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The impact of ISO 14001 Environmental Management System (EMS) on waste management, noise level, air quality, energy consumption, and number of reported environmental incidents as key environmental performance indicators was assessed. The assessment was based on annual and monthly environmental data and report from the selected gold mining companies (Gold Field Ghana Limited (GFGL) and AngloGold Ashanti (AGA)) before and after the implementation of the management system. Interviews with environmental managers and staff as well as field observations were also conducted. The results show that the implementation of ISO 14001 EMS by the two gold mining companies led to significant environmental improvements, particularly in waste management, reported environmental incidents, and energy consumption. Segregation of waste was adopted in both companies to ensure appropriate disposal mechanisms to mitigate pollution. Energy consumption significantly decreased in AGA following certification because of the energy conservation policy adopted by the company. In addition, the implementation of the standard brought significant increase in the total number of reported environmental incidents due to the incident reporting protocol inherent in the environmental management system. In all, it was clear that the management system is related to the environmental objectives and targets of the individual organisations and commitment towards fulfilment of the set objectives.
Fei‐Baffoe et al. (Tue,) studied this question.