Ogbowuokara, O.S., Leton, T.G., Ugbebor, J.N. and Orikpete, O.F. 2023. Evaluation of atmospheric methane concentrations and growth trends in selected locations of Rivers State, Nigeria. The Journal of Engineering and Exact Sciences. 9, 11 (Dec. 2023), 17488. DOI:https://doi.org/10.18540/jcecvl9iss11pp17488.