Flame retardants in the foam of vehicle seats may increase exposure to potentially cancer-causing chemicals, especially in the summer heat, according to a new study by the American Chemical Society.
It found that hotter temperatures caused the chemicals from flame retardants to release toxic fumes in 99% of cars tested.
Researchers are now urging government officials to amend regulations to prohibit the use of flame retardants in cars to reduce health risks.
Flame retardants are used in many products like furniture, electronics and mattresses.
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In the 1970s, they were added to the seat foam of vehicles to meet requirements put in place by the National Highway Traffic Safety Administration.
They’re used to prevent or slow the spread of car-related fires.
Researchers can’t say exactly what health effects might come from breathing in flame retardants, but according to the U.S. National Toxicology Report from last year, there was evidence of carcinogenic activity.
For now, researchers recommend rolling car windows down to let out hot air and wash your hands after being in a car.