Author(s)

Maurice Ndeye¹, Matar Sène², Doudou Diop³

¹Radiocarbon Laboratory, Institut Fondamentale d’Afrique Noire (IFAN), Cheikh Anta Diop University of Dakar, Dakar-Fann, Senegal.
²Department of Physics, Cheikh Anta Diop University of Dakar, Dakar-Fann, Senegal.
³Botanic Laboratory, Institut Fondamentale d’Afrique Noire (IFAN), Cheikh Anta Diop University of Dakar, Dakar-Fann, Senegal.

Mass balance equations can be used to quantify the level of fossil carbon dioxide (CO₂)_ff at a given site by using samples of tree leaves or tree rings. These sites are often densely populated and highly industrialized areas. In this case, in addition to the natural carbon dioxide level of the site, there are several other components that are added to it. The approaches we propose in this paper are based on the isotopic fractionation of carbon and the laws of matter conservation. Mathematical equations are derived from this and we propose approaches to establish them. Our method has allowed us to come to the conclusion of the relationship that is already found in literature. But we term this relationship in another way by introducing the fraction of carbon modern F and the proportion of CO₂ derived from fossil fuels, which will be noted (S)_ff for the following. As an indicator of the Suess Effect, we have calculated these values in our different sites. Wooded areas sites which are located in urban areas have higher value of proportion of fossil fuel (S)_ff .

Suess Effect, Radiocarbon, Mass Balance, Fossil Fuel

Ndeye, M. , Sène, M. and Diop, D. (2021) Theoretical Establishment of the Mass Balance Equation and Determination of the Proportion (S)_ff of Fossil Fuels as an Indicator of the Suess Effect. Atmospheric and Climate Sciences, 11, 114-124. doi: 10.4236/acs.2021.111008.