Monitoring of Subsurface Emissions and the Influence of Meteorological Factors on Landfill Gas Emissions: A Case Study of a South African Landfill

The government-accredited GA 2000 landfill gas analyzer was used to monitor the (methane (CH4) and carbon dioxide (CO2)) generated from subsurface of a landfill. Eighteen sample probes were constructed placed approximately 100 m apart on boundaries site. monitoring gases conducted over period two years, taking into consideration different seasons year. Results study show that as LFG migrates toward in subsurface, higher CO2 levels are recorded when compared CH4. This could be result oxidation process some other factors present CH4 emissions ranged 0.54 2.22% v/v 2020. For year 2021, concentration 0.24% 2.33% v/v. In addition, for 2020 4.66 6.37% 3.5 6.56% Furthermore, gaseous concentrations found surrounding active cells, where there is currently deposition municipal solid waste (MSW). However, situated areas far away lower levels. recommends should continuous emission Thohoyandou due results obtained temporal variation. Frequent will help prevent potential risk fire hazards pollution future.