New Low-Cost Sensor Tracks Wildfire Smoke Exposure

The device monitors PM2.5 levels in remote areas to help researchers better understand environmental air quality.

Updated on Oct. 21, 2026 in Asthma

A rugged electronic environmental sensor mounted on a wildlife tracking collar, resting on a mossy forest floor in a remote wilderness setting. — Researchers have developed a low-cost, open-source sensor that integrates with animal collars to track wildfire smoke exposure in remote wilderness areas. AI Illustration. Upload story photo >

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Should scientists prioritize tracking wildfire smoke's impact on wildlife health and behavior?

Researchers have developed a low-cost, open-source sensor designed to track wildfire smoke exposure in wilderness areas. This technology, which logs PM2.5 particulate matter data, could eventually provide researchers with a clearer picture of air quality impacts in remote regions.

Why it matters

Traditional air quality monitors are largely restricted to populated areas, leaving significant gaps in data for wilderness environments. By measuring how smoke exposure affects wildlife, this technology could help land managers develop prescribed burn strategies that minimize smoke hazards.

A study published in Methods in Ecology and Evolution outlines the deployment of the $100 sensors on mule deer in Utah and Colorado. The device records PM2.5 levels every 30 minutes, though the long-term biological effects of tracked smoke exposure are still being investigated.

The players

Colorado State University

An academic institution leading research on wildlife responses to environmental changes.

U.S. Forest Service

A federal agency that manages public lands and oversees wildfire and prescribed burn policies.

The details

The device uses laser technology from Sensirion to detect PM2.5 particulate matter, the fine inhalable particles common in wildfire smoke. It is designed to integrate with standard GPS animal collars, waking up every 30 minutes to record air quality data onto a memory card. This allows researchers to capture high-resolution environmental data in remote areas where stationary monitoring stations are unavailable.

June 22, 2025: A stationary logger recorded a particle rise after fireworks in Massachusetts.
December 11, 2025: Logger collar deployment began on a mule deer in Utah.
January 18, 2026: Utah mule deer was killed by a cougar, ending data collection.
October 7, 2026: The research results were published in Methods in Ecology and Evolution.

Health Landscape

This sensor leverages Sensirion laser-based particulate matter technology to bridge a critical data gap in air quality monitoring. It marks a shift from relying on fixed infrastructure to using mobile, animal-borne devices to track environmental health in previously unmeasured wilderness.

While this tool is currently focused on wildlife, it highlights how variable air quality can be, even at a local level. If you have asthma or concerns about smoke exposure in your area, discussing your respiratory management plan with a doctor is a valuable proactive step.

The takeaway

Advancements in low-cost sensors are making it easier to track particulate matter in remote environments. Staying informed about your local air quality index is a simple, effective habit for anyone managing asthma or other respiratory conditions.