GREAT NEWS! Revised Maryland fish advisories:You can eat more STRIPED BASS.For more detailed information, see the press release.
Local Fish Consumption Guidelines
U.S. EPA/FDA Fish Consumption Information
Statewide Fish Consumption Guidelines for All AgesStriped bass and bluefish advisories for Maryland coastal waters have been added.
What You Need to Know about Mercury in Fish and Shellfish - EPA Fish Consumption Brochure - English (pdf, 235KB), En español (pdf, 182KB)
General Fish Consumption Information
Information for Physicians
Fish and Shellfish Contaminant Monitoring Program Background
Fish and shellfish can be an important part of healthy diet. They are a good source of high-quality protein and nutrients and are low in saturated fat. A well-balanced diet that includes a variety of fish and shellfish can contribute to a child’s proper growth and development. In addition, the American Heart Association recommends that adults eat fish at least twice a week for a healthier heart.
Many fish, including the most popular store-bought fish and shellfish, are safe to eat. Some, however, contain chemicals (such as methylmercury, polychlorinated biphenyls (PCBs), and various types of pesticides) that may harm children and adults. The Maryland Department of the Environment monitors and evaluates contamination levels in fish, shellfish, and crabs throughout Maryland and issues guidelines for recreationally caught fish (see our most recent guidelines). The U.S. Food and Drug Administration (FDA) issues nationwide guidance for commercial fish (fish bought in stores and restaurants). In March 2004, the FDA together with the Environmental Protection Agency (EPA) released the following national guidelines for women who may become pregnant, pregnant women, nursing mothers, and young children:
Five of the most commonly eaten fish that are low in mercury are shrimp, canned light tuna, salmon, pollock, and catfish.
Another commonly eaten fish, albacore ("white") tuna has more mercury than light canned tuna. So, when choosing your two meals of fish and shellfish, you may eat up to 6 ounces (one average meal) of albacore tuna per week.
Check local guidelines about the safety of fish caught by family and friends in your local lakes, rivers, and coastal areas. If no advice is available, eat up to 6 ounces (one average meal) per week of fish you catch from local waters, but don't consume any other fish during that week.
For more information about the federal guidelines visit:http://www.epa.gov/waterscience/fish/advisory.html
MDE Fish and Shellfish Contaminant Monitoring Program
The Maryland Department of the Environment (MDE) is responsible for monitoring and evaluating contaminant levels in fish, shellfish and crabs in Maryland waters. The tissues of interest for human health include the edible portions of fish (fillet), crab (crabmeat and "mustard"), and shellfish ("meats"). Such monitoring enables MDE to determine whether the specific contaminant levels in these species are within safe limits for human consumption. Results of such studies are used to issue consumption guidelines for recreationally caught fish, shellfish, and crab species in Maryland (see our most recent guidelines). Additionally, since fish, shellfish, and crabs have the potential to accumulate inorganic and organic chemicals in their tissues (even when these materials are not detected in water), monitoring of these species becomes a valuable indicator of environmental pollution in a given waterbody.
Fish Tissue Monitoring
The Maryland Department of the Environment has monitored chemical contaminant levels in Maryland’s fish since the early 1970s. The current sampling design divides the State into five regions:
Maryland routinely monitors core sampling sites within these five regions on a 5-year cycle. When routine monitoring indicates potential hazards to the public and environment, additional monitoring of the affected area may be conducted to verify the initial findings and identify the appropriate species and size classes associated with harmful contaminant levels. Findings from such studies are the basis for the fish consumption guidelines (see our most recent guidelines).
The types of fish sampled include important predatory game species (such as small mouth bass and striped bass), common recreational panfish species (white perch, bluegill, crappie) as well as, bottom dwelling, accumulator species with relatively high fat content (such as carp, catfish and American eel). Also, periodically MDE conducts intensive surveys of contaminant levels in selected species in specific water bodies. Past targets of intensive surveys conducted in Patapsco River/Baltimore Harbor included: white perch, channel catfish, eel, and striped bass.
Since the 1960's, the Maryland Department of the Environment has been surveying metal and pesticide levels in oysters and clams from the Chesapeake Bay and its tributaries. Prior to 1990, this effort was conducted every one or two years. In response to low levels of contaminants found and very little change from year to year, shellfish are not monitored routinely for chemical contaminants. This allows MDE to devote its limited resources towards intensive surveys if needed in areas where contamination is more likely.
While monitoring has shown no chemical contaminants at levels of concern in any of the oysters sampled, recreational harvesters should still be aware of possible bacterial contamination and avoid shell-fishing in areas that are closed to commercial shellfish harvesting.
For more information visit:http://mde.maryland.gov/programs/Marylander/fishandshellfish/Pages/privatepier_shellfish.aspx
Between 2001-2003 blue crabs were sampled in the following locations throughout Maryland:
Crabmeat and hepatopancreas (also known as “mustard” or green gland) were analyzed separately. While crabmeat was low in contaminants, the “mustard” contained elevated levels of PCBs and other contaminants in the following locations:
Specific recommendations for crab “mustard” have not been developed for all locations, however in general, it is advised that the crab “mustard” from crabs taken from the Northern Chesapeake Bay (above Magothy River) should be consumed in moderation, while “mustard” from the above locations should be eaten sparingly and avoided for the crabs from the Patapsco River/Baltimore Harbor.
Other Websites of Interest
Fish Consumption Guidelines in Neighboring States & Jurisdictions
Chesapeake Bay Regional Fish Consumption Advisories (Chesapeake Bay Program)Delaware, New Jersey, New York, Pennsylvania, Virginia, Washington DC, West VirginiaNational Listing of Fish Advisories (EPA)Information on FishFishing Information (Maryland DNR)Maryland Biological Stream Survey (Maryland DNR)Risk-Based Screening of Metals in Maryland Finfish Tissue, 1985-1997 (MDE)Fish Kills in Maryland (MDE)
Information on MercuryMercury Information (MDE)Toxicological Profile for Mercury (ATSDR)Fish Tissue Criterion for Methylmercury (EPA)
1800 Washington Boulevard, Baltimore, MD 21230