• 1 Read our new study report Read our recent report summarizing our main findings on mercury, fish, and health.

    This report was presented at the 2014 Tar Creek Conference.

  • 2 Watch our new video series!

    Check out our new video series to learn more about the Grand Lake Watershed Mercury Study.

    Hear why community members wanted to study mercury in Grand Lake, watch researchers analyze samples, and find out what we learned.

    Click here to watch all the videos.

  • 3 FDA and EPA release new guidelines on fish consumption The U.S. FDA and EPA recently recommended that pregnant and breastfeeding women, women who might become pregnant, and young children should eat more fish low in mercury because fish are healthy and provide important nutrients.

    Learn more here.

  • 4 Community partnerships

    True researcher-community partnerships require the involvement of many community members.

    We are grateful for the involvement of so many community members in being study participants, donating fish, giving us feedback and suggestions, and hosting events.

    We could not have done this project without you! Thank you!


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We measured mercury levels in over 1,400 fish from Grand Lake and Lake Hudson.

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We tested mercury exposure in 150 residents and asked about their fish consumption.

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We are grateful to the community members and local agencies who contributed to our study.

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Harvard School of Public Health LEAD Agency university of Oklahoma Health Sciences Center logo

National Institute of Environmental Health Sciences The Grand Lake Watershed Mercury Study is supported with funding from the National Institute of Environmental Health Sciences Grant No.1R21ES017941.

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