Skip to main content
Oregon.gov Homepage

Aplastic Anemia Investigation

In response to a citizen inquiry, the Oregon Public Health Division and the Washington Department of Health led a multi-agency investigation to assess rates of aplastic anemia and certain cancers in Columbia County, Oregon and Cowlitz County, Washington.

This report also reviews the possible role of exposure to benzene from specific sources as a cause of disease in these counties.

Your browser is out-of-date! It has known security flaws and may not display all features of this and other websites. Learn how

×