Our groundwater hydrology experts contributed to a national assessment that examines the potential impact of coal seam gas chemicals on people and the environment.

The National Assessment of Chemicals associated with Coal Seam Gas Extraction in Australia assessed the human health and environmental impacts of chemicals used in drilling and hydraulic fracturing for coal seam gas (CSG) extraction in Australia between 2010 and 2012.

It was funded by the Australian Government's Office of Water Science in the Department of the Environment and Energy, and is a collaboration between the National Industrial Chemicals Notification and Assessment Scheme (NICNAS) in the Department of Health and CSIRO.

Our groundwater hydrology experts contributed two reports to the assessment that modelled the potential transportation of chemicals from surface spills and leaks into soils through to shallow groundwater, wetlands and streams. Their findings are presented in two reports:

These reports are summarised in two fact sheets:

We have also provided additional reports that provide further information on how chemicals used in coal seam gas extraction might move from deeper groundwater to other parts of the environment:

The researchers also developed a software tool to calculate predicted environmental concentrations of chemicals, which was used to inform their reports.

The National Assessment of Chemicals Associated with Coal Seam Gas Extraction in Australia reports are available from the Department of the Environment and Energy website .

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