Chicago, IL – As spring approaches across Illinois, safety officials are reminding residents in Chicago and surrounding communities that carbon monoxide exposure remains a serious risk inside the home.
According to fire safety and public health officials, carbon monoxide (CO) incidents often occur during late winter and early spring — not during the coldest stretches of the season. The risk increases as heating systems continue running overnight while daytime temperatures climb and household routines begin to change.
Officials say this transition period can allow hidden issues to surface, especially when furnaces and gas appliances are no longer running continuously but are still being used.
“People associate carbon monoxide with extreme cold,” officials say. “But the danger often shows up when the weather starts to improve.”
Carbon monoxide is a colorless, odorless gas produced by furnaces, fireplaces, water heaters, gas stoves, and other fuel-burning appliances. Without working CO detectors, rising levels can go undetected until symptoms appear.
Emergency responders across Cook County and Kane County, including calls reported in Chicago and Aurora, note that many CO incidents happen during seasonal transitions. Late winter weekends can carry added risk as households host guests, cook for extended periods, or gather indoors for major televised events like the big game.
As spring nears, residents often assume any heating-related problems would have already surfaced earlier in winter. Officials warn that assumption can be dangerous.
Symptoms of carbon monoxide exposure — including headaches, dizziness, nausea, and fatigue — are frequently mistaken for seasonal illness, stress, or general exhaustion.
Officials stress that carbon monoxide risk does not follow the calendar. It depends on conditions, equipment maintenance, and continued awareness.
As Illinois moves closer to spring, safety experts urge residents to test carbon monoxide detectors, check vents and appliances, and remain alert — even on warmer days.
