Date Printed: 3/16/2025 02:00 Daily Summary Report Site: Clemmons Middle 3/15/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time PPM µg/m3 µg/m3 µg/m3 00:00 .032 26.2 34.0 7.8 01:00 .031 24.8 32.1 7.2 02:00 .030 24.0 33.4 9.4 03:00 .029 23.9 34.0 10.0 04:00 .030 24.0 34.5 10.5 05:00 .027 24.0 32.8 8.8 06:00 .024 18.9 23.2 4.3 07:00 .022 16.0 19.2 3.2 08:00 .021 14.3 17.1 2.8 09:00 .024 13.5 16.5 2.9 10:00 .029 10.3 13.2 2.8 11:00 .029 9.9 13.3 3.3 12:00 .029 10.4 13.8 3.3 13:00 .030 10.5 13.8 3.3 14:00 .031 11.1 14.8 3.7 15:00 .031 11.4 15.7 4.3 16:00 .034 11.6 15.8 4.1 17:00 .034 13.4 18.8 5.3 18:00 .031 16.6 22.4 5.8 19:00 .029 17.4 24.8 7.4 20:00 .030 15.8 22.5 6.6 21:00 .036 10.0 16.4 6.4 22:00 .039 C 6.2 12.6 6.4 23:00 C 5.1 11.3 6.2 Average .029 15.3 21.0 5.6 Max .039 26.2 34.5 10.5 Max Hour 22:00 00:00 04:00 04:00 Min .021 5.1 11.3 2.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 15-Mar-2025 22:50:00 23:20:00 -0.0006 0.0 0.00 PREC 15-Mar-2025 22:50:00 23:50:00 0.0684 0.07 -2% Date Printed: 3/16/2025 02:00 Daily Summary Report Site: Hattie Avenue (A) 3/15/2025 Interval: 001h Ozone Ozone: Calibrator NO NO2 NOx SO2 Time PPM PPM PPB PPB PPB PPB 00:00 .032 0 .0 2.9 3.0 .0 01:00 .031 0 .0 2.5 2.5 .0 02:00 .032 0 .0 2.2 2.3 .0 03:00 .032 0 .0 2.1 2.2 .0 04:00 .031 0 .0 2.1 2.2 .0 05:00 .027 0 .0 2.1 2.2 .0 06:00 .022 0 .5 2.4 2.9 .0 07:00 .021 0 .1 2.9 3.0 .0 08:00 .022 0 .3 3.1 3.4 .0 09:00 .025 0 1.0 3.6 4.7 .0 10:00 .028 0 .4 2.9 3.4 .0 11:00 .029 0 .6 2.9 3.6 .0 12:00 .033 0 .6 2.7 3.4 .0 13:00 .034 0 .3 2.5 2.9 .0 14:00 .031 0 .4 C 2.8 C 3.2 C .0 15:00 .031 0.0073 C C C .0 16:00 .036 0 .4 C 2.0 C 2.4 C .0 17:00 .036 0 .1 2.1 2.3 .0 18:00 .030 0 .0 2.8 2.8 .0 19:00 .025 0 .0 4.4 4.5 .0 C 20:00 .028 0 .0 3.8 3.9 C 21:00 .038 0 .0 1.9 1.9 .1 22:00 .040 C 0 .0 1.1 1.1 .1 23:00 C 0.0344 .1 .9 1.0 .1 Average .030 0.0017 .2 2.5 2.8 .0 Max .040 0.0344 1.0 4.4 4.7 .1 Max Hour 22:00 23:00 09:00 19:00 09:00 23:00 Min .021 0 .0 .9 1.0 .0 Count 23 24 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOXAUTO NOPREC 15-Mar-2025 14:46:00 15:11:00 68.3 70 -2.33% GPTPS 15-Mar-2025 14:46:00 15:18:00 0.5 0.0 .54 GPTZ 15-Mar-2025 14:46:00 15:38:00 216.6 225 -3.69% GPTPREC 15-Mar-2025 14:46:00 16:08:00 145.6 155 -6.06% NO2 GPTPREC 15-Mar-2025 14:46:00 16:08:00 69.1 70 -1.26% NO2 Precision NO2DIFF PRECDIFF 15-Mar-2025 18:15:00 18:15:05 71 69.119 2.86% NOx NOXAUTO NOPREC 15-Mar-2025 14:46:00 15:11:00 68.1 70 -2.65% Ozone O3_Auto ZERO 15-Mar-2025 22:50:00 23:20:00 -0.0012 0.0 0.00 PREC 15-Mar-2025 22:50:00 23:50:00 0.0685 0.07 -1.88% SO2 SO2AUTO ZERO 15-Mar-2025 19:46:00 20:06:00 0 0.0 .01 SPAN 15-Mar-2025 19:46:00 20:26:00 84.7 89.8 -5.62% PREC 15-Mar-2025 19:46:00 20:46:00 38.1 40 -4.58% Date Printed: 3/16/2025 02:00 Daily Summary Report Site: Hattie Avenue (B) 3/15/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time µg/m3 µg/m3 µg/m3 00:00 24.2 32.7 8.9 01:00 24.6 32.1 7.8 02:00 24.1 30.8 7.1 03:00 23.3 30.6 7.6 04:00 23.8 32.6 9.2 05:00 22.4 28.7 6.7 06:00 17.2 20.1 3.2 07:00 15.1 17.3 2.5 08:00 13.0 15.4 2.6 09:00 11.7 15.1 3.6 10:00 10.6 13.4 2.8 11:00 10.7 13.4 2.8 12:00 12.3 16.1 3.8 13:00 13.8 18.5 4.7 14:00 13.8 18.8 5.0 15:00 12.0 16.2 4.1 16:00 13.3 19.1 5.5 17:00 15.4 22.7 7.1 18:00 17.6 23.7 6.0 19:00 19.0 25.4 6.2 20:00 17.6 25.3 7.5 21:00 10.4 18.3 7.6 22:00 6.5 16.0 9.2 23:00 5.7 13.5 7.6 Average 15.7 21.4 5.7 Max 24.6 32.7 9.2 Max Hour 01:00 00:00 22:00 Min 5.7 13.4 2.5 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.58% Date Printed: 3/16/2025 02:00 Daily Summary Report Site: Union Cross 3/15/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time PPM DEGC DEGC MPH DEG PERCENT mmHg 00:00 .027 10.6 8.5 4.2 166 89.1 735.7 01:00 .028 10.4 8.9 3.9 168 91.9 735.4 02:00 .028 10.1 9.0 3.1 148 93.9 735.4 03:00 .027 9.9 9.1 2.7 149 96.0 735.2 04:00 .025 9.7 9.3 2.3 130 97.8 735.7 05:00 .021 9.4 9.5 2.7 114 99.9 735.9 06:00 .019 9.4 9.4 1.6 145 100.0 736.3 07:00 .017 9.7 9.7 2.6 126 100.0 736.4 08:00 .019 10.3 10.4 2.7 134 100.0 736.6 09:00 .020 11.1 11.2 2.4 138 100.0 736.7 10:00 .023 11.9 12.0 2.1 156 100.0 737.2 11:00 .029 12.9 12.5 3.0 175 97.8 736.9 12:00 .030 13.5 12.5 3.4 170 94.8 736.5 13:00 .029 13.8 12.8 3.4 157 94.6 735.8 14:00 .024 13.7 13.4 4.1 153 98.1 735.0 15:00 .027 15.2 13.5 4.4 154 91.1 734.1 16:00 .032 16.2 13.6 4.2 151 86.8 733.5 17:00 .030 15.9 13.8 4.7 117 89.2 733.1 18:00 .025 15.5 13.8 3.6 121 91.2 733.0 19:00 .026 16.1 13.9 3.4 136 88.9 733.1 20:00 .029 16.9 13.8 3.9 150 84.4 733.2 21:00 .037 17.6 13.1 6.2 164 77.2 732.6 22:00 .038 C 17.6 13.0 6.4 188 76.8 732.6 23:00 C 17.7 14.0 7.8 188 81.1 732.3 Average .026 13.1 11.7 3.4 154 92.5 734.9 Max .038 17.7 14.0 7.8 188 100.0 737.2 Max Hour 22:00 23:00 23:00 23:00 23:00 10:00 10:00 Min .017 9.4 8.5 1.6 114 76.8 732.3 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 15-Mar-2025 22:50:00 23:20:00 -0.0009 0.0 0.00 PREC 15-Mar-2025 22:50:00 23:50:00 0.0696 0.07 -1.02% 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