MAPLE VALLEY, Wash. — A recent King County analysis of arsenic at the Cedar Hills Regional Landfill predicted arsenic emissions in a small area that extends into the community may exceed safe ...

A man standing in a laboratory, writing in his notebook. A team led by Case van Genuchten, seen here in in a laboratory in India, has found a way to extract metallic arsenic from wastewater sludge.

Arsenic is a double-edged sword. It is a known carcinogen found naturally at high levels in groundwater. But it is also an element that is critical for clean energy technologies such as solar cells.

The National Confectioners Association has further asserted that the State of Florida's report alleging elevated levels of arsenic in candy had used flawed methodology in its studies ...