PM2.5 Sensors Map (PurpleAir) website (use LRAPA conversion)
Unofficial citizen-science air quality data from low-cost sensors. Although sensors provide shorter-term air quality data, they should not be used for official air quality readings
as they have reliability and accuracy limitations. The AQI indicated is not based upon District regulatory monitors (see EPA AirNow above) - note that the "current" AQI on AirNow is actually a 24-hour
average NowCast AQI. {Switch the Map Data Layer dialogue box in the lower left hand corner from “None” to “AQ and U” or "LRAPA" to apply a correction factor.] Also check out the
the Sensor Data Layer on the newly updated
EPA AirNow Fire & Smoke Map which includes PurpleAir sensors (New in 2020!).
.
[Select "Monitors - PM (PM2.5 & PM10)" & "Contours - PM2.5", then zoom in ("Ozone & PM" will show No Data/ND, as Eureka/Humboldt has a PM10 monitor)]. The "current" AQI indicated is actually a 24-hour NowCast average.
PM2.5 Sensors Map (PurpleAir) website (use LRAPA conversion)
Unofficial citizen-science air quality data from low-cost sensors. Sensors should not be used for official air quality readings. Although various AQIs are shown,
it is not relying upon District monitors (see EPA AirNow above) - note that the "current" AQI on AirNow is actually a 24-hour average NowCast AQI. [Switch the Map Data Layer
dialogue box in the lower left hand corner from “None” to “AQ and U” to apply a correction factor.]Check out the
EPA Air Sensor Toolbox.
Current Information for All 3 Zones
PERMISSIVE BURN DAY?
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2021-01-21
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2021-01-27
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Today: Thursday January 21st
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.