Collection of extensive on-line resources.

Mercury, and its more potent cousin, methyl mercury, is highly toxic and capable of causing serious damage to the developing brain. The most significant exposure pathway is fish and shellfish. But fish is also very healthy food. Fish consumption advisories warn children, pregnant women, and women of child-bearing age to avoid eating certain fish species. These advisories vary from location to location due to differences in the fish available. However, they can also be confusing because government health departments can be more or less precautionary in their advice. Advisories can vary for different age groups, for different fish species and even within the same species of fish, such as different forms of tuna.

Health Canada recommends that pregnant women, women of child-bearing age and young children limit consumption of shark, swordfish and fresh or frozen tuna to a single meal per month. In contrast, the US Food and Drug Administration and US Environmental Protection Agency recommend that these groups completely avoid shark, swordfish, king mackerel and tilefish. However, for fresh or frozen tuna, the US limit is less precautionary, at one meal per week. For fish with a lower mercury content, including canned light tuna, shrimp, salmon, pollock and catfish, the USEPA and USFDA recommend these fish be chosen within an overall limit of no more than two fish meals per week. For white (albacore) tuna, the advice is one meal per week as part of a two meals per week overall limit. Health Canada does not issue advisories for canned tuna or for overall weekly limits on fish consumption. Other fish likely to have lower mercury levels include farmed trout, haddock, tilapia and flounder.

Resources about Mercury

The following list of resources contain extensive information about mercury ranging from fact sheets to detailed and comprehensive reports.

  1. October 2013
    Web page
  2. April 2011
    Web page, Book
  3. February 2010
    Brochure
  4. February 2010
    Action Alert
  5. December 2009
    Report
  6. March 9, 2009
    Letter
  7. February 2009
    Report
  8. January 2009
    Fact Sheet
  9. 2008
  10. 2007
    Brochure
  11. March 2007
    Web page, Fact Sheet
  12. September 2006
    Report
  13. September 2006
    Summary
  14. 2006
    Web page
  15. June 2006
    Position Paper
  16. 2005
    Web page
  17. November 2004
    Position Paper
  18. September 2004
    Web page
  19. March 2004
    Action Alert
  20. 2003
    Web page
  21. 2003
    Web page
  22. 2003
    Web page
  23. July 2003
    Fact Sheet
  24. June 2003
    Background information, Report
  25. 2003
    Book
  26. December 2002
    Report
  27. July 2002
    Fact Sheet
  28. April 2001
    Fact Sheet
  29. 2000
    Report
  30. March 16, 2000
    Report

Frequently Asked Questions

Mercury in the News

Oct 10, 2013

Japan among the first to sign Minamata Convention on Mercury

Jan 19, 2013

Global Mercury Agreement to Lift Health Threats from Lives of Millions World-Wide

Oct 11, 2007
How is it that the mainstream news failed to notice a "study" saying pregnant women should eat more mercury-laden fish was an industry snow job?
Jul 11, 2007
Source: CBC News, Wednesday, July 11, 2007 | 5:01 PM ET
Dec 13, 2006
New Initiative to Remove Mercury from Auto Switches Applauded