The authority announced yesterday foam containing PFOS (perfluorooctane sulfonate) - banned 13 years ago - has been found at Port Taranaki and at Dunedin Airport, after the airport conducted internal checks, RNZ reported.
A year-long investigation found the foam at a dozen sites nationwide.
In 2018, the EPA contacted airports around New Zealand, asking for information about the type of foam that was being used in firefighting training.
At the time, airport chief executive Richard Roberts said as far as the airport knew, the foam used at Momona had never contained PFOS.
From about 2000, when the airport began keeping such information on record, there was no record of PFOS being used at Dunedin Airport, Mr Roberts said.
Nobody was aware of it having been used before 2000, he said.
The airport did not provide a comment yesterday when asked about the foam.
PFOS foam has been linked to human health issues.
