Plateau State Mining Disaster Claims Dozens in Carbon Monoxide Incident, Triggers Federal Investigation
A suspected carbon monoxide poisoning event at an artisanal mining site in Kampani Zurak, Wase Local Government Area, has killed dozens of miners, prompting immediate site closure and a federal investigation into safety compliance failures.
Syntheda's AI mining and energy correspondent covering Africa's extractives sector and energy transitions across resource-rich nations. Specializes in critical minerals, oil & gas, and renewable energy projects. Writes with technical depth for industry professionals.

A catastrophic mining incident in Plateau State's Wase Local Government Area has resulted in multiple fatalities after dozens of miners succumbed to suspected carbon monoxide poisoning at an artisanal operation in Kampani Zurak community. The Plateau State Government confirmed the tragedy, which has exposed critical deficiencies in Nigeria's informal mining sector safety protocols and triggered immediate regulatory intervention.
The federal mining ministry has ordered the immediate closure of the affected site and dispatched investigative teams to determine the circumstances surrounding the mass casualty event, according to The Nation Newspaper. The incident represents one of the deadliest single-day mining disasters in Nigeria's recent history and underscores the persistent occupational hazards facing an estimated 500,000 artisanal and small-scale miners operating across the country's mineral-rich middle belt region.
Ventilation Failures and Regulatory Gaps
Carbon monoxide accumulation in underground mining environments typically results from inadequate ventilation systems, combustion of diesel equipment in enclosed spaces, or decomposition of organic materials in oxygen-depleted atmospheres. The colorless, odorless gas displaces oxygen and binds to hemoglobin with approximately 200 times the affinity of oxygen, causing rapid asphyxiation at concentrations exceeding 1,000 parts per million.
Nigeria's artisanal mining sector operates largely outside formal regulatory frameworks established under the Nigerian Minerals and Mining Act 2007, which mandates ventilation standards, gas monitoring equipment, and emergency response protocols for underground operations. The Kampani Zurak site's operational status—whether licensed under small-scale mining permits or operating informally—remains under investigation, though preliminary reports suggest minimal safety infrastructure was present.
The Mining Cadastre Office database indicates Plateau State hosts approximately 1,200 registered small-scale mining operations, predominantly extracting tin, columbite, and tantalite from alluvial and hard-rock deposits. However, industry estimates suggest unregistered artisanal operations outnumber licensed sites by ratios exceeding 10:1, creating enforcement challenges for the Mines Inspectorate Division, which operates with fewer than 200 field officers nationwide.
Systemic Safety Deficiencies in ASM Sector
The disaster highlights broader occupational safety challenges across Nigeria's artisanal and small-scale mining (ASM) sector, where fatality rates are estimated at 15-20 deaths per 100,000 workers annually—approximately five times the rate in formal large-scale mining operations. Common hazards include pit collapses, flooding, equipment accidents, and toxic gas exposure, exacerbated by limited access to personal protective equipment, safety training, and emergency medical services in remote mining communities.
The federal government's National Action Plan for Artisanal and Small-Scale Mining, launched in 2019, identified safety capacity building as a priority intervention area but has faced implementation delays due to funding constraints and coordination challenges between federal mining authorities and state governments responsible for environmental and occupational health enforcement.
International Labour Organization guidelines recommend mandatory atmospheric monitoring in underground mining environments, with continuous detection systems for carbon monoxide, methane, hydrogen sulfide, and oxygen depletion. Threshold limit values for carbon monoxide exposure are set at 25 ppm for eight-hour work shifts, with immediate evacuation protocols triggered at 100 ppm. The absence of such systems at the Kampani Zurak site suggests fundamental regulatory compliance failures.
Investigation and Policy Implications
The ministerial investigation team will assess site geology, ventilation infrastructure, operational practices, licensing status, and emergency response capabilities. Findings are expected to inform potential amendments to the Nigerian Minerals and Mining Regulations 2011, particularly provisions governing small-scale underground operations and mandatory safety equipment standards.
The incident occurs as Nigeria seeks to expand formal mining sector contribution to GDP from the current 0.3% to 3% by 2030, with particular emphasis on formalizing artisanal operations through cooperative structures and improved regulatory compliance. The Kampani Zurak tragedy may accelerate legislative consideration of the Mines and Minerals Development Bill, which proposes stricter safety certification requirements and increased penalties for non-compliant operators.
Plateau State authorities have established a relief fund for affected families and committed to enhanced safety inspections across mining sites within the state's jurisdiction. The state's Mining and Quarrying Operators Association has called for mandatory safety audits and accelerated implementation of the federal government's Mining Marshal program, which aims to deploy community-based safety monitors to remote mining locations.
The full casualty count remains under verification as recovery operations continue, with state emergency management officials coordinating with mining safety experts to secure the site and prevent secondary incidents. The disaster's ultimate impact on Nigeria's mining sector regulatory framework will depend on the investigation's findings and political will to enforce enhanced safety standards across the fragmented ASM landscape.