State officers say poisonous perpetually chemical substances have contaminated fish on two standard lakes on the Wisconsin River and are warning anglers to restrict how a lot they eat.
The Division of Pure Assets and Division of Well being Companies issued a well being advisory Wednesday for a number of fish species in Fortress Rock Lake and Lake Mohawksin.
Current exams of fish sampled in March and April revealed elevated ranges of PFOS, certainly one of a category of artificial chemical substances recognized broadly as PFAS that has been tied to most cancers and different well being issues.
The companies say individuals ought to eat bluegill, yellow perch and black crappie from Fortress Rock Lake in Adams and Juneau counties not more than as soon as every week. Carp ought to solely be eaten as soon as a month due to PCB contamination.
On Lake Mohawksin close to Tomahawk, individuals are cautioned to eat black crappie, pumpkinseed and rock bass not more than as soon as a month, although the companies say it’s suitable for eating bluegill and yellow perch as soon as every week.
Persons are additionally studying…
The advisories are based mostly on steering from the Nice Lakes Consortium for Fish Consumption Advisories, which recommends a restrict of 1 meal per 30 days when concentrations are above 50 components per billion and never consuming fish in any respect with concentrations above 200 ppb.
Fish taken from Lake Mohawksin had a median focus of 41 ppb, although one registered 170 ppb. Fish taken from Fortress Rock Lake had PFOS concentrations as excessive as 54.4 ppb, with a median of 35.4.
Wisconsin has issued PFAS-related consumption advisories for greater than a dozen our bodies of water, together with Black Earth Creek, lakes Monona, Waubesa and Kegonsa, Starkweather Creek and the decrease Yahara River in Dane County together with parts of the Mississippi River, Lake Superior and Inexperienced Bay.
The DNR publishes advisories for particular species from across the state in an annual guidebook out there on the company web site.
Artwork of the On a regular basis: A recap of August in pictures from Wisconsin State Journal photographers