Fish Consumption Advisory

Contaminants such as mercury, polychlorinated biphenyls (PCBs), and Kepone can be found in some species of fish in Virginia waterways. These contaminants can enter waterways in a variety of ways, including illegal dumping or accidental release. Mercury can enter waterways through atmospheric deposition from sources very far away. Fish and shellfish are also known to be a dietary sources of organic arsenic. The amount of organic arsenic found in fish and shellfish is usually 90 % of the total arsenic, and is known to have low toxicity for humans. Therefore, fish consumption advisories due to arsenic in fish are very rare.

Most of the fish consumption advisories in Virginia are for mercury and PCBs. When these contaminants are present in waterbodies they are known to bioaccumulate, which means that they can accumulate in fish tissues over time. Furthermore, they can biomagnify, which means that the concentration of the chemicals found in fish tissues will increase as they move up the food chain. For this reason, older, larger and carnivorous fish tend to be the ones that have advisories. For more information about the health effects associated with these contaminants, please click on the fact sheets for Mercury or Polychlorinated Biphenyls (PCBs).

Click on a link below to view the current fish consumption advisory for a specified river basin:

Chesapeake Bay and Small Coastal Basin (includes Great Wicomico, Piankatank, Poquoson, Lynnhaven, Pocomoke Rivers; Dragon Run Swamp; and Mobjack Bay)

Chowan and Great Dismal Swamp Basin (includes Nottoway, Meherrin, and Blackwater Rivers; Lake Drummond)

James River Basin (includes Maury, Jackson, Slate, Rivanna, Tye, Rockfish, Willis, Appomattox, Chickahominy, Pagan, Nansemond, and Elizabeth Rivers)

New River Basin (includes Little and Bluestone Rivers; Walker, Peak, and Reed Creeks; Claytor Lake)

Potomac River Basin (includes Occoquan River)

Rappahannock River Basin (includes Hazel, Thornton, Rapidan, Robinson, and Corrotoman Rivers; and Mountain Run)

Roanoke and Yadkin River Basin (includes Little Otter, Big Otter, Pigg, Dan, Smith, and Banister Rivers; Smith Mountain, Leesville Lakes; Lake Gaston; Kerr Reservoir; and Lovills Creek Lake)

Shenandoah River Basin (includes South, North, South Fork Shenandoah, and North Fork Shenandoah Rivers)

Tennessee and Big Sandy River Basin (includes Holston, Clinch, Powell, and Guest Rivers; Levisa, Russell, and Tug Forks)

York River Basin (includes Pamunkey, Mattaponi, Lake Anna, Little, Matta, Po, and Ni Rivers)

Fish provide substantial human health benefits. They are low in saturated fat, high in protein, and a good source of omega-3 fatty acids. Fish contain vitamin D, calcium, iron, magnesium, as well as other nutrients that are beneficial for human health. Fish consumption has been linked to a decreased risk of heart attack, stroke, and high blood pressure. Fish consumption may also contribute to immune system strengthening, healthy brain functioning, and proper infant growth and development. To achieve the health benefits of eating fish, it is advised to eat a variety of fish and shellfish that are low in mercury such as salmon, tilapia, shrimp, oysters, scallops, and sardines.

You can reduce the fat and contaminants (e.g. pesticides, PCBs) in the fish you eat. To reduce the potential harmful effects from eating contaminated fish, VDH recommends the following:

• Eat smaller, younger fish. Younger fish are less likely to contain harmful levels of contaminants than older, larger fish.
• Remove the skin, the fat from the belly and top, and the internal organs before cooking the fish.
• Bake, broil, or grill on an open rack to allow fats to drain. Avoid pan frying in butter or animal fat because these methods hold fat juices.
• Discard the fat that cooks out of the fish, and avoid or reduce the amount of fish drippings that are used to flavor the meal.
• Eat less deep fried fish since frying seals contaminants into the fatty tissue.