PHILADELPHIA (CBS) — A leak of phthalic anhydride, a material used in the making of plastic that goes into fiberglass, prompted a hazmat investigation in South Philadelphia on Tuesday.

It happened around 3 p.m. at Ashland’s manufacturing located in the 2800 block of Columbus Boulevard.



“The phthalic anhydride was released into a containment dike on the plant property. Vapor from the molten material condensed in the air, causing flakes of the material to settle on or just outside the plant property,” said a spokesperson for Ashland.

Columbus Boulevard has been shut down near Oregon Avenue due to the incident. Police have asked businesses in the area to shelter-in-place with doors closed and their air conditioning off.



No injuries have been reported.

The cause of the accident is under investigation.

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