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Shown on these pages are the most current graphic summaries from a real-time
Aware Electronics radiation monitor, a particulate monitor by
PurpleAir and a
Davis Vantage View weather
station. All instruments are co-located in a Washington, D.C. suburb. An analysis
of the meteorological conditions are performed every six hours using the
ADAPT model
to determine the potential upwind source regions for the pollutant measurements.
The color filled regions represent the
source of the air
measured by the various sensors for the previous six hour period. The pollutant
source and sensor plots are updated
four times per day.
Click on any of the column titles for more detailed descriptions. Click on any
image for an enlarged version of the graphic. Time-series graphics from the last 31
days of monitoring can be displayed by entering the day and cycle to load the
graphics for a specific day and end-time or the graphics for the previous month are
also available from the monitoring and pollutant
source archive pages. Tabulated monitoring data are
available from January 2020.
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