What Is Mercury Poisoning?
2. Mercury In Fish
Mercury is a naturally occurring substance and there have always been trace elements of it in the food that we eat. Mercury is often used in industry, however, and industrial waste, including high levels of mercury, often finds its way to the sea. This then means that the fish and other animals living in the sea will contain more mercury themselves.
When people eat the fish, then they too will absorb more mercury. Those fish that tend to have the highest levels of mercury are the large, predatory species. This is because they prey on fish other fish that contain mercury, meaning they ingest some of the metal every time they have a meal.
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