Available Ambient Data by Pollutant

To get the latest available ambient data for a particular pollutant or meteorological measurement, select that monitor from the drop-down list. The data will be displayed below once you have made your selection. To display data from a past date, click "Change date." All current values and statistics are averages for one-hour durations, unless the name of the monitor indicates otherwise.

Select the Monitor Acceptable PM2.5 AQI & Speciation Mass Barometric pressure Carbon monoxide Nitrogen dioxide (NO2) Outdoor Temperature Ozone Ozone (8 Hour Average)* PM10 Total 0-10um STP PM10-2.5 - Local Conditions PM2.5 - Local Conditions Rain/melt precipitation Reactive oxides of nitrogen (NOy) Relative Humidity Solar radiation Sulfur dioxide Wind Direction - Resultant Wind Speed - Resultant

Date: 04/23/2024 (Change date)

(or select by County..Site)

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.