Date Printed: 4/1/2026 10:01 Daily Summary Report Site: Clemmons Middle 4/1/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .035 7.6 19.8 12.2 01:00 .032 8.6 19.5 10.8 02:00 .031 11.8 22.1 10.2 03:00 .030 15.7 26.7 10.9 04:00 .029 17.9 28.7 10.7 05:00 .026 18.3 29.1 10.8 06:00 .023 18.0 31.7 13.7 07:00 .023 17.5 32.6 15.0 08:00 .028 16.4 B 31.2 B 14.8 B 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .028 14.6 26.8 12.1 Max .035 18.3 32.6 15.0 Max Hour 00:00 05:00 07:00 07:00 Min .023 7.6 19.5 10.2 Count 9 9 9 9 Total Date Printed: 4/1/2026 10:01 Daily Summary Report Site: Hattie Avenue (A) 4/1/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .031 .1 3.5 3.6 .1 01:00 .030 .1 3.3 3.4 .0 02:00 .029 .1 4.2 4.4 .0 03:00 .024 .1 7.8 8.0 .1 04:00 .025 .1 5.2 5.4 .0 05:00 .022 .2 5.2 5.4 .0 06:00 .018 .6 B 7.5 B 8.1 B .0 07:00 .020 B B B .0 08:00 .024 B B B .1 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .024 .1 5.2 5.4 .0 Max .031 .6 7.8 8.1 .1 Max Hour 00:00 06:00 03:00 06:00 08:00 Min .018 .1 3.3 3.4 .0 Count 9 7 7 7 9 Total Date Printed: 4/1/2026 10:01 Daily Summary Report Site: Hattie Avenue (B) 4/1/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.8 18.4 10.6 01:00 11.3 21.9 10.5 02:00 17.1 27.7 10.5 03:00 20.6 32.1 11.5 04:00 20.2 31.0 10.8 05:00 19.9 31.6 11.8 06:00 19.1 29.6 10.5 07:00 18.4 30.6 12.2 08:00 17.7 30.3 12.5 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 16.9 28.1 11.2 Max 20.6 32.1 12.5 Max Hour 03:00 03:00 08:00 Min 7.8 18.4 10.5 Count 9 9 9 Total Date Printed: 4/1/2026 10:01 Daily Summary Report Site: Union Cross 4/1/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .035 739.7 64.1 55.7 01:00 .034 739.6 63.2 55.7 02:00 .031 739.7 61.8 55.9 03:00 .030 739.5 60.7 56.4 04:00 .030 739.6 60.3 57.0 05:00 .029 739.9 60.3 57.6 06:00 .024 740.4 59.8 57.8 07:00 .023 B 740.9 61.1 58.2 08:00 .028 741.1 63.5 58.9 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .029 740.0 61.6 57.0 Max .035 741.1 64.1 58.9 Max Hour 00:00 08:00 00:00 08:00 Min .023 739.5 59.8 55.7 Count 9 9 9 9 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