Other sampling information:

The CDPH Radiologic Health Branch (RHB) maintains monitoring stations throughout California used to conduct routine air monitoring for radiation.

Visit the CDPH Radiologic Health Branch website.

In response to the Japanese nuclear incident of March 2011, RHB increased the frequency of its routine air monitoring program for six weeks beginning mid-March 2011 - link to results below.

RHB detected only trace amounts of radiation attributable to the Japanese incident in 2011, well below levels of health concern.

RHB resumed its routine weekly air sampling program at the end of April 2011 and continues that routine monitoring along with periodic milk and other types of sampling - link to results below.

To view the results of RHB's ongoing routine radiation monitoring program, go to RHB's Environmental Radiation Monitoring page.

In addition to its monitoring program, the RHB has joined Alaska, Washington and Oregon in improving monitoring efforts in coordination with the federal Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA). Also, the RHB will provide research funds to the Kelp Watch 2014 project administered by Dr. Steven Manley of California State University Long Beach. Dr. Manley's kelp project includes sampling of sea kelp along the Pacific west coast.

All of us are exposed to radiation every day, both from natural sources such as rocks and minerals in the ground and man-made sources such as medical x-rays. According to the National Council on Radiation Protection and Measurement, the average annual radiation dose per person in the United State is 620 mrem from natural and man-made sources. For example, an airline flight from Los Angeles to Chicago would result in a radiation dose of about 2-3 mrem.

As a follow-up to the Japanese incident, RHB may occasionally post additional information and data specific to the Fukushima response on this page.