Researchers found that toxins in U.S. waterways could equate to four cases of cancer in a lifetime for every 100,000 U.S. citizens. However, some experts question these claims.
Environmental groups say the decision was purely political and could result in the contamination of water supplies.
Researchers have worked out how the plant is able to absorb high quantities of the substance without dying.
The elements that make up each column of the periodic table share a set of common traits. Here, a chemist describes group 15 and the crucial role they play in life.
"Babies and toddlers are particularly vulnerable due to their smaller size and developing brains," said James E. Rogers, the director of food safety research and testing at Consumer Reports.
Exposure to arsenic-contaminated water can lead to health problems including cancer, skin diseases and heart problems.
A battery recycling plant in Los Angeles spewed lead and arsenic into the atmosphere for decades—now poor Latinos are paying the price.
Museums don't know what to do with their very cool but very old, arsenic-laced dioramas.
People from the Argentinian Andes can metabolize arsenic more quickly than most.