Wyoming DEQ Deploys Mobile Air Monitor in Rawlins

deq.wyoming.gov

Published December 4th, 2025

Detected March 17th, 2026

Summary

The Wyoming Department of Environmental Quality (DEQ) has deployed a mobile ambient air monitoring station in Rawlins, Wyoming. The station will collect data for approximately one year to assess air quality, particularly downwind of oil and gas development.

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The Wyoming Department of Environmental Quality (DEQ), Air Quality Division (AQD), has announced the deployment of a mobile ambient air monitoring station in Rawlins, Wyoming. This station, operational since November 20, 2025, is equipped to monitor a range of pollutants including nitrogen oxides, sulfur dioxide, ozone, carbon monoxide, methane, PM10, and PM2.5. This initiative is part of the DEQ-AQD's 2025 Network Assessment recommendations to ensure sufficient monitoring downwind of oil and gas development.

While this is an informational notice and does not impose new direct obligations on regulated entities, it highlights the DEQ's focus on air quality monitoring in areas impacted by industrial activity. An open house is scheduled for December 16, 2025, for public engagement. Data collected will be available on www.wyvisnet.com. Compliance officers should note the DEQ's enhanced monitoring efforts in this region.

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December 4, 2025 - In Air Quality ‚ Monitors By kguille 0

Wyoming DEQ adds mobile air quality monitor to Rawlins

Statewide, Wyo – The Wyoming Department of Environmental Quality (DEQ), Air Quality Division (AQD) has begun operating a mobile ambient monitoring station in Rawlins, Wyoming. To introduce the station and engage with the community, AQD will host an open house on December 16, 2025, from 10:00 AM to 1:00 PM, off the footpath behind the Rawlins Family Recreation Center.

All members of the public are encouraged to attend.

The Rawlins ambient air monitoring station (Rawlins Mobile) began collecting data on November 20, 2025, and is expected to remain in operation for approximately one year.

Rawlins Mobile is equipped with advanced instrumentation to monitor a wide range of air pollutants, including:

Gaseous monitors for nitrogen oxides, sulfur dioxide, ozone, carbon monoxide, and methane/non-methane hydrocarbons
Continuous monitoring of particulate matter (PM 10 and PM 5)
A camera system for visual documentation
Meteorological instruments to track weather conditions This station is one of three mobile gaseous monitoring units deployed across Wyoming to help characterize air quality in diverse locations. The mobile monitoring stations are self-contained monitoring shelters that may be moved to different locations in a relatively short time frame.

Rawlins has been selected for temporary expanded air quality monitoring, following recommendations from the DEQ – AQD 2025 Network Assessment. The primary objective of this effort is to ensure monitoring remains sufficient downwind of oil and gas development. Using the Rawlins Mobile unit, DEQ-AQD will assess a variety of air pollutants in Rawlins and the surrounding region.

All data from this site and a display of real-time concentrations can be found at www.wyvisnet.com.

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