New federal standards for mercury, the heavy metal with a toxic impact on humans and animals, have been released, reports The New York Times.
Methylmercury, which is the most potently toxic form of mercury, was found to be widespread in the Northeast. This includes lakes, rivers, forests, and marshes.
Mercury is released into the air when coal is burned. It causes neurological disorders in humans, especially children, causing learning disabilities. Mercury's dangers go further: it causes up to 100,000 heart and asthma attacks per year, reports the Environmental Protection Agency.

