What You Need to Know About Sitting in a Car with the Engine Running

Did you know that your parked car could be a potential health hazard? Carbon monoxide levels in garages can reach dangerous levels within minutes of a car engine starting. This odorless, colorless gas claims over 400 lives annually in the U.S.1

While most of us are aware of the environmental impact of idling cars, the immediate health risks are often overlooked. Here’s why staying in idle cars could be dangerous for your health.

The Danger of Idling Cars

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Carbon monoxide, an odorless and colorless gas, is the primary culprit in idling-related incidents. When a car’s engine runs in a confined space, this toxic gas can quickly accumulate to dangerous levels. In fact, it takes only about 5-10 minutes for carbon monoxide to reach lethal concentrations in a closed garage.

The danger extends beyond garages. Even in partially enclosed spaces or outdoors, prolonged exposure to exhaust fumes can be harmful.

Understanding Carbon Monoxide Poisoning

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Carbon monoxide is particularly dangerous because it’s virtually undetectable without specialized equipment. When inhaled, it binds to hemoglobin in our blood, forming carboxyhemoglobin, which prevents oxygen from reaching vital organs. This can lead to symptoms ranging from dizziness and nausea to loss of consciousness and, in severe cases, death.

The Centers for Disease Control and Prevention (CDC) outlines the following symptoms of CO poisoning:

  • Headache
  • Dizziness
  • Weakness
  • Nausea
  • Vomiting
  • Chest pain
  • Confusion

In high concentrations, CO can cause loss of consciousness and death within minutes. The elderly, children, and individuals with chronic heart disease, anemia, or breathing problems are more susceptible to its effects.

Safe Practices & Precautions

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To protect yourself and your loved ones:

  • Never run your car in an enclosed space like a garage
  • Avoid sitting in an idling car for extended periods, especially in cold weather
  • Install carbon monoxide detectors in your home and garage
  • If you feel dizzy or nauseous in your car, turn off the engine and get fresh air immediately
  • Have your vehicle’s exhaust system checked regularly for leaks
  • During winter, clear snow from your car’s exhaust pipe before starting the engine

The Consumer Product Safety Commission recommends installing CO alarms on every level of your home and outside sleeping areas. These devices can provide crucial early warning of dangerous CO levels.

The Environmental Impact

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Beyond personal safety, excessive idling contributes significantly to air pollution and greenhouse gas emissions. According to Natural Resources Canada, just 10 seconds of idling uses more fuel than restarting your engine. In fact, if Canadian motorists reduced their idling by just three minutes a day, it would be equivalent to taking 320,000 cars off the road for the entire year. (ref)

Idling also impacts local air quality. Idling vehicles contribute to the formation of smog and particulate matter, which can exacerbate respiratory conditions like asthma. By reducing unnecessary idling, we can all play a part in creating cleaner, healthier communities.

While cars are an essential part of modern life, it’s crucial to understand the risks associated with idling. By being aware and taking simple precautions, we can protect ourselves, our loved ones, and our environment. Remember, when it comes to idling, less is more – for your health and the planet.

Source:

  1. Centers for Disease Control and Prevention
Martha A. Lavallie
Martha A. Lavallie
Author & Editor | + posts

Martha is a journalist with close to a decade of experience in uncovering and reporting on the most compelling stories of our time. Passionate about staying ahead of the curve, she specializes in shedding light on trending topics and captivating global narratives. Her insightful articles have garnered acclaim, making her a trusted voice in today's dynamic media landscape.