The Environmental Protection Agency says 10 of 13 samples taken at PS 68 showed PCB levels above the federal limit of 50 parts per million.

The chemical was found in leaking lighting fixtures.

The Department of Education says it took immediate action to replace them, adding they are evaluating ways to address the issue citywide.

While some parents were concerned, some teachers who spoke with NY1 say they think the school is safe.  [NY1]