 18.6 7.6 09:00 .039 10.2 17.2 6.9 10:00 .040 10.1 18.2 8.0 11:00 .039 10.5 19.1 8.5 12:00 .038 10.9 20.4 9.5 13:00 .040 10.9 20.0 9.1 14:00 .040 11.3 32.7 21.3 15:00 .049 11.3 23.3 12.0 16:00 .057 11.5 20.2 8.6 17:00 .055 11.0 22.6 11.6 18:00 .054 14.6 25.7 11.0 19:00 .039 11.6 22.2 10.6 20:00 .035 13.3 42.6 29.2 21:00 .020 18.4 76.0 57.5 22:00 .017 C 16.2 49.1 32.9 23:00 C 14.2 32.8 18.6 Average .029 12.7 26.7 13.9 Max .057 18.4 76.0 57.5 Max Hour 16:00 21:00 21:00 21:00 Min .004 10.1 17.2 6.7 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 23-Jun-2025 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 23-Jun-2025 22:50:00 23:50:00 0.066 0.07 -5.69% Date Printed: 6/24/2025 01:30 Daily Summary Report Site: Hattie Avenue (A) 6/23/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .037 .0 3.2 3.2 .2 01:00 .031 .0 4.4 4.5 .1 02:00 .027 .0 5.5 5.6 .1 03:00 .020 .1 6.2 6.4 .1 04:00 .017 .1 6.6 6.8 .1 05:00 .011 .8 10.2 11.0 .1 06:00 .017 1.3 7.7 9.0 .2 07:00 .026 .7 4.3 5.1 .1 08:00 .034 .4 3.2 3.7 .2 09:00 .043 .3 3.3 3.7 .2 10:00 .048 .1 2.8 2.9 .2 11:00 .039 .1 1.5 1.6 .1 12:00 .038 .0 1.0 1.0 .1 13:00 .042 .0 1.5 1.6 .2 14:00 .048 .0 1.7 1.8 .3 15:00 .064 .0 C 2.6 C 2.7 C .7 16:00 .064 C C C .6 17:00 .069 .0 C 3.7 C 3.8 C .9 18:00 .066 .0 4.4 4.3 .9 19:00 .043 .0 4.6 4.5 .5 20:00 .037 .0 7.0 7.1 C 21:00 .035 .1 7.4 7.5 .2 C 22:00 .031 C .1 6.8 6.9 .2 23:00 C .2 9.4 9.6 .2 Average .038 .1 4.7 4.9 .2 Max .069 1.3 10.2 11.0 .9 Max Hour 17:00 06:00 05:00 05:00 18:00 Min .011 .0 1.0 1.0 .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 23-Jun-2025 15:46:00 16:11:00 65.4 70 -6.55% GPT-PS 23-Jun-2025 15:46:00 16:18:00 0.3 0.0 .3 GPTZ 23-Jun-2025 15:46:00 16:38:00 209.2 225 -6.99% GPT-PREC 23-Jun-2025 15:46:00 17:08:00 143.7 155 -7.28% NO2 GPT-PREC 23-Jun-2025 15:46:00 17:08:00 65.8 70 -5.96% NO2 Precision NO2_Diff PRECDIFF 23-Jun-2025 17:15:00 17:15:05 65.5 65.831 -.41% NOx NOx_Auto NO-PREC 23-Jun-2025 15:46:00 16:11:00 65.9 70 -5.77% Ozone O3_Auto ZERO 23-Jun-2025 22:50:00 23:20:00 -0.002 0.0 0.00 PREC 23-Jun-2025 22:50:00 23:50:00 0.065 0.07 -6.06% SO2 SO2_Auto ZERO 23-Jun-2025 20:00:00 20:20:00 0 0.0 .06 SPAN 23-Jun-2025 20:00:00 20:40:00 83.5 90 -7.11% PREC 23-Jun-2025 20:00:00 21:00:00 37.2 40 -6.78% Date Printed: 6/24/2025 01:30 Daily Summary Report Site: Hattie Avenue (B) 6/23/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.7 12.2 4.0 01:00 8.0 12.5 4.1 02:00 8.5 13.1 4.2 03:00 8.5 12.8 4.0 04:00 8.7 12.7 3.7 05:00 8.5 12.9 4.1 06:00 7.7 12.2 4.1 07:00 6.4 10.5 3.8 08:00 5.9 10.5 4.1 09:00 6.5 11.9 4.8 10:00 7.0 14.5 6.7 11:00 6.3 12.1 5.1 12:00 6.1 11.1 4.3 13:00 6.9 13.9 6.1 14:00 6.7 12.2 4.7 15:00 7.1 12.7 4.7 16:00 7.2 12.4 4.3 17:00 7.8 13.3 4.7 18:00 8.1 13.2 4.3 19:00 7.6 12.8 4.5 20:00 7.5 12.4 4.3 21:00 8.2 13.5 4.8 22:00 8.3 13.6 4.9 23:00 8.3 13.2 4.5 Average 7.4 12.5 4.5 Max 8.7 14.5 6.7 Max Hour 04:00 10:00 10:00 Min 5.9 10.5 3.7 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -6.78% Date Printed: 6/24/2025 01:30 Daily Summary Report Site: Union Cross 6/23/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time ppm DegC DegC MPH DEG PERCENT mmHg 00:00 .024 25.1 20.6 1.9 233 77.1 740.7 01:00 .028 24.6 20.3 2.1 235 78.4 740.5 02:00 .022 23.7 20.5 1.9 230 84.1 740.5 03:00 .022 23.2 20.5 2.6 229 86.6 740.5 04:00 .020 22.9 20.5 2.3 229 87.8 740.6 05:00 .019 22.7 20.6 1.8 240 89.4 741.1 06:00 .020 23.8 21.0 2.4 251 85.9 741.5 07:00 .023 25.8 21.8 2.4 244 79.5 742.0 08:00 .035 28.2 22.2 2.9 276 69.8 742.0 09:00 .047 30.2 22.3 4.0 274 60.0 741.9 10:00 .047 31.4 23.0 4.1 227 57.6 741.7 11:00 .039 32.2 23.0 6.2 105 54.0 741.4 12:00 .042 32.8 23.1 6.1 71 51.1 741.3 13:00 .050 33.3 22.9 4.8 103 48.1 741.0 14:00 .046 34.2 23.3 3.2 177 45.2 740.7 15:00 .044 34.1 23.4 4.0 103 45.8 740.5 16:00 .045 33.8 23.0 2.6 91 45.8 740.5 17:00 .041 33.0 23.2 1.5 108 50.7 740.5 18:00 .040 33.5 23.6 1.2 107 50.5 740.3 19:00 .038 32.0 23.7 .8 164 58.4 740.5 20:00 .035 30.0 23.5 .8 181 66.9 740.5 21:00 .027 27.8 23.3 .5 155 77.2 740.9 22:00 .026 C 26.6 23.2 .5 198 82.9 740.7 23:00 C 26.0 23.2 .5 216 86.0 740.6 Average .033 28.7 22.3 .8 176 67.4 740.9 Max .050 34.2 23.7 6.2 276 89.4 742.0 Max Hour 13:00 14:00 19:00 11:00 08:00 05:00 08:00 Min .019 22.7 20.3 .5 71 45.2 740.3 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 23-Jun-2025 22:50:00 23:20:00 -0.0008 0.0 0.00 PREC 23-Jun-2025 22:50:00 23:50:00 0.0689 0.07 -1.47% 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