Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018

Acadia National Park Allegheny Portage Railroad National Historic Site Apostle Islands National Lakeshore Appomattox Court House National Historical Park Battle Creek Cypress Swamp Bear Creek Lake Park Bear Meadows Natural Area Big Bend National Park Big Cypress National Park Big Thicket National Preserve Buffalo National River Cape Cod National Seashore Capitol Reef National Park Carl Sandburg Home National Historic Site Channel Islands National Park Chickasaw National Recreation Area Colorado National Monument Congaree National Park Cuyahoga Valley National Park Death Valley National Park Delaware Water Gap National Recreation Area Denali National Park and Preserve Devils Tower National Monument East Inlet Natural Area-Connecticut Lakes Nature Preserve Everglades National Park Fort Worth Nature Center and Refuge National Natural Landmark Gateway National Recreation Area Glacier Bay National Park & Preserve Glacier National Park Glen Canyon National Recreation Area Golden Gate National Recreation Area Grand Canyon National Park Grand Portage National Monument Grand Teton National Park Great Basin National Park Great Sand Dunes National Park Great Smoky Mountains National Park Gulf Islands National Seashore Hawaii Volcanoes National Park Homestead National Historic Site Hot Springs National Park Indiana Dunes National Park Isle Royale National Park Jean Lafitte National Historical Park and Preserve John Day Fossil Beds National Monument Katahdin Woods and Waters National Monument Katmai National Park and Preserve Kenilworth Park & Aquatic Gardens Klondike Gold Rush National Historical Park Knife River Indian Villages National Historic Site Lake Clark National Park Lassen Volcanic National Park Lewis and Clark National Historical Park Mammoth Cave National Park Marsh-Billings-Rockefeller National Park Maurice National Wild & Scenic River Minute Man National Historical Park Mississippi National River & Recreation Area Monocacy National Battlefield Montezuma Castle National Monument Mount Rainier National Park Natchez Trace Parkway and National Scenic Trail Niobrara National Scenic River North Cascades National Park Olympic National Park Oregon Caves National Monument Ozark National Scenic Riverway Padre Island National Seashore Pictured Rocks National Lakeshore Pinnacles National Park Pipestone National Monument Prince William Forest Park Pu'ukohola Heiau National Historic Site Redwood National Park Richmond National Battlefield Park Rock Creek Park Rocky Mountain National Park Roosevelt-Vanderbilt National Historic Sites Saguaro National Park Saint Croix National Scenic Riverway Saint-Gaudens National Historic Site San Juan Island National Historical Park Santa Monica Mountains National Recreation Area Saugus Iron Works National Historic Site Sequoia & Kings Canyon National Parks Shenandoah National Park Sleeping Bear Dunes National Lakeshore Tallgrass Prairie National Preserve Timucuan Ecological Historic Preserve Tumacacori National Historical Park Tuzigoot National Monument USGS:5eb1ca8782cefae35a29c3d3 Upper Delaware Scenic and Recreational River Valles Caldera National Preserve Voyageurs National Park Weir Farm National Historic Site Wind Cave National Park Women’s Rights National Historical Park Yellowstone National Park Yosemite National Park Zion National Park biota environment mercury contamination