Gas　concentration　profiles　of　carbon　dioxide　(CO2),　oxygen　(O-2),　methane　(CH4)　and　nitrogen　(N-2)　are　usually　measured　during　tests　investigating　microbial　aerobic　methane　oxidation　in　landfill　cover.　However,　only　qualitative/limited　information　can　be　obtained　from　gas　concentration　profiles　by　existing　methods.　A　new　method　is　proposed　to　determine　methane　oxidation　in　soil　quantitatively　and　comprehensively,　including　methane　oxidation　efficiency,　stoichiometry,　gas　transfer　mechanism,　methane　generation　rate　and　gas　reaction　rate　distributions.　Governing　equations　are　established　based　on　mass　balance　for　O-2,　CO2,　CH4　and　N-2　at　one-dimensional　and　steady-state　condition.　Gas　transfer　mechanisms　considered　include　gas　diffusion,　advection　and　gas　reaction.　The　method　utilizes　gas　concentration　profiles　to　determine　gas　diffusion　for　each　gas　component　according　to　Fick＇s　law.　Then　gas　advections　and　reactions　can　be　determined　by　mass　balance.　The　method　is　validated　by　(i)　published　soil　column　tests　investigating　methane　oxidation　and　(ii)　a　calibrated　numerical　model　based　on　a　selected　soil　column　test.　The　new　method　is　capable　of　determining　methane　oxidation　efficiency,　stoichiometry,　gas　transfer　mechanism,　methane　generation　rate　and　gas　reaction　rate　distributions　for　CH4,　CO2　and　O-2.　(c)　2018　Elsevier　B.V.　All　rights　reserved.