DOGAMI Open-File Report Series

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Open-File Report O-18-01, Radon potential in Oregon
by Jon J. Franczyk, Clark A. Niewendorp, and Jason D. McClaughry; 23 p. report, 1 map sheet, 38 x 44 inches, 1:750,000 scale, Esri geodatabase with internal metadata, external metadata in .xml format.

Abstract from the report:
Mapping the radon potential in Oregon is a research project initiated by the Oregon Department of Geology and Mineral Industries (DOGAMI) for the Oregon Geographic Information Council (OGIC), Natural Occurring Hazardous Materials (NOHM) element of the Hazard Framework Implementation Team. DOGAMI, in cooperation with the Oregon Health Authority (OHA), Radon Awareness Program, created the map of radon potential in Oregon at scale of 1:750,000. This project includes a spatial geodatabase with a resolution of 1:100,000 scale. DOGAMI identified areas of radon potential by the use of four data sources: (1) indoor radon measurements, (2) NURE equivalent uranium (eU) calculations (aeroradiometric data from the National Uranium Resource Evaluation [NURE] project), (3) locations of known uranium host rocks (Mineral Information Layer for Oregon, release 2 [MILO-2]), and (4) geologic polygons in OGDC-6 (Oregon Geologic Data Compilation, release 6, geodatabase). The DOGAMI map and geodatabase group geologic polygons into categories based on an estimation of ability of a particular rock/sediment type to generate radon. The approach maps variation in radon between and within geologic polygons and appears effective at differentiating Oregon’s scattered high and moderate radon potential areas. Therefore, this map and geodatabase can serve as a regional guide for identification of areas needing further indoor radon testing, and, through that, as a basis for proactive decision making.


Also see this layer on HazVu, DOGAMI's natural hazards online map.

Geodatabase is Esri® version 10.5 format.
Metadata is embedded in the geodatabase and is also provided as separate .xml formatted files.

Feature class:


Embedded in geodatabase and as external metadata in .xml file format: