Description
The Democratic Republic of Congo (DRC) contains vast mineral reserves whose exploitation has long been viewed as a catalyst for national economic development. However, decades of mining activity have generated substantial environmental degradation and adverse social and health consequences for surrounding communities. Mining operations have altered biophysical ecosystems, disrupted socio‑economic conditions, and elevated exposure‑related health risks among populations living near extraction sites.
A systematic, independent assessment was conducted to evaluate the environmental and health impacts of mining activities, with an emphasis on waste management, control and mitigation measures, and the adequacy of emergency preparedness plans. The assessment adhered to national regulations and the environmental and social safeguard requirements of the World Bank. Fieldwork was carried out in the Provinces of Katanga, Kasai Oriental, and Kasai Occidental and included: (1) collection and laboratory analysis of surface water, groundwater, and soil samples; (2) review of occupational health and safety (OHS) conditions with noise measurements and hazard observations; (3) interviews with mining company staff, miners, community representatives, and local authorities; and (4) collection of relevant health data from surrounding populations.
Analytical results indicated that multiple contaminants exceeded national (DRC), WHO, or Quebec reference standards. Substances detected at elevated levels included Silver, Arsenic, Copper, Molybdenum, Chromium, Zinc, Manganese, Mercury, Potassium, Sulphur, Nitrites, Nitrates, and suspended organic matter. OHS assessments revealed deficiencies in noise control, personal protective equipment (PPE) usage, and exposure monitoring. Mining-related displacement further contributed to livelihood disruption and increased vulnerability among local and indigenous populations.
Key concerns included inadequate waste management, untreated liquid effluents—particularly acid mine drainage—and unsecured excavation pits. Exceedances of water and soil quality standards underscore the urgent need for strengthened environmental controls, continuous monitoring, and enforcement of mitigation measures. The findings highlight significant risks to nearby communities and support integrated environmental, occupational, and public health interventions to advance safer and more sustainable mining practices in the DRC.