Available Ambient Data by Site

To get the latest available ambient data for a particular site, select the County..Site from the drop-down list. The data will be displayed below once you have made your selection.

All current values and statistics are averages for one-hour durations, unless the name of the monitor indicates otherwise.
     

Date: 04/26/2024 (Change date) (or
 Raleigh, NC  27616


MonitorCurrent ReadingMinimumMaximumAverage/ TotalUnitStatusHour (EST)
Barometric pressure -- -- -- -- MBARS normal 5:00 - 5:59 AM
Carbon monoxide 149 136 149 144 PPB normal 5:00 - 5:59 AM
Nitrogen dioxide (NO2) 1.3 0.7 1.3 -- PPB normal 5:00 - 5:59 AM
Outdoor Temperature 47.9 47.9 50.2 48.62 DEGF normal 5:00 - 5:59 AM
Ozone 36 35 37 -- PPB normal 5:00 - 5:59 AM
PM10 Total 0-10um STP 15.0 15.0 21.1 -- UG/M3 normal 5:00 - 5:59 AM
PM10-2.5 - Local Conditions 8.3 8.3 12.7 -- UG/M3 normal 5:00 - 5:59 AM
PM2.5 - Local Conditions 7.5 7.5 9.8 -- UG/M3 normal 5:00 - 5:59 AM
Rain/melt precipitation
(total since midnight)		 -- -- -- 0.00 IN normal 4:00 - 4:59 AM
Reactive oxides of nitrogen (NOy) 1.6 1.5 2.1 -- PPB normal 5:00 - 5:59 AM
Relative Humidity 86.0 80.1 86.0 83.03 PERCENT normal 5:00 - 5:59 AM
Solar radiation 3 -- 3 -- W/M2 normal 5:00 - 5:59 AM
Sulfur dioxide -0.3 -0.3 -0.2 -- PPB normal 5:00 - 5:59 AM
Wind Direction - Resultant ENE -- -- ENE -- normal 5:00 - 5:59 AM
Wind Speed - Resultant 4.8 4.8 6.0 5.3 MPH normal 5:00 - 5:59 AM

Note that these data are in raw form and have not been validated. These data should not be used in any medical or scientific studies. Validated data is available upon request.
View pollutant and meteorological descriptions.
View haze camera images.
Site Details
Date Established:  09/16/1998
Elevation:  100 meters
Latitude:  35.85611
Longitude:  -78.57417