Particulate Matter Air Sensors


To gather more information about particulate matter (PM) pollution, LRAPA has been testing small personal air sensors for the last few years. We have found particular luck and accuracy with a PurpleAir Monitor and we have been working hard to distribute these small particulate matter air sensors throughout the county.

Community buildings, fire stations, local schools, and even at our stationary monitoring stations have been equipped with these sensors. While the technology in this is not as sophisticated as our stationary monitoring site equipment, it is a reliable way to check local impacts from wildfires or woodsmoke. These air sensors did require a calibration with a correction factor for our area. In this way, we were able to get the most accurate and consistent data from these sensors/

As of August 21, 2018, the map is in BETA mode. It will show you the current Air Quality Index (AQI) but does not have the full capability for graphing or recording the history. These are features we hope to make available in the future.This map does not report our standard stationary monitoring sites nor does it report the AQI to the gauges on our front page. For data from our federally referenced standard monitor sites, see our Today's Air Quality page.

To use this map, simply click on the air sensor (as represented by triangles) of your choice. To understand the reported AQI, check out our What is the AQI page

McKenzie Bridge/Terwilliger Fire Info

Residents of McKenzie Bridge area can follow along with the wildfire smoke particulate matter levels on the map above. Two new particulate matter air sensors have been installed at the McKenzie Bridge High School and USFS bunkhouse. 

Latest fire information

Clean Air Kids Program 

This initiative was started by LRAPA in response to local schools wanting more information about safe air quality levels for outdoor activities. This provides schools with the necessary tools to determine activity levels pending local air quality during high pollution times like wildfire season and winter wood heating days. Participating schools received a free air sensor through a Department of Environmental Quality grant. Students, parents, teachers, coaches, and administrators can use this information along with the guidelines from OSAA and the Oregon Health Authority to make decisions about activity levels:

To use this map, simply click on the map (it will take you to the map page) and zoom into the station of your choice. Click on the triangles for more data information. Please note that these air sensors are not the same as our stationary monitoring equipment. The data from these smaller units are not factored in for our Air Quality Index information on the front page of our website.

If one of the sensors seems particularly off or there are any other issues, please email us and let us know