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Temperature influence on the variability and emission of ch4 and co2 from a former manchester landfill
Author(s):
1. Arthur Nwachukwu Nwachukwu: Williamson Research Centre for Molecular Environmental Sciences School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, UK, M13 9PL; Department of Physics, Alex Ekwueme Federal University, Ndufu-Alike Ikwo, Ebonyi State, Nigeria
2. Andrew Aondoaver Tyopine: Department of Chemistry, Alex Ekwueme Federal University, Ndufu-Alike Ikwo, Ebonyi State, Nigeria
3. Bassey Edem Ephraim: Department of Geology, Faculty of Science, University of Calabar, Calabar, Cross River State, Nigeria
Abstract:
Analysis of datasets in time order was carried out to determine the consequence of atmospheric temperature on the changes in CH4 and CO2 concentrations at a former landfill site. The Gasclam (in-borehole gas monitor) was used to collect field data of CH4/CO2 concentrations and the environmental parameters. The magnitude of the relationship of ground-gas concentration and the barometric temperature was obtained by linear regression analysis. The result reveals variability in CH4 and CO2 concentrations with poor positive relationships of 0.016 and 0.014, respectively, with barometric temperature over the whole sampling period. Despite slightly improving the R2 by taking into account their concentration over single phases of upward and downward limb temperature, single phases of upward limb temperature, and single phases of downward limb temperature, their correlations remained insignificant at a 95% confidence level. The implication is that temperature (just like pressure) is not the dominant influence on CH4 and CO2 concentrations changes at this site. Having established barometric pressure and temperature as minor controls, a recommendation was made for the establishment of other potential controls (particularly variations in the site water depth) and their degree of control.
Page(s): 109-117
DOI: DOI not available
Published: Journal: Pakistan Journal of Analytical & Environmental Chemistry, Volume: 23, Issue: 1, Year: 2022
Keywords:
Climate forcing , Explosive mixture , Climate mitigation policies , Landfill gas
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