New Car Smell Turns Toxic in Summer Heat

The "new car smell" that many associate with luxury may actually contain toxic compounds, as revealed by a study published in PNAS Nexus. Researchers found high levels of volatile organic compounds (VOCs) in new car interiors during hot summer days, originating from materials like carpets and upholstery. Exposure to VOCs can lead to health issues such as headaches and lung disease. The study identified formaldehyde, acetaldehyde, and hexaldehyde at levels exceeding national limits, raising concerns about passenger safety. With rising global temperatures, understanding VOC behavior in extreme heat is crucial. The research suggests the need for stricter regulations on VOC emissions in vehicles and improved ventilation systems. Consumers are advised to minimize exposure by parking in shaded areas and ventilating their cars. The study's findings could prompt the automotive industry to reevaluate interior materials and develop technologies to reduce VOC emissions, particularly in high-temperature conditions.