North Coast Unified Air Quality Management District
707 L Street
Eureka, CA 95501

Office (707) 443-3093
Fax (707) 443-3099

Office Hours:
Mon-Fri 9am- 12pm, 1-4pm

Burn Day Information
(707) 443-7665 or
(866) BURN-DAY

Complaint Hotline
(707) 444-2233
Radiation Information
The United States Environmental Protection Agency (EPA), in cooperation with the North Coast Unified Air Quality Management District (District), has been monitoring the levels of radiation in our area for several years.
Local real time monitoring data from the RadNet site based in Eureka continue to show that there is no increased risk of harmful levels of radiation exposure to the citizens of Humboldt, Del Norte or Trinity Counties. The District will continue to examine the data provided by the RedNet monitoring for any indication of increased levels.
For current information please visit the following websites:
Historical 2011 Fukushima Incident Information and Resources:
  • U.S. EPA - Japanese Nuclear Emergency Radiation Monitoring 2011

  • USGS and the National Atmospheric Deposition Program (NADP) networks measured fission-product isotopes in the US from the Fukushima Daiichi nuclear power facility atmospheric release incidents in March 2011. The USGS website shows that following the disaster, radioactive iodine and cesium were detected in precipitation samples but at levels well below any level of public health concern.

  • The NADP website shows the summary data for radiological fallout samples collected from March 8 - April 4, 2011, as well as links to the full article and data analysis.
  • Japan Tsunami Marine Debris - What to do if you see debris.
  • Tsunami Debris on California's North Coast - The March 11, 2011, tsunami produced five million tons of debris. Most of the debris stayed near Japan, but NOAA estimates 1.5 milllion tons were caught in the Pacific Ocean currents and pushed by winds towards North America. Tsunami debris may begin arriving on the North Coast later this year and continue over the next several years.

If you have additional questions or require further assistance, staff are available to assist you at (707) 443-3093 or

Current Information
All 3 Zones

Wednesday September 20th

For burn day status call
Did You Know?
Oil-based paints and varnishes contain solvents that evaporate and form smog. Use water-based products instead.
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