The EPA is affirming its' commitment to air quality in the Hunter, as it commissions a statistician to re-review the ARTC coal train dust report.
Doctor Luke Knibbs from the University of Queensland uncovered the report's flaws while conducting a peer review of the contested report.
It was brought into disrepute following a leaked draft.
EPA chairman Barry Buffier says the report's conclusions can be finalised once once the methods are revised. "It's not possible to say to what extent this will alter the findings of the report," he said.