Mathematical Model and Analysis of Toxicant Effect on Human Health in Fuzzy Environment

A nonlinear mathematical model is proposed and analyzed to examine the impact of a toxicant effect on human health in fuzzy environment, specifically its detrimental effects on the reproductive health of a subclass within the species. By applying stability theory, it is demonstrated that the overall species population stabilizes at an equilibrium level. Additionally, findings indicate that as the toxicant emission rate increases, the population density of the subclass severely affected by the toxicant—rendered incapable of reproduction—also rises.