NOAA Air Resources Laboratory

Source/Receptor Concentration Matrix

Information on the matrix calculation

NOTICE: This product is no longer being updated.

The plus signs on the map below represent the source locations used in the calculation of the matrix. There are three ways to select a source location...
1. Enter the 3- or 4-letter WMO station ID (i.e., dca):

Or
2. Enter a latitude and longitude (decimal degrees, XXX.XX):
Latitude (Only NH available):
Longitude (West is negative, i.e. -140.95) :
Or
3. click on a location on the following map:


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