Northwest International Air Quality Environmental Science and Technology Consortium


Criteria Pollutant Design Values

This tool facilitates the retrieval of design values at user-specified locations across Washington, Oregon and Idaho.

This page will soon be shut down and users will be redirected to an updated version of the background concentrations lookup tool.

Please update your bookmarks!

The background concentrations lookup application is now available at:

Civil & Environmental Engineering, PO Box 642910, Washington State University, Pullman WA 99164-2910, 509-335-2576