Herbert Hoover once described fishing as a "discipline in equality-for all men are equal before fish". The converse, unfortunately, is not true. After the release of a new government study that documents the prevalence of mercury in freshwater fish, American consumers are aware that all fish are not equal, or at least not equally good to consume. The new study was conducted by the us Geological Survey (usgs), a scientific agency run by the government. It found traces of methylmercury, a form of mercury that is readily absorbed, in every fish sampled in 291 streams across the country.
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