Recent studies have highlighted significant health risks associated with exposure to carcinogenic chemicals found in various environments, particularly among firefighters and car occupants. The International Agency for Research on Cancer (IARC) has classified occupational exposure as a firefighter as a Group 1 carcinogen, emphasizing the need to identify hazardous chemical contaminants from combustion emissions. In a separate study, flame retardants such as TCIPP, TDCIPP, and TCEP were detected in the cabin air of cars, raising concerns about their cancer and neurotoxic risks. These findings prompted the Central Pollution Control Board (CPCB) in India to investigate the presence of these chemicals, which are often used to meet outdated flammability standards. Additionally, research indicates that air samples from areas affected by biomass combustion exhibit higher cancer potential compared to those from urban environments. This collective evidence underscores the urgent need for improved regulations and awareness regarding the use of hazardous chemicals in both firefighting and automotive industries.