The Mount Isa mine has been in operation since the mid-1920s, with customs clearance in the 1930s. Mount Isa`s operations are extensive and include underground and open copper and silver-zinc lead-silver mines, ore concentrators, hydroelectric dams, lead and copper smelters, a power plant and related facilities in the field of individual mining. The Mount Isa mine was previously operated under the Mount Isa Mines Limited Act of 1985. Legislation passed in 2008 provided for a three-year period for mining companies operating under special agreements, including Mount Isa mining, to pass environmental legislation under the Environmental Protection Act 1994. Mount Isa Mines have a number of sources of air emissions, including lead smelter stacks, copper smelter stacks and volatile emissions from mine transportation, ore transportation, ore processing, melting and waste management. The acid plant and various industrial activities are also sources of air emissions in Mount Isa. The committee also oversees the Mount Isa-based Lead Alliance (formerly Living with Lead Alliance), of which eHP is also a member. The lead alliance`s goal is to minimize community exposure to lead in Mount Isa through community training and behavioural change, emphasizing the importance of safe hygiene practices. For more information about Lead Alliance, please visit the Lead Alliance website. The air quality limit for lead and other contaminants is set by the company`s environmental protection authority. The limit value for lead (particles) assumes that the company does not exceed, in a commercial or sensitive location, an annual average of 0.5 g/m3 (expressed in total amount of metals in suspended particles) in a calendar year.
Monitoring data is available via the following connections: Mount Isa Mines is also required via its EA to operate a vast network of air quality monitoring stations on Mount Isa. In addition, the Ministry of Environment and Science operates a monitoring station in Mount Isa to monitor air quality.
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