Date Printed: 4/13/2026 09:01 Daily Summary Report Site: Clemmons Middle 4/13/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .051 10.0 21.4 11.3 01:00 .050 8.6 16.6 7.9 02:00 .047 8.6 16.8 8.2 03:00 .044 9.5 17.2 7.7 04:00 .043 B 9.8 17.1 7.2 05:00 .041 9.0 18.1 9.1 06:00 .036 9.4 45.9 36.5 07:00 .037 6.8 23.3 16.5 08:00 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 .043 8.9 22.0 13.0 Max .051 10.0 45.9 36.5 Max Hour 00:00 00:00 06:00 06:00 Min .036 6.8 16.6 7.2 Count 8 8 8 8 Total Date Printed: 4/13/2026 09:01 Daily Summary Report Site: Hattie Avenue (A) 4/13/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .050 .0 2.2 2.3 .4 01:00 .048 .0 2.1 2.1 .6 02:00 .046 .1 2.4 2.5 .6 03:00 .044 .1 2.8 2.9 .5 04:00 .042 .1 3.2 3.3 .3 05:00 .039 .1 4.5 4.7 .1 06:00 .038 .2 4.8 5.0 .1 07:00 .037 .5 4.6 5.2 .1 08:00 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 .043 .1 3.3 3.5 .3 Max .050 .5 4.8 5.2 .6 Max Hour 00:00 07:00 06:00 07:00 02:00 Min .037 .0 2.1 2.1 .1 Count 8 8 8 8 8 Total Date Printed: 4/13/2026 09:01 Daily Summary Report Site: Hattie Avenue (B) 4/13/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 10.8 22.8 11.9 01:00 9.3 19.8 10.4 02:00 9.7 21.7 11.9 03:00 10.5 18.9 8.4 04:00 11.2 17.9 6.8 05:00 10.1 17.2 7.2 06:00 8.1 14.8 6.8 07:00 6.8 14.4 7.6 08:00 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 9.5 18.4 8.8 Max 11.2 22.8 11.9 Max Hour 04:00 00:00 02:00 Min 6.8 14.4 6.8 Count 8 8 8 Total Date Printed: 4/13/2026 09:01 Daily Summary Report Site: Union Cross 4/13/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .051 742.8 67.8 53.9 01:00 .049 742.7 66.4 53.3 02:00 .048 742.6 64.7 52.5 03:00 .046 742.7 63.2 52.1 04:00 .043 742.9 61.6 51.3 05:00 .043 743.3 60.9 51.0 06:00 .040 743.6 60.4 51.7 07:00 .039 743.9 61.7 53.0 08:00 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 .044 743.0 63.3 52.3 Max .051 743.9 67.8 53.9 Max Hour 00:00 07:00 00:00 00:00 Min .039 742.6 60.4 51.0 Count 8 8 8 8 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