The ambient air monitoring station, installed at the Old Scout Hall site on Flagstaff Road, will monitor pollutants as the plant runs on a reduced capacity while a new steel stack is built to replace the fibreglass stack that burnt down on October 13.

"This station will continuously monitor fine particulates, nitrogen oxides and sulphur dioxide," said Peter Bloem, EPA Illawarra regional manager.

Bluescope is publishing data from its own air quality monitoring on its website.

The latest results, from the period to October 27, showed "solid particles" in the air near the sinter plant hit the 100 percentile limit set by the EPA, of 20 milligrams per cubic metre.

The other 21 pollutants fell within allowable limits.

Bluescope was required by the EPA to monitor 23 pollutants as part of restart conditions.

Results for hexavalent chromium have not been published online.

A Bluescope spokesperson said the company was awaiting lab analysis results, which would soon be published.

The EPA was satisfied with the results from monitoring, which showed emission limits had not been exceeded, Mr Bloem said.

Bluescope results are available online at bluescopeillawarra.com.au, while results from the EPA's new monitoring station can be accessed by emailing epa.illawarra@epa.nsw.com.au

The EPA has also set up a website with information on the fire, revealing fibreglass from the stack that landed on nearby properties contained low levels of cobalt and chromium.

The EPA said neither element posed a risk to the environment or public health.

The fibreglass did not contain asbestos.

For more information, see epa.nsw.gov.au