Multiple Chemical Sensitivity (MCS) is also known as - Environmental Illness (EI), Chemical Sensitivity, Chemical Injury, Toxic Injury, Sick Building Syndrome, Toxic Induced Loss of Tolerance (TILT) and Idiopathic Environmental Intolerance (IEI) just to name a few.

Multiple Chemical Sensitivity manifest itself as an unusually severe sensitivity or allergy like reaction. These reactions occur when, a person with MCS, is exposed to simple everyday environmental chemicals and pollutants at levels that are normally deemed safe and well tolerated by the general population.

For a brief overview of the triggers, symptoms, and prevalence of MCS read - Multiple Chemical Sensitivity: An Introduction by Mark J.Donohue.


Important Note: The links below by no means represent an endorsement. Rather they are sources of information pertaining to MCS which the individual reader can decide for themselves if they're pertinent and/or valuable.

Material Written by

Government Agencies and Documents


Private Organizations, Associations, and Foundations


Informative Websites

Books: Professional (MD's, ND's, PhD's, RN's, MS's)


Books: Non-Professional (patients, caregivers, advocates)




Researchers and Publications

Medical Professionals and Clinics

Electronic Media: Documentaries & Movies


Electronic Media: News Stories & Personal Stories