Assessment of Spatio- Temporal Variation of Methane Gas Emission from Landfills in Kano Metropolis, Nigeria

This study assessed the emission of methane (CH4) gas from four (4) government approved landfills within Kano Metropolis with a view to providing a database on Methane gas emission for possible use by renewable energy projects and for effective urban environmental management and governance. A Methane gas detector (E6000 Portable Multi-gas detector) was used to assess methane from the landfills in the morning (8:00am – 12:00noon), afternoon (12:00pm – 3:00pm) and evening (4:00pm – 6:00pm) for twelve (12) days (for about 2 weeks) between the month of April and May 2023. It was discovered that the rate of methane gas emission was higher in the evenings, the rate of methane gas emission differs significantly across the selected landfills and the environmental implication of methane gas emission in the study area was manageable. From the study, the rate of Methane gas emission within Kano metropolis is reasonably high and okay for renewable energy generation. So, it is advisable that the government utilize it for different purposes. Also, more government approved dump sites was recommended due to the fast growth rate and development within Kano Metropolis and the government still needs to do more in providing a more appropriate means of waste disposal in some of the areas within the Metropolis.