Dragonfly Mercury Project Data Visualization Tool

The Dragonfly Mercury Project (DMP) is a nationwide program that engages the public in collecting dragonfly larvae for mercury analysis. Dragonfly larvae can serve as bioindicators of mercury, a toxic pollutant. DMP data can help inform decisions to protect human and wildlife health. To date, over 6,000 public participants have helped collect data at more than 140 national parks and other protected areas.

Visit the interactive DMP Data Dashboard to learn more about dragonfly mercury data and the risk mercury poses to parks.

Dragonfly Mercury Data Dashboard Explore the Data Visualization Tool!

Tips for the Data Dashboard

• Click the "Need Help?" tab at the bottom of the dashboard. There are helpful tips for exploring the map and understanding the charts.
• Park-specific data flyers are also available.These annual data summaries help tell the story of dragonfly mercury data at each participating park unit.

The DMP is jointly managed by the National Park Service and U.S. Geological Survey (USGS), with collaborative engagement from the Appalachian Mountain Club and Dartmouth College. Support for this work is provided by the National Park Service, USGS Ecosystems Mission Area, USGS Environmental Health Program, U.S. Fish & Wildlife Service, and the National Park Foundation.