District Air Quality Historical Data
The District operates four air monitoring stations within its tri-county jurisdiction of Humboldt, Del Norte and Trinity counties:
Del Norte County:
  • Crescent City Station
Humboldt County:
  • Jacobs Station
  • Humboldt Hill Station
Trinity County:
  • Weaverville Station
Data collected at these stations is reported to the EPA for determining compliance with the Federal Ambient Air Quality Standards. The District regularly provides a status and overview of current air monitoring activities to its Governing Board meetings and through the State's AQMIS Database website (see below).

The District's historical air monitoring data is most easily accessed through the California Air Resources Board (CARB) databases:
iADAM Database: iADAM Database Guide; iADAM website
AQMIS Database: AQMIS Database Guide; AQMIS website
(Click here for District's suggested guidance to obtain air data from AQMIS site.)
Current Information
for
All 3 Zones
PERMISSIVE BURN DAY?
DATE
YES
NO
CALL

Password:
Today:
Tuesday November 30th

For burn day status call
1-866-287-6329
Did You Know?
Pre-1990 trucks can emit two and a half times as much NOx and five times as much particulates as trucks meeting the current on-road heavy-duty engine exhaust emission standards.
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