The Grassy Narrows & Islington Band Mercury Disability Board


Mercury Contamination Facts

Agreements and Legislation
Mercury Programs
Methylmercury - A Dangerous Chemical
Methylmercury Outbreaks
Treatment for Mercury Poisoning
Mercury Poisoning Worldwide
Diagnostic Criteria
Benefit Entitlement
Mercury Status in Fish
The Report - A Valuable Study Tool


.There are scientific tests used to find out if people show signs of some form of mercury poisoning.

The scientific method for finding out about human exposure to natural (mercury) and synthetic (man made) chemicals is based on sampling and analysis of a person’s tissues and fluids. Substances studied include blood, urine, breast milk, expelled air, as well as hair, fat, and bone.

The kidneys generally contain the highest amounts of methylmercury in humans. High levels may lead to kidney damage and failure. Testing urine levels is important in finding out about negative effects on our nervous system; persons affected may show signs of irritation, shaking (tremor), kidney damage, and other symptoms known by scientists to be consistent with mercury poisoning. Exposure to methylmercury is often measured and monitored by testing blood samples. Scientists have found a close link between the eating of an unsafe amount of contaminated fish and mercury levels in blood.

The relationship between methylmercury exposure, health effects and hair has been well established. Methylmercury poisoning occurs mostly in food. This compound is absorbed by a person’s blood. Eventually it becomes a part of a person’s hair and is a good indicator of the consumption of this contaminated food. It is said to be particularly useful in gauging consumption of contaminated fish by pregnant mothers.

Eligibility to Apply for Benefits

For a person to be eligible to apply for benefits (per legislation), that person must be a current member of Grassy Narrows First Nation or Wabaseemoong Independent Nations; a past member of one of the two bands; or a registered Indian who was customarily resident on one the two first nation communities prior to the first day of October 1985

Download the Mercury Contamination Facts Booklet in PDF Format (680k)

Did you know...

that since inception to March 31, 2017 the Mercury Disability Board has processed 1093 initial applications for benefits.



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