Why Ongoing Air Quality Monitoring Matters A new study from researchers at Mount Sinai and Harvard T.H. Chan School of Public Health has revealed that exposure to wildfire smoke can cause serious health effects that last up to three months after the fires are over. This groundbreaking research, published in Epidemiology (May 28, 2025), highlights the long-term risks of fine particulate matter (PM2.5) from wildfire smoke, especially in vulnerable communities. The study analyzed over 21 million hospitalizations across 15 U.S. states and found strong links between PM2.5 exposure and increased cases of: Asthma and COPD flare-ups High blood pressure and heart attacks Hospital admissions for respiratory and cardiovascular issues   These effects were especially pronounced in low-income neighborhoods and for individuals with a history of smoking, demonstrating a clear need for continuous air quality monitoring—not just during a wildfire, but long after the smoke has cleared. How TELLUS Helps Communities Monitor and Respond to Wildfire Smoke At TELLUS, we understand that air pollution from wildfires doesn’t stop when the flames go out. Our AirU Pro monitors and AirView dashboard offer real-time and historical air quality data, including PM2.5 levels, to help schools, city leaders, and families: Track lingering pollution after a wildfire Set custom alerts for unsafe breathing conditions Make data-informed decisions about outdoor activity, safety protocols, and community health response   With forecasting and Nowcast options available through our AirView iframe integrations and API, it’s never been easier to get ahead of poor air quality events—whether you’re managing a city, a school district, or just trying to keep your family safe. Better data means better decisions. Wildfire monitoring solutions Source: Epidemiology, May 28, 2025 New Study Reveals Long-Lasting Health Impacts of Wildfire Smoke Why Ongoing Air Quality Monitoring Matters A new study from… Read More Wildfire Smoke Is 10x More Toxic Than Traffic Pollution, Say Stanford Experts Why this matters, and how to protect your health As… Read More Community Air Monitoring Makes the Invisible Visible When smoke from wildfires or industrial activity moves in, it… Read More Can Outdoor Pollution Affect Indoor Air? New Study from the University of Utah Says: It Depends. We spend about 80% of our time indoors, often assuming… Read More Load More

Why this matters, and how to protect your health As wildfires burn more frequently and intensely across the western U.S., researchers are warning: the smoke may be more dangerous than we realize. According to Stanford scientists, wildfire smoke is about 10 times as toxic as air pollution from fossil fuels. Even at low levels, exposure has been linked to heart, lung, and neurological damage—and there’s no known “safe” threshold. “Each new study should increase our concern,” said Dr. Lisa Patel, pediatrician and lead author of Climate Resilient Schools. Children, older adults, pregnant people, and those with asthma are especially vulnerable, but everyone is at risk when smoke lingers in the air. What’s in wildfire smoke? Wildfire smoke isn’t just soot. It’s a chemical stew of: Fine particulate matter (PM2.5) that enters deep into the lungs Volatile organic compounds and heavy metals Gases like carbon monoxide and benzene These pollutants can damage the cardiovascular, respiratory, and nervous systems, and children’s lungs may be especially at risk due to ongoing development until age 21. What can you do to stay safe? Stanford experts recommend: Checking local air quality daily (use tools like AirView) Using a portable HEPA air cleaner indoors during wildfire events Wearing a well-fitting N95 mask outdoors when smoke is present Monitoring indoor air quality with a reliable air quality monitor like AirU And importantly: limit outdoor activity for kids, seniors, and people with chronic health conditions when smoke levels are high. Why wildfire smoke is getting worse Climate change is driving hotter, drier conditions, leading to more intense wildfires and longer smoke seasons. “Wildfire smoke has single-handedly reversed decades of clean air progress in the U.S.,” said Dr. Marshall Burke, an environmental economist at Stanford.   Public health messaging matters Experts also stress the importance of accessible alerts and multilingual communication, especially in lower-income areas where protective resources may be limited.   Want to be alerted when air quality turns unhealthy in your neighborhood? Sign up for our beta now to get personalized notifications and stay ahead of the smoke. Get Free Exposure Alerts Wildfire Smoke Is 10x More Toxic Than Traffic Pollution, Say Stanford Experts Why this matters, and how to protect your health As… Read More Community Air Monitoring Makes the Invisible Visible When smoke from wildfires or industrial activity moves in, it… Read More Can Outdoor Pollution Affect Indoor Air? New Study from the University of Utah Says: It Depends. We spend about 80% of our time indoors, often assuming… Read More Dust Storm Drops Salt Lake City’s Air Quality to Unhealthy Levels On the night of April 8, a powerful cold front… Read More Load More

