Effectiveness of Environmental Impact Assessment follow-up as a tool for environmental management: lessons and insights from platinum mines along the Great Dyke of Zimbabwe

The concept of Environmental Impact Assessment (EIA) follow-up has received considerable attention in recent years. However, a number of EIA practitioners have pointed out that there is lack of EIA follow-up evidence on the effectiveness of implemented mitigation measures in practice. This study examined EIA follow-up evidence of implemented mitigation measures and their effectiveness in protecting the environment from platinum mining and processing plants operating along the Great Dyke of Zimbabwe. Using data from environmental impact statements; environmental management plans, environment monitoring reports; and views of environmental managers and selected local residents, and field observations, the study examined the utility of EIA follow-up as a tool for enhancing the effectiveness of implemented mitigation measures. The results show that EIA follow-ups are carried out with emphasis being given to procedures. The adverse impacts of sulphur dioxide; dust and noise on local residents’ health around the platinum smeltering plant put into question the sustainability of current mitigation measures. The paper overall argues that a lot more needs to be done to bridge the gap between the current state of EIA follow-up in Zimbabwe and international best practices regarding the substantive dimension of EIA effectiveness. Using results from the study, the paper highlights the limitations of the current approach to follow-up conceptualization and suggests ways to strengthen the overall effectiveness of EIA.