New car smell linked to health damage, Harvard studies find

The pleasant scent of a new car, often linked to feelings of pleasure, luxury, and comfort, may be a sign of potential health risks. Studies by scientists at Harvard University and the Beijing Institute of Technology suggest that inhaling the "new car smell" can be harmful.

Researchers conducted atmospheric measurements inside a medium-sized SUV equipped with various materials like plastic, faux leather, and fabric. They tested the vehicle in different parking conditions and times over two weeks to observe how environmental factors such as temperature and humidity affected the concentration of chemicals. The goal was to understand the variations in these compounds.

The analysis revealed that the air inside car cabins contains significant levels of volatile organic compounds (VOCs). In some cases, these levels exceeded safety standards set by regulations in countries like China. The study identified over 20 VOCs, with some classified as Group I and Group II carcinogens by the International Agency for Research on Cancer (IARC).

Among the most concerning compounds found were formaldehyde, detected at levels 35% above Chinese safety standards, and acetaldehyde, exceeding safety limits by 61%. Benzene, a known carcinogen found in paints, gasoline, and cigarettes, also surpassed permitted levels. These substances can be absorbed into the body, potentially increasing the risk of cancer over a lifetime. While opening windows offers a short-term solution, the long-term health implications of prolonged exposure to these chemicals remain a concern.