

Air quality in and around our sites is important for our employees, communities and the environment. We monitor and report air emissions to comply with air quality laws and regulations in the countries where we operate.
Air emissions from our Manitoba operations are minor and related to vent and fugitive dust emissions. We have a particulate monitoring program in place to ensure that particulates, which may contain metals, remain below regulatory limits. Readings are reviewed by the government and external compliance auditors.
Each year, a dust management plan is implemented at Flin Flon in line with the annual tailings deposition plan and weather conditions. Water cover on tailings areas is controlled to reduce the potential for dust generation. We use a variety of methods for dust control on active tailings dams, such as creating covers of calcium chloride sand, adding chemical binder on exposed beaches, as well as utilizing a straw covering where possible. To minimize dust generation from vehicles, we have paved about 50% of the main in-plant roads.
Dust is also the most significant constituent of potential air quality issues at Constancia. We use a dust suppressor on the main roads to reduce airborne particulates and we regularly monitor air quality in nearby communities.