Oceana in the USA says about this video:
Video: Mercury from Source to Seafood
Posted Mon, Jul 2, 2012 by Michelle Cassidy
The health benefits of seafood are well-documented, but some people avoid eating it after hearing reports of high mercury levels. This video might help make things a little clearer.
Produced by the Dartmouth Toxic Metals Superfund Research Program, the video explains how mercury gets into water and then into the fish that we eat. Burning coal releases mercury into the air and increases its concentrations in our waterways. Depending on where in the food chain a fish is, it could have low levels of mercury or high levels that could be unhealthy.
Eating seafood has many health benefits—it has important Omega 3 fatty acids and is low in the saturated fats you find in other animal proteins, especially red meat. Many fish are safe and healthy to eat. While shark, swordfish, king mackerel, tilefish, and tuna have higher mercury levels, there are plenty of other options that are safe to eat. You can find responsible and healthy seafood choices in our Sustainable Seafood Guide.
Check out the video, which also features Oceana senior scientist Kim Warner, to learn more about how mercury builds up in the environment and how to stay healthy while including seafood in your diet.