Landfills have the potential to emit methane (CH4) which is considered as greenhouse gas, thus triggering global warming. It is necessary to identify areas that are potentially exposed to the maximum concentration of methane gas to anticipate the impact on the environment. This study aims to analyze the distribution pattern of CH4 gas emissions from the landfill and determine locations that have the potential to be exposed to the maximum CH4 concentration. The study area is located at Jalupang Landfill, Karawang District, West Java, Indonesia. An emission inventory was carried out to calculate the rate of CH4 emissions using the 2006 IPCC and USEPA (Landfill Gas Emission Model [LandGEM] version 3.03 spreadsheet) methods. Relevant activity data required for both methods were obtained from the observation done in the previous study. The results suggested that CH4 emission calculated using the IPCC method was far higher than those estimated by LandGEM of more than two times. This discrepancy was caused by the selection of parameters that are more generalized for the LandGEM as compered to the IPCC. To select the most appropriate method measurement of methane flux rate should be done in the landfill directly.

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