ASEQ-EHAQ

L'Association pour la santé environnementale du Québec / Environmental Health Association of Québec

Managing Multiple Chemical Sensitivity (MCS) for Healthcare Providers and Patients

Access to health care requires a scent-free environment. If exposures cannot be managed, having a “safe room” to place and protect MCS patients is beneficial. 

How to create a scent-free environment (health care provider’s office):

Implementing and Enforcing Scent-Free Policy Tools

Eco Living Guide

Environmental pollutant exposure is a modifiable risk factor for developing and/or exacerbating many chronic non communicable diseases, including MCS.

Taking an exposure history

There are no biological markers to support the diagnosis of MCS. The most characteristic feature is intolerance to common, airborne chemical exposures at levels previously tolerated, and tolerated by the healthy population. There are several tools used to help support the diagnosis.

Diagnostic criteria

Consensus Criteria

The Quick Environmental Exposure and Sensitivity Inventory (QEESI)

The Brief Environmental Exposure and Sensitivity Inventory (BREESI)

MCS is a recognized medical disability with the legal right to accommodation. Health care providers may be asked to advocate for their patients

Support for accommodation (workplace, housing, etc)

Patient Support Letter Template 1

Patient Support Letter Template 2

Patients with MCS need help and support from their health care practitioner to learn to manage their condition.

Patient Management


SEEDS of health

Below you will find two versions of the activity and symptom tracking forms for your convenience:

Instructions for Activity and Symptom Tracking – MCS Activity and Symptom Tracking_ Days of the Week MCS

Multiple Chemical Sensitivity (MCS) – Activity, Symptom Tracking and Instructions

Hospital support

Best Practices in MCS Management: A Practical Guide for Hospital Staff

Part 1: Pollution Prevention

Part 2: Environment-Sensitive Care

Patients who can self-manage their condition well decrease their use of the health care system and have an improved quality of life.  

Tools for Patients

Managing MCS

People with MCS are entitled to the same legal rights as those with other disabilities, including accessibility and inclusion.

Legal Aspects

Alternative Dispute Resolution

Duty to Accommodate and Undue Hardship

Medical Model Vs Social Model of Disability

Questions and Answers on the Legal Aspects of MCS

Sample Letters to Request Accommodation