Asiwaju Kunle Kalejaye SAN, Eagle102.5 FM Ilese-Ijebu
The recurring gas emissions reported in Ijebu-Ode, Ijebu-Igbo and Ago-Iwoye have raised serious concerns about public health, environmental safety and the need for urgent government intervention in Ogun State.
What should have been an ordinary school day reportedly turned into a frightening experience when more than 100 students and teachers were taken to hospitals after inhaling a foul-smelling substance. The recurrence of the emissions and concerns about their spread to neighbouring communities have heightened public anxiety.
As the situation continues to attract attention, there is an urgent need to establish the scientific causes of the emissions, address public fears and ensure that appropriate legal and environmental safeguards are implemented.
Between Science, Rumours and Traditional Beliefs
In the absence of clear and comprehensive explanations, various theories have emerged about the possible causes of the gas emissions.
Some residents have speculated about chemical contamination, while others have interpreted the incident through the lens of traditional beliefs and Ijebu cultural practices surrounding the burial of a deceased Awujale.
Some have suggested that the emissions could be connected to perceived departures from established burial traditions, while others have linked the phenomenon to supernatural beliefs and the politics of royal succession.
The Awujale occupies a significant position in Ijebu history and traditional institutions. The throne remains an important symbol of cultural identity, unity and authority across Ijebuland.
However, while these beliefs may help explain the fears and interpretations circulating within the community, they cannot substitute for scientific investigation. Establishing the cause of the emissions requires credible environmental testing, geological assessment and transparent communication from the relevant authorities.
The people deserve evidence-based answers that address their concerns and protect their health.
The Scientific Questions Behind the Gas Emissions
Reports concerning the incidents have raised questions about the possible presence of hazardous gases, including methane and hydrogen sulphide.
These substances have different properties and pose distinct risks to human health.
Methane is colourless and odourless. Although it is not ordinarily classified as a direct poison, it can displace oxygen in confined or poorly ventilated spaces, potentially causing suffocation. It is also highly flammable and can create an explosion hazard when it accumulates at combustible concentrations.
Hydrogen sulphide, on the other hand, is a toxic gas commonly associated with the smell of rotten eggs. Exposure can irritate the eyes and respiratory system and, at high concentrations, rapidly impair the nervous system and cause collapse or death.
The possibility of exposure to either gas warrants serious attention, particularly when children and other vulnerable people are involved.
However, the precise composition and concentration of any gas detected in Ijebu-Ode and neighbouring communities must be established through verified laboratory results and official environmental assessments.
Claims that concentrations reached 13,500 parts per million, or that particular geological structures are responsible for the emissions, should be independently verified and supported by publicly available technical reports before they are treated as established facts.
Is a Geological Fault Responsible?
One theory that requires careful investigation is whether underground geological formations are contributing to the release of gas.
Faults and fractures in the Earth’s crust can provide pathways through which naturally occurring gases migrate towards the surface. Depending on local geological conditions, such emissions may originate from underground deposits, decomposing organic matter or other geological and environmental processes.
The possibility that a geological fault or underground gas accumulation is responsible for the reported incidents therefore deserves scientific examination.
However, attributing the Ijebu-Ode emissions specifically to the Ifewara-Zungeru fault system requires geological evidence. Investigators would need to establish the precise location of the emissions, analyse gas samples, examine underground formations and determine whether any relationship exists between the suspected geological structure and the affected locations.
Such investigations are essential to distinguish between natural gas seepage, human-induced releases and other possible sources of hazardous emissions.
Lessons from Lake Nyos in Cameroon
The dangers associated with naturally occurring gases are not limited to Nigeria.
In August 1986, Lake Nyos in Cameroon released a massive cloud of carbon dioxide that killed approximately 1,746 people and thousands of animals.
The disaster demonstrated how naturally occurring gases can accumulate under particular geological conditions and suddenly escape, creating a deadly threat to nearby communities.
However, the Lake Nyos disaster involved carbon dioxide, and its mechanism was different from the possible methane or hydrogen sulphide emissions being discussed in connection with Ogun State.
The lesson is not that the two incidents necessarily share the same cause, but that gas-related environmental hazards must be investigated promptly, using appropriate scientific methods and effective monitoring systems.
Nigeria must take such risks seriously rather than wait for an environmental emergency to escalate into a major disaster.
Can Human Activities Worsen the Situation?
Another important question is whether certain human activities could contribute to the release or movement of underground gases.
Borehole drilling, quarry blasting and other activities involving the ground can alter local geological conditions. Depending on the geology, drilling may encounter gas-bearing formations, while excavation and blasting can disturb rock structures.
Nevertheless, it would be premature to conclude that borehole drilling or quarry operations are responsible for the Ijebu-Ode emissions without supporting evidence.
A proper investigation should identify existing boreholes, quarry sites and other potentially relevant activities around the affected locations. Geological and environmental experts should then determine whether any of these activities have contributed to the problem.