We spend about 80% of our time indoors, often assuming the air inside is clean. However, new research from the University of Utah, co-led by TELLUS co-founder Dr. Kerry Kelly, reveals that outdoor pollution doesn’t always stay outside. Over 18 months, researchers used TELLUS AirU air quality monitors across the University of Utah’s Salt Lake campus to track how various pollution events like wildfires, temperature inversions, and dust storms affect indoor air. Here’s what they discovered: Inversions and dust typically remain outside. Wildfire smoke, however, can find its way in — especially during peak fire season and in buildings that use air-side economizers. The type of HVAC system in place matters, and better air filters can make a big difference. As we enter another wildfire season, this research is a timely reminder: the air inside your home, office, or classroom may not be as protected as you think. “The good thing is it’s a very solvable problem … Even simple solutions like portable air filters do a great job.” Dr. Kerry Kelly This work highlights a key point we emphasize at TELLUS: You can’t fix what you can’t see. Understanding how air moves and changes is the first step to protecting the people inside. Check out the full study in the June issue of Building and Environment, or learn how TELLUS turns invisible risks into visible, real-time insights. Don’t wait for the smoke to settle. Get visibility into your air quality today. Sources: https://www.sciencedirect.com/science/article/pii/S0360132325004597#bib0009 https://attheu.utah.edu/research/does-outdoor-air-pollution-affect-indoor-air-quality-it-could-depend-on-buildings-hvac/ Community Air Monitoring Makes the Invisible Visible When smoke from wildfires or industrial activity moves in, it… Read More July 8, 2025 Can Outdoor Pollution Affect Indoor Air? New Study from the University of Utah Says: It Depends. We spend about 80% of our time indoors, often assuming… Read More June 12, 2025 Dust Storm Drops Salt Lake City’s Air Quality to Unhealthy Levels On the night of April 8, a powerful cold front… Read More May 14, 2025 The Air You Stir Up: How Vacuuming Affects Indoor Air Quality Now that it’s spring, many of us are starting to… Read More April 23, 2025 TELLUS Featured on FOX 13 News During Salt Lake City Fire Response Last Friday, a large fire at Metro Group Recycling in… Read More April 16, 2025 Air Quality Monitor Deployment for Davis County Engages Community The Davis County Health Department is enhancing air quality awareness… Read More January 21, 2025 Davis County installs new TELLUS AirU Pro air quality monitors Davis County has improved access to real-time air quality data… Read More January 15, 2025 TELLUS AirView Featured on Fox-13 We’re excited to share another Fox-13 broadcast featuring TELLUS! Over… Read More December 10, 2024 “Tools to help you better monitor Utah’s air quality” – Kerry Kelly on KSL TELLUS Co-Founder Kerry Kelly on KSL: Tools for Monitoring Utah’s… Read More December 3, 2024 What U. researchers are learning about dangers associated with Great Salt Lake dust Researchers from the University of Utah have found that the… Read More September 19, 2024 Load More

On the night of April 8, a powerful cold front swept through Salt Lake City, bringing with it a massive dust storm that briefly obscured the skyline and spiked air quality index (AQI) levels to 129—unhealthy for sensitive groups. Captured on camera atop the University of Utah’s William Browning Building, the event revealed just how quickly conditions can change. Dust from Utah’s West Desert, Sevier Lake, and parts of eastern Nevada was carried into the city by wind gusts over 45 mph. This dramatic drop in air quality highlights a growing year-round concern across the West, where drought, exposed soil, and high winds contribute to more frequent dust events—adding to existing air quality challenges like inversions, ozone, and wildfire smoke. At TELLUS, our real-time monitoring systems are designed to capture these changes as they happen—empowering communities with data that’s both actionable and easy to understand. Read the full story or see real-time air quality data.

