The state government has just released the latest report into the condition of rock art on Murujuga in the Burrup Peninsula.
The report’s main findings, according to the state government, can be read below.
Key findings from the research include:
- The program’s data does not support earlier theories suggesting acid rain or deposition is contributing to damage of the rock art.
- An initial determination of ambient air quality levels considered safe for Murujuga’s rock art has been made and will be refined as the program continues.
Air quality and emissions trends
- Air quality data collected over the past 18 months aligns with previous modelling.
- Levels of key pollutants such as nitrogen dioxide and sulphur dioxide have declined since 2014.
Rock surface analysis
- The upper layer of granophyre - one of five rock types under study - shows elevated porosity in an area near Dampier. Current evidence suggests this occurred during periods of significantly higher industrial emissions in the 1970s.
- Further research will investigate these processes, including the role of microbial activity and chemical or chemo-microbial interactions.
In a media release, state Environment Minister Matthew Swinbourn said findings from the program have informed the development of interim Environmental Quality Criteria, which are now being used to guide regulation of industrial emissions on the peninsula.
The announcement comes after Mardathoonera woman Raelene Cooper this morning announced a legal challenge over Woodside’s North West Shelf extension in an attempt to compel new federal Environment Minister Murray Watt to make a determination on a legal request she made in 2022 under Aboriginal heritage laws to protect the Murujuga rock art.
“Today the government has finally released the Murujuga Rock Art Monitoring Report, late on a Friday the same day I announced my court challenge,” Cooper said.
“Clearly they don’t want it closely scrutinised to see if the claims made in the media release actually stack up with what’s in the full 800-page report.”
Greens climate change spokeswoman Sophie McNeill also criticised the government for the timing of the release.
“The real headline ... is that it confirms there has been damage to these ancient rocks, clearly stating in the summary that there is evidence of “elevated levels of porosity” close to industry at Dampier,” she said.
“It strikes me as too much of a coincidence that the government has sat on this report for six months and then tried to play down this very significant finding in the report’s summary.”