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Sustainability > Environment

Air Emissions

We design facilities and conduct our operations in ways that control and reduce air emissions. All Barrick operations manage their air emissions in accordance with local laws, regulations, and permit requirements, including the use of dust suppressant, dust collection systems, and scrubbers.

Barrick’s mining and processing activities have the potential to emit regulated air pollutants, including particulate matter, sulfur dioxide, nitrogen oxides, carbon monoxide, and mercury. Barrick reports on releases of air emissions through applicable government reporting programs, such as Canada’s National Pollutant Release Inventory, the United States’ Toxic Release Inventory, and the United States’ Greenhouse Gas Reporting Program. We also voluntarily report greenhouse gas emissions through the Carbon Disclosure Project (CDP).  In 2017, we committed to supporting the voluntary recommendations of the industry-led Financial Stability Board Task Force on Climate-Related Financial Disclosures (TCFD).

Dust

Dust is the most common air emission at our mine sites. We suppress dust emissions from many activities including roads, crushers, and conveyor belt systems through the application of water to roads, the operation of water sprays and dust collection systems at point sources ? A localized and stationary pollution source., and the application of natural or synthetic dust suppression products where suitable.

Managing Dust

We manage dust through the application of water to roads, the operation of water sprays and dust collection systems at point sources.

PM10 Emissions ? Barrick reports emissions of air pollutants in voluntary disclosures consistent with each operation’s local laws, regulations and permit requirements. PM10 emission declines between 2014 and 2015 reflect divestment of properties and changes in Barrick’s reporting boundaries. Metric Tonnes

Sulfur & Nitrogen Oxides

Our operations have the potential to release sulfur and nitrogen oxides (SOx and NOx) to the atmosphere, primarily through fuel combustion or processing certain types of ores. We work to manage these emissions through controls such as low NOx burners, selective catalytic reduction (SCR) for stationary sources, and scrubbers. Information on SOx and NOx emissions is collected and reported in jurisdictions such as Nevada. In other jurisdictions, mines may not routinely collect this data where there are no permit requirements to do so.

Sulfer and Nitrogen Oxides

We work to manage these NOx and SOx through controls such as low NOx burners, selective catalytic reduction (SCR) for stationary sources, and scrubbers.

Nitrogen Oxides ? Barrick reports emissions of air pollutants in voluntary disclosures consistent with each operation’s local laws, regulations and permit requirements. Emission declines between 2015 and 2016 reflect clarification in reporting to only include stationary sources. Tonnes

Sulfur dioxide ? Barrick reports emissions of air pollutants in voluntary disclosures consistent with each operation’s local laws, regulations, and permit requirements. Emission declines between 2014 and 2015 reflect divestment of properties and changes in Barrick’s reporting boundaries. Tonnes

Mercury

At a number of our operations, the ore we process naturally contains mercury that can be released as a vapor during processing. Barrick is actively engaged in closely monitoring and managing mercury emissions, as well as finding ways to reduce them. Depending upon the mercury concentration in ore and other risk factors, Barrick employs a variety of controls, including scrubbers, condensation towers, and activated carbon filters to trap mercury before it can be discharged to the atmosphere.

Mercury Management

Barrick employs a variety of controls, including scrubbers, condensation towers, and activated carbon filters to trap mercury before it can be discharged to the atmosphere.

Mercury Air Eimssions ? Mercury emissions declines between 2014 and 2015 reflect divestment of properties and changes in Barrick’s reporting boundaries. Tonnes

See Waste for information on elemental mercury and mercury compounds.

Greenhouse Gas Emissions

Barrick understands the fundamental link between energy use and climate change, and views climate change as a company, community, and global concern. We realize that effective energy management, including energy efficiency programs, will result in GHG reductions. For this reason, our climate change efforts are focused on energy management. See our Climate Change page for a full discussion of our approach to managing greenhouse gas emissions.

Greenhouse Gas Emissions

Barrick has set a goal to keep its current GHG emissions flat in the short term and is targeting a 30% reduction in GHG emissions by 2030, from a 2016 baseline of 3.5 MT CO2e emitted.

GHG EmissionsTonnes CO2e

Ozone-Depleting Substances

Barrick operations do not manufacture ozone-depleting substances ? Ozone-depleting substances (ODS) generally contain chlorine, fluorine, bromine, carbon, and hydrogen in varying proportions. (ODS) or operate equipment that would use them. We also do not use materials that contain ozone-depleting substances, except for fire extinguishers and some refrigerants in air conditioning units; therefore, emissions of these substances are minimal.

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