Radiation Levels in California
WASHINGTON – During a detailed analysis of four west coast RadNet air monitor filters, the U.S. Environmental Protection Agency (EPA) identified trace amounts of radioactive iodine, cesium, and tellurium consistent with the Japanese nuclear incident. These levels are consistent with the levels found by a Department of Energy monitor last week and are to be expected in the coming days.
EPA’s samples were captured by three monitors in California and one in Washington State on Friday, March 18 and sent to EPA scientists for detailed laboratory analysis. The data was reviewed over the weekend and the analysis was completed Monday night. The radiation levels detected on the filters from California and Washington monitors are hundreds of thousands to millions of times below levels of concern.
In addition, last night preliminary monitor results in Hawaii detected minuscule levels of an isotope that is also consistent with the Japanese nuclear incident. This detection varies from background and historical data in Hawaii. This isotope was detected at our fixed monitor in Hawaii, and it is far below any level of concern for human health. The sampling filter from this monitor is being sent to our national radiation lab for further analysis.
In a typical day, Americans receive doses of radiation from natural sources like rocks, bricks and the sun that are about 100,000 times higher than what we have detected coming from Japan. For example, the levels we’re seeing coming from Japan are 100,000 times lower than what you get from taking a roundtrip international flight.
EPA is in the process of conducting detailed filter analyses for fixed monitors located in Oregon.
EPA’s RadNet filter results for San Francisco, Seattle, Riverside and Anaheim, California detected minuscule quantities of iodine isotopes and other radioactive particles that pose no health concern at the detected levels. Below are the results of the detailed filter analysis. All of the radiation levels detected during the detailed filter analysis are hundreds of thousands to millions of times below levels of concern.
All units are in Picocuries per meter cubed.
- Filter results for Anaheim, Calif. found:
- Filter results for Riverside, Calif. found:
- Filter results for Seattle, Wash. found:
- Filter results for San Francisco, Calif. found:
EPA’s RadNet system is designed to protect the public by notifying scientists, in near real time, of elevated levels of radiation so they can determine whether protective action is required. In addition, an analysis of the filters in the monitors can identify even the smallest trace amounts of specific radioactive isotopes.
As part of the federal government’s continuing effort to make our activities and science transparent and available to the public, EPA will continue to keep RadNet data available at: http://www.epa.gov/japan2011/
Pet Care | Real Estate | Restaurants | Tech | View All | * Add/Upgrade Business
Placer County News HeadlinesPlacer County Hoteliers: Taxman Cometh Airbnb, Vacation Rentals By Owner, inns or hotels. If you provide lodging in Placer County, you're required to collect Transient Occupancy Tax
Lake Tahoe Bound? Be prepared and patientTAHOE CITY, Calif. -- As Northern California prepares for the second and third storms of a week-long string of weather systems, Placer County is reminding residents and visitors
New California Laws 2017 (Part 15)Roseville, CA - New California laws for 2017. Part 15 includes criminal gangs, property taxes, real estate licenses, terrorist activity, child abuse, voting: felons, human trafficking
Study: Lung Cancer Patients Not Receiving TreatmentA national study by researchers at UC Davis Comprehensive Cancer Center has found that a significant number of lung cancer patients are not receiving treatment.
$21 Million for Regional Small BusinessesThe Capital Region Small Business Development Center (SBDC) has surpassed significant milestones in helping regional businesses
Rocklin Preschoolers Donate to Children in NeedROCKLIN, CA, - Students at Merryhill Preschool in Rocklin collected 69 pairs of pajamas to benefit local children in need for the holidays.
Bust Water Use Myths in Water Spots Video ContestLocal area middle and high school students can win cash prizes and the opportunity to view their video on the Raley Field Jumbotron
Placer SPCA seeks 2017 Hero Awards NominationsRoseville, CA - Placer SPCA is seeking nominations for the 2017 Hero Awards, to be presented at the 16th annual Funny Bones Comedy & Awards Night
Beatles vs. Stones Tribute at Harlows this MarchThe debate between the Beatles and the Rolling Stones has been going on ever since they first crossed paths on the charts 53 years ago
Man Still Recovering from TBITwo years back, I featured Daniel Mignerey who somehow survived life-threatening injuries on February 6, 2015
Rocklin Library hosts Lend A Heart Therapy DogsRocklin, CA- The Doggone Good Reading Group meets the second Tuesday of every month from 3:30 to 4:30 at the Rocklin Library
Placer Vineyards granted Regional General PermitJust west of Roseville, Placer Vineyards was granted its Regional General Permit
NEWS: In Case You Missed It