SALT LAKE CITY, Utah — As Utah braces for the colder months, health and safety officials are sounding the alarm about the dangers of carbon monoxide (CO) poisoning, a prevalent yet often overlooked hazard during winter. Carbon monoxide, frequently referred to as the "silent killer," is a colorless, odorless gas that can lead to severe health complications and even death if inhaled in significant quantities. Nationally, carbon monoxide poisoning sends over 100,000 people to emergency rooms each year, with more than 400 fatalities reported annually, according to the Centers for Disease Control and Prevention (CDC). In Utah alone, recent statistics reveal there were 384 emergency room visits and three deaths attributable to CO poisoning in 2024, highlighting the critical need for public awareness as the temperatures drop. In a joint effort to tackle this growing concern, the Utah Poison Control Center, the Utah Department of Health and Human Services, the Unified Fire Authority, and Enbridge Gas, which operates in Utah, Wyoming, and Idaho, are urging residents to take preventive measures and familiarize themselves with the symptoms of carbon monoxide exposure. "As winter approaches and heating appliances are turned on, the risk of carbon monoxide poisoning increases significantly," said Dr. Angela Dunn, Utah’s state epidemiologist. "We want to ensure that Utahns understand the dangers and know how to protect themselves." Carbon monoxide is generated when fuels such as gasoline, natural gas, propane, kerosene, wood, or coal do not burn completely. Common sources of CO include vehicle exhaust, malfunctioning furnaces, gas ranges, portable generators, charcoal grills, camp stoves, and even fireplaces. In poorly ventilated or enclosed spaces, CO can accumulate quickly, posing a serious risk to both humans and pets. This is particularly concerning during winter months when many people rely heavily on heating appliances, often without ensuring proper ventilation. Recognizing the symptoms of CO poisoning can be difficult because they often mimic common ailments. Symptoms include headaches, dizziness, weakness, nausea, vomiting, and confusion. Importantly, these symptoms can affect multiple individuals in the same environment, leading to misinterpretation as a common illness. "If you notice these symptoms, especially if they improve when you leave the area, it’s crucial to act quickly," cautioned Dr. Dunn. To mitigate the risks associated with carbon monoxide, officials recommend several preventive measures. Homeowners should have all fuel-burning appliances inspected annually by a licensed technician to ensure they are operating safely and efficiently. Additionally, installing Underwriters Laboratory-approved carbon monoxide detectors on every level of the home, particularly near sleeping areas, is strongly advised. These detectors serve as an essential layer of protection, alerting residents to dangerous levels of CO before they become life-threatening. Moreover, as snow accumulates during winter storms, residents are reminded to clear snow away from vents and exhaust stacks. This simple act can greatly reduce the likelihood of carbon monoxide buildup within homes. It is also crucial to avoid using grills or generators indoors, as well as never leaving vehicles running in attached garages, regardless of whether the garage door is open. Using unvented stoves, fireplaces, and gas ovens as heating sources is also discouraged, as these practices can lead to hazardous conditions. In the event of a carbon monoxide alarm sounding, officials emphasize the importance of immediate action. Residents should evacuate the building and seek fresh air without delay. If anyone experiences dizziness, nausea, or light-headedness, it is imperative to seek medical attention promptly. For non-emergency assistance, residents can contact the Poison Control Center at 1-800-222-1222. In emergencies, calling 911 is essential, especially if someone is unconscious or struggling to breathe. Local natural gas providers should also be contacted to report any suspected carbon monoxide leaks or issues. With awareness and proactive measures, the risk of carbon monoxide poisoning can be significantly reduced, ensuring a safer winter for all Utah residents. For additional information regarding carbon monoxide poisoning and to access Utah-specific data, residents are encouraged to visit the Utah Environmental Public Health Tracking website at https://ibis.utah.gov/epht-view/topic/CarbonMonoxide.html. By staying informed and vigilant, Utahns can protect themselves and their families from this silent yet dangerous threat during the winter months.