Household plumbing systems use PEX for pipes to supply water and carry away sewage. The term PEX stands for "crosslinked polyethylene." PEX piping is manufactured by melting high-density polyethylene ...

NEW: A Uni-Bell PVC Pipe Association official has a rebuttal to the Beyond Plastics report covered in this story. Read the detailed update here. Bennington, Vt.-based Beyond Plastics, a nonprofit ...

A report from a coalition of U.S. environmental advocacy groups has warned of the health risks of PVC plastic and urged public officials against using the material in community drinking water pipes.

Q: I’ve noticed two things about my lawn. First, there’s an area that is really green and much taller than the surrounding grass; and second, this same area is very soft. I know something is wrong, ...

A coalition of environmental organizations warned in a report Wednesday of potential health risks in replacing lead pipes with polyvinyl chloride (PVC). PVC, a low-cost plastic, is commonly used as an ...