Improper disposal of mercury can impact state water supplies or be released into the air as gas emissions. Mercury is among a group of pollutants that do not break down or go away. When deposited into the environment, mercury can be converted into methylmercury, which builds up in the tissues of fish, wildlife and humans. Mercury is a potent neurotoxin that interferes with the way nerve cells function and can cause damage to the brain, kidneys and lungs. For more information, click on the links below: