Date Printed: 5/20/2026 15:01 Daily Summary Report Site: Clemmons Middle 5/20/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .033 10.6 21.6 10.9 01:00 .030 9.7 16.5 6.8 02:00 .028 9.8 18.3 8.5 03:00 .028 10.1 19.2 9.0 04:00 .029 B 10.0 17.6 7.5 05:00 .029 10.4 18.1 7.7 06:00 .030 11.1 26.3 15.1 07:00 .035 10.8 20.2 9.3 08:00 .044 11.7 21.2 9.4 09:00 .052 12.2 22.1 9.8 10:00 .056 11.7 20.0 8.3 11:00 .059 11.7 20.6 8.8 12:00 .060 11.1 18.5 7.3 13:00 .065 10.9 23.3 12.3 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .041 10.8 20.2 9.3 Max .065 12.2 26.3 15.1 Max Hour 13:00 09:00 06:00 06:00 Min .028 9.7 16.5 6.8 Count 14 14 14 14 Total Date Printed: 5/20/2026 15:01 Daily Summary Report Site: Hattie Avenue (A) 5/20/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .038 .1 6.7 6.9 -.1 01:00 .033 .2 8.2 8.4 -.1 02:00 .030 .2 8.2 8.4 -.1 03:00 .034 .2 6.2 6.4 .0 04:00 .033 .2 7.4 7.7 .0 05:00 .030 .4 9.8 10.3 .2 06:00 .032 .9 8.4 9.4 .6 07:00 .036 1.1 6.4 7.6 .5 08:00 .044 .7 5.0 5.8 .2 09:00 .053 .4 3.6 4.0 .1 D 10:00 .054 .3 2.9 3.2 D 11:00 .056 .3 2.7 3.1 D 12:00 .059 .2 2.3 2.5 .0 13:00 .062 .1 2.1 2.3 .1 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .042 .3 5.7 6.1 .1 Max .062 1.1 9.8 10.3 .6 Max Hour 13:00 07:00 05:00 05:00 06:00 Min .030 .1 2.1 2.3 -.1 Count 14 14 14 14 12 Total Date Printed: 5/20/2026 15:01 Daily Summary Report Site: Hattie Avenue (B) 5/20/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 10.7 20.4 9.3 01:00 13.5 22.4 8.6 02:00 13.0 22.2 8.9 03:00 11.0 22.1 10.7 04:00 10.6 22.3 11.3 05:00 10.9 23.5 12.3 06:00 11.3 20.8 9.2 07:00 11.8 21.6 9.2 08:00 12.1 22.9 10.0 09:00 12.7 B 24.3 B 10.6 B 10:00 B B B 11:00 12.5 25.9 12.1 12:00 11.9 23.6 10.3 13:00 11.2 24.5 11.8 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average 11.7 22.8 10.3 Max 13.5 25.9 12.3 Max Hour 01:00 11:00 05:00 Min 10.6 20.4 8.6 Count 13 13 13 Total Date Printed: 5/20/2026 15:01 Daily Summary Report Site: Union Cross 5/20/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .031 740.0 71.9 58.7 01:00 .036 739.8 71.1 58.5 02:00 .036 739.5 69.6 58.4 03:00 .034 739.3 67.9 58.6 04:00 .034 739.1 66.9 59.1 05:00 .033 739.1 66.0 59.5 06:00 .032 D 739.6 67.4 60.7 07:00 D 739.9 71.4 62.0 08:00 D 739.8 75.5 63.2 09:00 .051 739.6 80.1 64.3 10:00 .052 739.3 83.5 65.1 11:00 .052 738.9 85.6 66.0 12:00 .053 738.3 87.1 66.0 13:00 .057 737.8 89.0 66.2 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Average .041 739.2 75.2 61.8 Max .057 740.0 89.0 66.2 Max Hour 13:00 00:00 13:00 13:00 Min .031 737.8 66.0 58.4 Count 12 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