Fish are important in a healthy diet. They are a lean, low-calorie source of protein. However, some fish may contain methylmercury or other harmful chemicals at sufficiently high levels to be a concern. ADEQ monitors contaminants in fish tissue in streams and lakes throughout Arizona and prioritizes water bodies that are popular fishing spots.

Mercury is the most common contaminant in fish tissue in Arizona. It is a toxic, persistent and bio-accumulative pollutant that is both a public health and an environmental concern. Mercury has a direct effect on the nervous system and has long been known to have toxic effects on humans and wildlife.

Fish advisories are issued on streams and lakes where contaminants are found and provide guidance to the public about safe levels of consumption of a particular species of fish. ADEQ issues fish advisories in consultation with the Arizona Game and Fish Department (AZG&F). For current fish advisories click here: http://www.azgfd.gov/h_f/fish_consumption.shtml.

Click here for additional fish consumption advise for fish with mercury.

Reports

• Fish Consumption Risk Analysis for Tonto Creek, Arizona-July 2011
• Fish Consumption Advisories - September 2015