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Non-greenhouse gas emissions

We are committed to managing non-greenhouse gas emissions to minimise any impact on neighbouring communities and the environment.

Learn about our greenhouse gas emissions and response to climate change.

Our approach to managing emissions and contamination is informed by ICMM Mining Principle 4 - Risk Management and ICMM Mining Principle 6 - Environmental Performance.  Non-Greenhouse Gas (GHG) air emissions from our operations include sulphur oxides (SOx), nitrogen oxides (NOx) and particulates. In the 2021 financial year, we strengthened our capacity to manage non-GHG air emissions by adding new performance requirements to our internal environment standard. 

Managing non-greenhouse gas air emissions

Our approach is risk based, and through the use of Source-Pathway-Receptor assessment methodology, we require operations and projects under our operational control to comply to the framework below.

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Identify impact

Identify and evaluate the impact of all air emissions, including their cumulative impact.

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Design controls

Design and implement effective controls, with legal compliance as a minimum to protect ambient air quality for the benefit of local communities and the natural environment.

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Monitor operating performance using systems that trigger effective responses to abnormal emissions, emission levels and dispersal conditions to protect human health.

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We regularly review our approach to air emissions to ensure we continue to mitigate potential impacts and manage our performance. We continue to support and actively engage in local airshed (air catchment area) forums and studies near our operations to help reduce the potential impact on our local communities and improve ambient air quality.

We report annually on the air emissions from our Australian operations to the National Pollutant Inventory which can be viewed at

Sustainability reporting

Sustainability reporting

Our sustainability performance is measured against international standards and initiatives.

Managing contamination risk

Our internal environmental standard sets out the performance requirements related to identifying, predicting, and managing contamination risks for our projects and operations. They emphasise the need to understand the risks we face, identify actual or potential contamination quickly, and use effective control strategies to address incidents.

Identify risks

Identify and assess contamination risks, using a contaminated land register to record all relevant information

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Develop action plans

Develop appropriate remediation action plans; implement effective inspection regimes and spill prevention measures in high-risk areas, with appropriate training so that our people understand their responsibilities; and Monitor performance against agreed contamination management objectives.

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Monitor performance against agreed contamination management objectives.

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We use the Source-Pathway-Receptor assessment methodology, like that for non-GHG emissions management, for regulatory compliance and to prevent negative impacts on human health. This methodology also helps us reduce long-term costs and closure liabilities.