Now that it’s spring, many of us are starting to dive into our spring cleaning routines. While tidying up can help refresh our homes, there’s a hidden concern that often goes overlooked: the effect of vacuuming on indoor air quality. Vacuuming: A Double-Edged Sword for Your Home’s Air Quality Vacuuming keeps our living spaces clean, but it can worsen the air quality in your home over the short term because it stirs up particulate matter (PM). According to a study from the National Library of Medicine, when you vacuum, your cleaning efforts can cause a temporary resuspension of dust, dirt, and even toxic substances, such as lead, pesticides, and biological agents that can trigger allergic reactions. While the purpose of vacuuming is to remove these particles from our floors, some of them can get kicked back into the air, only to settle again on furniture, floors, and other surfaces. Some of these suspended particles can stay airborne for a significant amount of time – long enough for you to breathe them in. The Hidden Risks: How Dust Impacts Your Health Some dust particles are small enough to be inhaled, these are known as PM10 (particulate matter that is 10 micrometers or less in diameter). Inhaling these particles during vacuuming can lead to respiratory irritation, worsen allergies, or trigger asthma symptoms. These particles can be especially harmful to those with pre-existing respiratory conditions or weakened immune systems. What Can You Do to Minimize the Impact? Use a HEPA Filter Vacuum Investing in a vacuum with a HEPA filter can significantly reduce the amount of dust that is resuspended into the air during vacuuming. HEPA filters can also capture particles that are suspended, improving the overall air quality in your home and reducing the amount of allergens floating around. It’s important to note that a true HEPA filter in a well-designed vacuum with a sealed system can greatly improve indoor air quality, but if the vacuum leaks air or uses a low-quality filter, it may be a marketing gimmick. Keep the Windows Open While you’re vacuuming, consider opening windows or doors to improve airflow allowing particles to exit rather than circulate inside. Make sure it’s a day where the air quality is good, though, as letting in unhealthy air is counterproductive. Vacuum When You’re Not Home For those who have robot vacuums, this is a great solution to reduce your exposure to dust. Set your robot vacuum to clean while you’re away so you don’t inhale the dust it stirs up. Change the Filter on Your HVAC System A well-maintained HVAC furnace or central heating and cooling system filter can trap dust, pollen, and other particles, improving your indoor air quality. Improving your home’s air quality goes beyond just cleaning the floors. Make sure you change your HVAC filter at the recommended intervals. Changing your filter can provide a significant boost to the air cleanliness in your home. Just remember, while filtration helps, it cannot eliminate all pollutants, so it’s best to combine it with other strategies like ventilation and source control for optimal results. AirView showing a spike in PM levels caused by vacuuming indoors. How TELLUS Can Help You Monitor Air Quality Spring cleaning can stir up dust, but that doesn’t mean it has to impact your indoor air quality. With an AirU monitor, you can see real-time data about the air in and around your home – so you know when it might be time to open a window, switch up your vacuum, or swap out that HVAC filter. It’s a simple way to stay informed and make small changes that help you breathe a little easier. Contact us for more information! Wishing you a happy and healthy spring cleaning season!  

We’re excited to share another Fox-13 broadcast featuring TELLUS! Over the past months, we’ve been consistently providing them with air quality data to support their reporting and keep communities informed. Check out the latest clip to see how our real-time data is helping shed light on local air quality challenges. Watch the broadcast here!