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Smoke Sense Study: A Citizen Science Project Using a Mobile App

Download the Smoke Sense App today.

Download on the App Store Download on Google Play

Important Information for Smoke Sense App Users Concerning an Upgrade

The Smoke Sense research team has used feedback from the 2017 pilot season participants to make updates to the app. A new version will be released as soon as the updates and the necessary testing is complete.

If you have downloaded the app on your mobile device, you will see an update notification. New users can download the current app and get a notification as well when the update is completed. Please note, the current app that is available for download has limited functionality while the updates are in progress.

Updates that you can look forward to include:

  • Your current air quality dashboard will display concentrations of fine particulate matter and ozone with the time stamp of last measurement.
  • Incorporated EPA health behavior messages on the Dashboard.
  • Access to the most current information about individual fires.
  • Hourly forecasts of smoke and ozone across the continental US.
  • Educational component called Smoke Smarts to test your knowledge of wildfire smoke exposure.
  • Upgraded graphics.
  • Streamlined user tutorials and information buttons.

Additional information about the new features will be made available here when the updated Smoke Sense App is released.


EPA researchers are conducting a citizen science study called Smoke Sense to: 

  • Determine the extent to which exposure to wildland fire smoke affects health and productivity
  • Develop health risk communication strategies that protect public health during smoke days

Individuals who want to contribute to science can participate in the study by using the Smoke Sense app, a publicly available mobile application on Google Play Store and App Store.  

The study will be the first of its kind known to use a mobile application to evaluate health effects from wildland fires experienced by those who participate, and to test whether such an app communicates health risks effectively.  Data gathered through Smoke Sense is anticipated to help EPA researchers and communities determine how smoke from fires impacts our health and productivity and gain important insights needed to develop health risk communication methods during smoky days. 

The study is being conducted during the 2017 fire season. The Smoke Sense app is available on Android and iOS devices.  Smoke Sense app user identities will be anonymous and non-identifiable. 

Frequently Asked Questions about the Smoke Sense Study

Why are we conducting this study? 

Wildland fires produce air pollution that adversely impacts people’s health. Exposure to wildland fire smoke increases visits to emergency rooms and clinics for problems related to asthma and other respiratory and cardiovascular diseases.  As the incidence and intensity of large wildland fires increase in the United States, more people will be exposed to unsafe levels of particulate matter (PM) and other pollutants from smoke. This public health problem brings forward the need for new and innovative scientific approaches to communicate health risks of exposure to wildland fire smoke to at-risk populations and communities.  

Current air pollution health risk communication strategies have solid footing in science and are widely used across communities to protect public health.  These strategies include: outreach by EPA on air quality and the Air Quality Index, public health advisories, and educational campaigns. However, it is not known whether these strategies are equally effective in protecting public health during wildland fire smoke episodes.

Exposure to wildland fire smoke can be sudden and unexpected, last hours to weeks,  and affect communities that may or may not have a public health response plan to reduce the adverse impacts of smoke exposure. EPA is continuing to advance the science and technology required to understand the impacts of smoke on air quality and public health.  Combining science with communication tools can improve delivery and timing of information to inform decision making and health protective behaviors.

Main contact for the study and the app: 

For web-related questions, use the "Contact Us" link below.