Last updated: June 7, 2023
Visit the interactive Dragonfly Mercury Project Data Dashboard to explore park dragonfly mercury data and the risk mercury poses to parks.
The image above shows a preview of the Dragonfly Mercury Project (DMP) Data Dashboard. Explore the linked page to see where DMP sampling has happened and what the data show.
Not sure where to start? Click the “Need Help?” tab at the bottom of the dashboard for useful tips to explore the map and understand the charts.
The Dragonfly Mercury Project is a nationwide program that engages the public in collecting dragonfly larvae for mercury analysis. Dragonfly larvae can serve as indicators of mercury, a toxic pollutant, in aquatic food webs. The project data help resource managers make informed decisions to protect human and wildlife health. To date, more than 5,000 citizen scientists and community volunteers have taken part in this project at over 100 national parks and other protected areas. Support for the Dragonfly Mercury Project is provided by the National Park Service, U.S. Geological Survey, and the National Park Foundation. Other collaborators are the Appalachian Mountain Club, Dartmouth College, and the DMP Steering Committee, which includes members from U.S. Environmental Protection Agency and U.S. Fish and Wildlife Service.