Dragonflies Reveal Surprising Insights into Mercury Pollution

The study used the Dragonfly Mercury Project, a nationwide program that works with public participants to collect dragonfly larvae for mercury analysis. Citizen scientists and community volunteers in 150 National Parks helped collect and measure dragonfly larvae from more than 750 sites, turning a fun outdoor activity into valuable scientific data.

Samples were analyzed using a state-of-the-art instrument capable of detecting different types of mercury in dragonfly larvae. The chemical signature of mercury from different sources is as unique as a fingerprint and can be used to reveal how mercury reached the area. This collaborative effort can help to inform resource management decisions while improving public awareness of environmental issues.