Carbon Monoxide (CO) is a colorless, odorless, and tasteless gas composed of one carbon atom and one oxygen atom. It is produced by incomplete combustion of carbon-containing fuels such as gasoline, natural gas, propane, wood, and coal. Common sources of carbon monoxide include vehicle exhaust, gas-powered appliances (such as furnaces, water heaters, and stoves), fireplaces, and generators.
Carbon monoxide is highly toxic to humans and animals when inhaled in high concentrations. When CO is inhaled, it binds to hemoglobin in red blood cells, reducing the blood’s ability to carry oxygen to vital organs and tissues. This can lead to carbon monoxide poisoning, which can cause symptoms such as headache, dizziness, weakness, nausea, vomiting, confusion, and ultimately, if exposure is severe or prolonged, unconsciousness, brain damage, or death.
Carbon monoxide is a silent winter danger that can affect anyone, whether you’re at home or sitting in your vehicle during a storm. Heavy snow, blocked vents, and improvised heating sources can cause CO to build up quickly without warning. This guide explains the most important do‑nots, safer alternatives, and key precautions to help protect your household, your passengers, and your neighbors during severe winter weather.
When adjusting the clocks for Daylight Saving Time changes, remember to ensure your smoke alarms and carbon monoxide detectors are functioning correctly, as advised by fire safety officials.
In 2006, Massachusetts enacted “Nicole’s Law” after 7-year-old Nicole Garofalo’s tragic death from carbon monoxide poisoning. Despite its importance, many homes still lack mandated CO detectors, posing risks. Compliance remains low despite legal requirements for detectors in homes with fossil-fuel appliances or enclosed parking.
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