Air pollution has become a pressing public health concern in Lagos, one of Africa's most densely populated and economically active cities. The World Health Organisation identifies air pollution as a major health risk, with fine particulate matter capable of penetrating deep into the lungs and entering the bloodstream. Prolonged exposure has been associated with cardiovascular and respiratory diseases, stroke, and lung cancer.
The challenge in addressing air pollution in Lagos lies in its invisible nature, making monitoring crucial. The Lagos State Environmental Protection Agency (LASEPA) has incorporated air-quality monitoring into its environmental regulatory responsibilities, providing Air Quality Index information to indicate conditions in different parts of the state. This move aims to raise awareness and inform decision-making.
In 2025, LASEPA collaborated with partners, including the University of Lagos, the Lagos Metropolitan Area Transport Authority (LAMATA), and AirQo, to validate a Pan-Sectoral Air Quality Management Action Plan for Lagos State. The plan emphasizes a pan-sectoral approach, recognizing that Lagos cannot clean up its air through environmental regulation alone. The sources of pollution are deeply ingrained in the everyday life of the megacity.
Transport, generators, industrial operations, construction, waste burning, and other combustion activities contribute to emissions in Lagos. According to LASEPA's General Manager, Dr. Babatunde Ajayi, vehicular emissions account for an estimated 70% of the choking smog affecting Lagos. In 2025, over 12,000 vehicles were checked under the state's emissions-control efforts, highlighting the need for a comprehensive approach to address pollution.
The quality of Lagos' air is closely tied to the quality of its transportation system. A poorly maintained vehicle emitting smoke into a traffic queue not only affects the driver behind it but also pedestrians, roadside traders, traffic officials, transport workers, and other motorists. The fight for cleaner air requires better public transport, improved traffic management, cleaner energy, stronger emissions standards, and more efficient urban planning.
The growing recognition of the need to measure pollution before controlling it marks a significant change in Lagos' approach. Air-quality monitoring stations and sensors help identify pollution hotspots, establish patterns, and provide evidence for regulatory decisions. By analyzing data, authorities can ask precise questions about pollution, including its concentration, sources, trends, and impact, ultimately leading to more effective interventions.
Exposure to air pollution is not evenly distributed in Lagos, with those having the fewest options to escape polluted environments often carrying the greatest burden. LASEPA's regulatory role remains critical, but enforcement alone cannot produce lasting behavioral change. Clean air must become a shared responsibility, with residents, industries, and government working together to address the issue, invest in reliable monitoring, and make air-quality information more accessible.
Key points
- Air pollution in Lagos poses significant health risks, with fine particulate matter linked to cardiovascular and respiratory diseases, stroke, and lung cancer.
- The Lagos State Environmental Protection Agency (LASEPA) has incorporated air-quality monitoring into its environmental regulatory responsibilities.
- A Pan-Sectoral Air Quality Management Action Plan has been developed to address pollution in Lagos through a comprehensive approach.
