How a ‘toxic’ chemical from a factory is killing fish in Pennsylvania

A toxic chemical used to treat asphalt is causing trouble in Pennsylvania, as residents are learning to live with it.

The chemical is called acetyl metallo, and it has been used for more than a century to treat concrete, asphalt, and concrete mixing.

But now, it is causing serious problems in Pennsylvania’s largest city.

The Associated Press spoke with local residents who say they have experienced nausea, vomiting, diarrhea, and even heart attacks.

The city of Philadelphia has said that it has no plans to remove the chemical, but has offered help to people with symptoms and plans to notify the EPA if necessary.CBS News’ David Zirin reports from Philadelphia.