Why do some fish contain mercury?
Posted by kathryn in Fish
Mercury is a heavy metal which occurs naturally in the environment. However it’s also present in our world as a result of pollution. Mercury is used in the manufacture of a number of common products, including: * car parts * batteries * fluorescent light bulbs * medical products * thermometers * dental amalgams When these products are not disposed of carefully, they end up in landfill. As the products degrade, mercury is exposed and free to pollute both land …