Research by St. George’s University Faculty Helps Curb Mercury Levels in Bermuda

Research by St. George’s University Faculty Helps Curb Mercury Levels in Bermuda

Dr. Martin Forde, Department of Public Health and Preventative Medicine.Results from a study conducted in part by St. George’s University Professor Martin Forde showed that blood concentration levels of methyl mercury in expecting mothers in Bermuda have dropped significantly since 2003.

A 2003 study detected mercury in all samples tested, with 59 percent having levels exceeding the U.S. Environmental Protection Agency’s guideline for fetal cord blood and 7 percent exceeding derived World Health Organization (WHO) guidelines. Since then, Dr. Forde, a Professor of Environmental and Occupational Health in SGU’s Department of Public Health and Preventive Medicine, working alongside researchers Eric Dewailly, Philippe Rouja, Cheryl Peek-Ball, Suzanne Côté, Emma Smith, Olivia Drescher, and Lyndon Robertson, determined which fish from Bermuda’s waters were safest for consumption and, after involving health authorities, physicians, and the public, mounted the highly successful intervention.

“We are not telling women to stop eating fish,” said Dr. Forde. “The best thing is to avoid larger fish and focus on smaller ones which are also nutritious but contain less mercury.”

Methyl mercury, commonly found in fish, particularly larger predatory fish, is dangerous in large quantities and can damage the nervous system, with children and babies being most susceptible. Although high levels of mercury do not necessarily mean that people will develop adverse health effects, it is important to be aware so that risks can be managed.

This study was just one example of studies conducted under the Caribbean Ecohealth Program (CEHP), a $1.6 million grant project on which Dr. Forde was a co-principal investigator.  Other research studies investigated levels of lead and other contaminants in the blood of pregnant women in 10 Caribbean countries – Antigua, Belize, Bermuda, Dominica, Grenada, Jamaica, Montserrat, St. Kitt’s and Nevis, St. Lucia, and St. Vincent – and compared them to US and Canada data. Dr. Forde and his colleagues hope to do further work and to embark on similar interventions and public education programs to address these.

About St. George’s University

St. George’s University is a center of international education, drawing students and faculty from 140 countries to the island of Grenada, in the West Indies, to its programs in medicine, veterinary medicine, public health, science, and business. St. George’s is affiliated with educational institutions worldwide, including the United States, the United Kingdom, Canada, Australia, and Ireland. The University’s over 13,000 graduates include physicians, veterinarians, scientists, and public health and business professionals across the world. The University programs are accredited and approved by many governing authorities and repeatedly recognized as the best in the region. For more information, visit

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