MAYOR Frank Carbone said a Badgerys Creek airport would adversely affect Fairfield.
"The council is against it because the current studies that are available are 20 years old," he said.
Cr Carbone said the council's concerns included the runway pointing towards Fairfield, which he said would generate extra traffic, noise and pollution, and the fact that it would be a 24-hour airport.
A SPOKESMAN said the council had always opposed an airport at Badgerys Creek.
"There have been no studies about the effect an airport would have on the community since an environmental impact statement was done in 1997," he said. "If the government proceeds with Badgerys Creek, the council will actively seek to ensure that environmental concerns are addressed and that the regional transport infrastructure promised is delivered."
A COUNCIL spokesman said the council welcomed progress towards a second airport, and one that was in western Sydney.
"We believe that it will bring economic benefits and, importantly, jobs that are close to where people live," he said.
MAYOR Ross Fowler said it had been intriguing watching the case for Badgerys Creek airport and the suggestions that it would bring jobs to western Sydney.
"If there is an announcement about Badgerys Creek, we will be looking to the government's commitment to quality jobs and top transport," he said. "Any proposal must benefit western Sydney."