Environmental and health impacts of mining: a case study in Kenyasi-Ahafo Region, Ghana

Mining is regarded as one of the major economic activities with the ability to contribute to economic development. However, governments, the general public, stakeholder organizations and individuals have been concerned about the environmental and health implications of mining on surrounding communities. This paper investigated the environmental and health impacts of the Kenyasi-Ahafo mining activities on the local population and other nearby areas. The study employed a cross-sectional, observational and community-based study involving 150 respondents from three different communities through questionnaires and interview data collection. The study also made use of secondary data which included data on water quality from 2017 to 2021, air pollution dataset from blasting (August 2021-July 2022), and health facility record dataset from 2018 to 2021. The study revealed that mining activities have resulted in major environmental impacts, including land degradation. In addition, there is pollution which has affected mainly water resources in the municipality. Air and noise pollution were also evident in the area. The combined effects of environmental problems have ended in health implications with an associated high prevalence of diseases such as malaria, respiratory tract infections and skin diseases. The study found the effects of mining on the health of the local population are dependent on their proximity to the actively mined area. It also found that efforts by authorities to manage the mining impact on air, water and land were unsatisfactory. Lead (Pb) concentration in water sources was above the WHO guidelines for drinking water for most communities. About 92% of respondents agree that the mining activities were to blame for the disease prevalent in their area, with only 4.7% disagreeing. Interestingly, the study established that respondents’ years of staying in the community influenced their knowledge of the effect of mining on the environment ( p = 0.00132). The study recommends a review of the environmental management policy of Kenyasi-Ahafo Mines restoration efforts and intervention measures, which include afforestation, a review of operational procedures and the provision of alternative drinking water quality to the affected communities. The outcomes of this study are useful to relevant stakeholders and local authorities towards initiating plans to ensure that the environmental and health impact of the mining activities is kept to a minimum.