Date Printed: 12/23/2025 14:01 Daily Summary Report Site: Clemmons Middle 12/23/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 B 9.7 16.1 6.3 01:00 B 7.0 13.5 6.4 02:00 B 4.8 9.4 4.5 03:00 B 5.0 9.5 4.5 04:00 B 5.2 9.7 4.5 05:00 B 4.8 9.5 4.7 06:00 B 4.5 9.0 4.5 07:00 B 4.4 11.6 7.2 08:00 B 4.5 9.3 4.7 09:00 B 4.8 9.5 4.7 10:00 B 5.0 11.1 6.1 11:00 B 5.4 12.5 7.0 12:00 B 5.7 13.6 7.8 13:00 B 6.0 15.0 8.9 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 5.4 11.3 5.8 Max B 9.7 16.1 8.9 Max Hour 00:00 00:00 13:00 Min B 4.4 9.0 4.5 Count 0 14 14 14 Total Date Printed: 12/23/2025 14:01 Daily Summary Report Site: Hattie Avenue (A) 12/23/2025 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 B .2 8.1 8.3 .0 01:00 B .2 4.3 4.5 .1 02:00 B .2 4.7 4.9 .7 03:00 B .2 4.1 4.3 .0 04:00 B .2 4.9 5.2 .0 05:00 B .2 6.1 6.3 .0 06:00 B .4 7.3 7.8 .0 07:00 B .4 8.8 9.2 .0 08:00 B .9 9.3 10.2 .2 09:00 B 1.1 8.2 9.3 .2 10:00 B 1.9 6.7 8.7 .3 11:00 B 1.3 5.9 7.3 .2 12:00 B 1.0 5.7 6.7 .1 13:00 B 1.0 5.1 6.1 .0 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .6 6.3 7.0 .1 Max B 1.9 9.3 10.2 .7 Max Hour 10:00 08:00 08:00 02:00 Min B .2 4.1 4.3 .0 Count 0 14 14 14 14 Total Date Printed: 12/23/2025 14:01 Daily Summary Report Site: Hattie Avenue (B) 12/23/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.1 11.4 4.8 01:00 6.4 12.0 6.1 02:00 5.5 10.2 5.1 03:00 4.6 8.7 4.5 04:00 4.8 8.3 3.9 05:00 4.4 7.3 3.1 06:00 4.5 8.9 4.7 07:00 4.4 9.2 5.2 08:00 5.3 10.9 6.0 09:00 5.0 B 9.6 B 4.9 B 10:00 B B B 11:00 5.7 B 11.4 B 5.7 B 12:00 6.1 14.9 8.8 13:00 6.3 14.9 8.4 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 5.3 10.5 5.4 Max 7.1 14.9 8.8 Max Hour 00:00 13:00 12:00 Min 4.4 7.3 3.1 Count 13 13 13 Total Date Printed: 12/23/2025 14:01 Daily Summary Report Site: Union Cross 12/23/2025 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 B 745.4 41.8 18.4 01:00 B 744.9 42.4 18.9 02:00 B 744.6 43.0 19.4 03:00 B 744.4 43.3 21.1 04:00 B 743.6 42.9 21.4 05:00 B 743.3 43.4 21.0 06:00 B 742.9 44.1 21.4 07:00 B 742.9 45.0 22.1 08:00 B 742.8 45.9 23.0 09:00 B 742.6 47.5 24.3 10:00 B 742.2 50.6 26.9 11:00 B 741.4 55.6 31.7 12:00 B 740.5 59.4 35.9 13:00 B 739.6 62.8 40.0 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 742.9 47.6 24.6 Max B 745.4 62.8 40.0 Max Hour 00:00 13:00 13:00 Min B 739.6 41.8 18.4 Count 0 14 14 14 Total 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