A third Portland company faces scrutiny for toxic metal pollution.
At a meeting of the Milwaukie City Council Tuesday, state environmental regulators said they will delay issuing a new air quality permit for Precision Castparts due to concerns over metal emissions.
Precision Castparts makes airplane components. One of its large factories sits on the boundary between Southeast Portland and Milwaukie.
That's also where scientists found high concentrations of nickel in moss they were studying.