Where credible evidence identifies a risk, the relevant authorities should introduce appropriate restrictions and enforce safety standards.
The precautionary principle should guide decisions where there is a credible threat to human life, especially in schools and densely populated communities.
Government Response Must Go Beyond Emergency Treatment
The Ogun State Government’s reported response, including arrangements for the treatment of affected students, community engagement and the deployment of personnel to monitor the situation, represents an important starting point.
The reported escalation of the matter to relevant federal agencies is also significant because the investigation may require specialised geological, environmental and public health expertise.
However, emergency treatment alone cannot provide a lasting solution to a recurring environmental hazard.
The authorities must establish a clear chain of responsibility for investigating the emissions, communicating findings and protecting residents.
This should include regular environmental monitoring, the publication of verified test results, medical follow-up for affected persons and the identification of any locations where temporary evacuation may be necessary.
Schools and other public institutions in affected areas should receive specific safety guidance. Where authorities identify an immediate danger, activities should be suspended until the sites are declared safe.
Public communication must also be timely and transparent to prevent speculation from filling the information gap.
The Legal Responsibility to Protect the Environment
The gas emissions also raise important questions about environmental governance and the protection of public health.
Section 20 of the 1999 Constitution of the Federal Republic of Nigeria, as amended, provides that the state shall protect and improve the environment and safeguard the country’s water, air, land, forest and wildlife.
Although this provision establishes an important environmental objective, its constitutional enforcement must be understood alongside the applicable legal framework.
The relevant environmental laws and regulations, including applicable Ogun State legislation and federal environmental and safety requirements, should be examined to determine the precise powers available to the authorities.
The Ogun State Government and the appropriate regulatory agencies must establish whether any industrial, commercial, construction, drilling or quarrying activities are contributing to the emissions.
Where violations or dangerous practices are identified, enforcement measures should follow the applicable law.
The protection of public health must take precedence over commercial convenience where credible evidence establishes an immediate danger.
Why Schools Need Effective Gas Monitoring Systems
The reported involvement of students and teachers makes the situation particularly concerning.
Children should not be exposed to preventable environmental hazards while attending school. Schools in areas identified as potentially vulnerable should therefore be included i byn an appropriate risk-assessment and monitoring programme.
Depending on the gases identified, monitoring equipment may need to detect specific substances and measure their concentrations. Methane detectors, hydrogen sulphide sensors and oxygen monitors serve different purposes and should be selected according to the results of a professional risk assessment.
The installation of sensors alone, however, is not enough. Schools also require clear emergency procedures, staff training, evacuation arrangements and reliable communication channels with emergency responders.
Underground monitoring may be appropriate where a geological investigation establishes that subsurface gas migration is occurring. However, the type and location of monitoring equipment should be determined by qualified experts rather than adopted without considering the area’s specific conditions.
Most importantly, school authorities must know when to suspend activities, evacuate buildings and seek emergency assistance.
Immediate Measures to Protect Residents
In view of the recurring reports, the following measures deserve urgent consideration by the Ogun State Government and relevant agencies:
First, conduct an independent scientific investigation. Qualified environmental scientists, geologists and public health specialists should identify the gases involved, establish their sources and determine the extent of the affected areas.
Second, publish verified findings. Residents should receive regular updates explaining the investigation’s progress, the risks identified and the precautions they should take.
Third, assess borehole drilling and quarry operations. Authorities should review activities around affected locations and impose temporary restrictions where scientific evidence or a credible immediate risk justifies them.
Fourth, strengthen school safety measures. Schools in affected areas should receive appropriate gas-detection equipment, emergency procedures and evacuation plans based on a professional risk assessment.
Fifth, establish a reliable early-warning system. Residents, school administrators, health workers and emergency services should have a clear channel for reporting suspected emissions and receiving verified safety alerts.
Sixth, provide medical support and follow-up. People affected by the incidents should receive appropriate medical assessment, while health authorities should monitor for further cases and investigate possible patterns of exposure.
Finally, ensure effective legal enforcement. Where investigations reveal violations of environmental or safety regulations, the relevant agencies should take lawful and proportionate enforcement action.
Protecting Ijebuland Through Science and Accountability
The recurring gas emissions reported in Ijebu-Ode, Ijebu-Igbo and Ago-Iwoye must not be dismissed as a passing scare.
They demand a coordinated response that combines scientific investigation, public health protection, transparent communication and effective legal enforcement.
Cultural traditions remain an important part of Ijebu identity, but determining the cause of a potentially dangerous environmental incident requires verifiable evidence.
Likewise, government intervention must go beyond treating those who have already been affected. It must identify the source of the emissions, establish the level of risk and prevent further exposure.
The ultimate objective is straightforward: protect lives, restore public confidence and ensure that residents can live, work and attend school without fear of an unexplained environmental hazard.
The air we breathe is essential to life. Protecting its safety is a responsibility that government, regulatory agencies, community leaders and residents must take seriously.
