What term describes sensitivities that arise due to multiple chemical exposure?

The term that best describes sensitivities arising from exposure to multiple chemicals is Multiple Chemical Sensitivity (MCS). MCS refers to a condition where individuals experience various symptoms when exposed to low levels of multiple chemicals. These chemicals can include substances found in everyday items like perfumes, cleaners, and building materials. People with MCS often report a wide range of symptoms that can affect multiple systems in the body, including respiratory, neurological, and gastrointestinal.

This condition is particularly important in discussions of indoor air quality because it underscores the potential impact of combined chemical exposures in indoor environments. Understanding MCS helps in identifying and mitigating indoor pollutants that could contribute to the symptoms experienced by those affected.