Net methane emissions from a landfill in Tandil, Argentina

The dataset contains the registered atmospheric methane (CH4) concentrations and the CH4 emissions estimated from a landfill in Tandil city, Argentina. The atmospheric CH4 concentrations (ppm) were for 10 periods of 15 days each. The air samples were collected by stainless steel containers with a volume of 0.5 liters, comprising an inlet valve and an air inlet restrictor. Besides, the CH4 fluxes from the surface of the landfill cells (g m-2 d-1) were estimated by applying the static chamber technique. Finally, the gas vents' CH4 emissions (g d-1) are shown. This was estimated using the gas tracer methodology with permeable capsules filled with SF6 installed inside each gas vent. All this information was useful for estimating the net methane emissions from the studied landfill and the potential electric energy that could be generated from the CH4 released from gas vents.

本数据集收录了阿根廷坦迪尔市某垃圾填埋场的在册大气甲烷（CH4）浓度数据，以及经估算得到的甲烷排放相关数据。其中，大气甲烷（CH4）浓度（单位：ppm）的采样周期共计10段，每段时长15天。空气样本采用容积0.5升的不锈钢容器采集，该容器配备进气阀与进气限流器。此外，本研究通过静态箱法估算得到填埋单元表面的甲烷通量（单位：g m⁻² d⁻¹）。排气口的甲烷排放量（单位：g d⁻¹）亦已列明，该排放量通过气体示踪法估算得到：在每个排气口内部安装填充六氟化硫（SF6）的渗透性胶囊以开展示踪实验。上述全部信息均可用于估算本次研究的垃圾填埋场的甲烷净排放量，以及通过排气口释放的甲烷所能产生的潜在电能。