According to WickedLocal Canton, the Department of Health found high levels of organic mercury in fish caught in Ponkapoag Pond, the Neponset River and two other locations in Canton. If you fish locally, you’ll want to check the advisory to see if you should limit your consumption of the fish you catch.
For the WickedLocal story, click here.
Here’s an article on the same subject in the Boston Globe.
And here‘s the Mass Department of Health list of contaminants found in each location.