After the 2011 Japan tsunami and earthquake, Oregon Public Health has been actively monitoring air and water for any higher than normal levels of radiation. At this time, health officials have not received any reports indicating higher than normal levels of radiation.

Since 1985, Oregon Radiation Protection Services (RPS) has, in collaboration with Environmental Protection Agency (EPA) RADNET program monitored air and water samples. Samples are collected once a month in Portland then analyzed locally by RPS staff before shipping to EPA in Montgomery, Alabama.