A great infographic by Ghergich explaining the dangers of mercury, who it affects, and how to avoid consuming this neurotoxin. Mercury is found naturally in our environment, however, in high concentrations, it can be dangerous. Unfortunately, due to contaminated emissions from businesses such as power plants, cement plants, and chemical manufacturers, over 18 million acres of lakes, wetlands, and estuaries are now contaminated by mercury. Additionally, over 1.2 million river miles have also been contaminated, and those numbers are rising every year. Unfortunately, this means that the fish are also carrying a dangerous level of mercury as well. While 70 percent of fish have relatively low levels of mercury, and are deemed safe to eat, there are a few types of fish that should be avoided.