From Argentina’s mercury-tainted rivers to Ghana’s galamsey-threatened water sources, experts warn that governance, enforcement and public health responses must tighten, and that the World Health Organization (WHO) should be the guiding influence shaping the way forward in Ghana.
The global story of toxic metals and contested lands continues to play out across continents as researchers firmly link mercury pollution to illegal gold mining in Brazil and arsenic contamination in Argentina.
The clear indications from these two countries underscore the urgent questions for Ghana: are officials adequately addressing the health risks from illegal mining, and is the government taking the threat seriously enough?
WHO’s latest guidance on safe drinking water and exposure to toxic pollutants offers a framework for Ghana to strengthen its response.
In Brazil, indigenous Munduruku communities report mercury poisoning linked to illegal mining, with women fearing pregnancy and children losing motor function, vision and hearing. And in Argentina, arsenic levels in groundwater are well above safe limits, causing bone pain, skin problems and cancer risks, especially for children and the elderly.
Ghana faces these same challenges: illegal small-scale mining (galamsey) that contaminates rivers and groundwater with mercury, arsenic, fluoride and other toxins, threatening drinking water and public health.
A long-term price to pay
With the ongoing tensions between law enforcement and those who make a living from illegal mining and have done so for decades in mining districts, the question is: are the current measures enough to prevent contamination of water sources used by communities, farmers and small businesses?
Despite recent WHO guidance emphasising safe drinking water, regular monitoring, community-level risk communication and rapid response systems for water contamination events, the most recent statement from the government was simply to assure consumers that all the at-risk foods are perfectly safe and that galamsey has not made staple foods unsafe for consumption.
The Latin American cases show long-term health costs, including cancer risks and developmental impacts on children. It should be apparent to Ghana that this means that without robust testing and treatment, similar problems will occur here, if they haven’t done so already, undermining productivity, health and growth in mining regions.
For the average Ghanaian household, having ready access to safe water that is affordable is a basic challenge. Added to this is a need for improved and transparent data on water quality and timely remediation if and when contamination is detected.
The cases of Argentina and Brazil highlight the critical role of government action, environmental agencies and independent civil society in monitoring, enforcement and public health protection. In Ghana, questions will persist about whether regulators have the resources and political will to police illegal mining, safeguard water supplies and communicate risk clearly to communities.
The Argentina-Brazil stories reinforce the imperative for Ghana to tighten regulations around mining, invest in water infrastructure and ensure communities are informed and protected.
Lest we forget, mercury poisoning symptoms can include tremors, cognitive issues, sensory loss and reproductive health impacts; exposure often stems from illegal mining (galamsey) activities.
Arsenic exposure through contaminated drinking water can cause skin lesions, cancers and organ damage, with vulnerable groups, including pregnant women and children, at heightened risk.
The challenge is to ensure that we are responding appropriately to the danger staring us in the face.
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