In a quiet residential neighbourhood on the outskirts of St. John's, chemistry professor Karl Jobst parked his pickup and crossed the street to a lush wetland.

"This is essentially industrial wastewater that's being discharged from the airport," he said.

A nearby sign warns no dumping is allowed in the marsh, which is part of a conservation area called The Gully. The irony isn't lost on him.

"It frustrates me as a scientist. It frustrates me as someone who lives in the area."

Research by Jobst's lab at Memorial University shows toxic forever chemicals are contaminating The Gully and the drinking water in several homes nearby in Torbay, N.L.

The neighbourhood is 3½ kilometres downstream from a decommissioned firefighting training area at St. John's International Airport that is listed

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