re: #121 SixDegrees

Living in the Great Lakes, we hear a lot about mercury contamination and acceptable levels of exposure.

But I had never heard that there was a problem with deep-water ocean fish, which is what a lot of sushi is.

Not saying there isn’t an issue, just that I’ve never heard any warnings about it like I have for fresh water species.

The greater the predatory habit of fish, the greater the mercury content.
Hence, warnings against too much Flathead, but not about Carp.
Mercury is naturally occurring in soils, but is believed to reach the fish food chain through the air as a pollutant associated with burning coal.