Eye-opening study reveals the home appliance that spews more benzene than secondhand smoke: 'You're at an elevated risk [of cancer]' image

Shocking Study Finds Gas Appliances Emit More Benzene Than Secondhand Smoke Indoors

Date: Nov 3, 2025

Category: Health & Technology


A groundbreaking study led by Stanford University has revealed that gas-powered home appliances, such as stoves and ovens, can emit benzene—a potent carcinogen—at levels that exceed those produced by secondhand cigarette smoke. Benzene, commonly associated with tobacco smoke and industrial pollution, is now being identified as a significant indoor air pollutant in homes using natural gas appliances. The research measured indoor benzene concentrations in households with gas appliances and found levels well above established health safety benchmarks. In some cases, the benzene exposure from cooking with gas was higher than what is typically encountered from secondhand cigarette smoke. This startling discovery highlights a previously underestimated health risk for millions of households. Benzene is a known cancer-causing chemical, and chronic exposure is linked to an elevated risk of leukemia and other serious health issues. The study’s authors warn that individuals living in homes with gas-powered appliances are at an increased risk of developing cancer and other health complications due to prolonged exposure to benzene. The findings underscore the importance of proper ventilation and the potential benefits of transitioning to electric appliances, such as induction cooktops, to reduce indoor air pollution and protect household health. Experts recommend that homeowners consider upgrading their appliances and always use exhaust fans or open windows when cooking with gas to minimize exposure. This research is a wake-up call, emphasizing the urgent need for public awareness and policy changes to address the hidden dangers of indoor air pollution from everyday household appliances. Read the source »

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