Review on effect of dumpsite leachate to the environmental and public health implication

Abstract

Over the years, there has been an increase in the rate of environmental pollution due to improper disposal and management of dumpsite waste. Leachate being generated as a result of the moisture associated within dumpsite, amount to contain various microbial pathogens and hazardous substance like cyanides, heavy metals and other chemicals acquired from the dumpsite. This can serve as a risk factor to the environment and public health when there is leachate migration. The migration of leachate into the environment potentially results in the contamination of soil, food products, animals, ground water, surface water and the air environment’ which in turn affect the health of human especially those who consumes from the contaminated products, those who inhabits around the dumpsite and other vulnerable like; young children, waste workers and immunocompromised persons. In Nigeria, though there are municipal waste dumpsites across the nation, these sites are below standard and are not properly managed. Being a great concern to the society, the need for proper design and reconstruction of a well-engineered landfill cannot be over emphasized, among others. This paper will therefore review the environmental and public health implication of dumpsite leachate so as to create more awareness on the need for proper waste management in Nigeria. It concludes by recommending some proper means of waste disposal and management which could be considered for a better health and environment in Nigeria.

Investigation of leachate infiltration on groundwater using georesistivity and natural electric field method around Ojoou-Olayanju’s dumpsite, Ada, southwestern Nigeria

“…In regards to this, the use and application of geophysical method(s) in environmental study is not to assess the quality of water (such as physical and chemical parameters of water) in the subsurface but to assess the extent or degree of interaction or communication between the aquiferous medium and the contaminated zone, since leachate's pathways to aquiferous media are chiefly governed by gravity [24]. Under the influence of rainfall, gravity permits leachates to flow vertically and laterally within the subsurface until it is able to reach or interact with the nearest aquifer along the flow path [52].…”

Solid waste management: Case of the cities of Rabat, Sale, and Temara

“…Moroccan household waste contains a high content of organic matter (60%–70% of weight) (Dahchour & Hajjaji, 2020; El Fadili, Ben Ali, Touach, et al., 2022; Mabrouki et al., 2021). Solid wastes present severe environmental problems, notably the pollution of soil, surface water, and groundwater by leachate discharges formed during the fermentation of the waste (Daniel et al., 2021; Tesseme et al., 2022). In addition, the waste transportation process releases carbon dioxide, the most important greenhouse gas, into the atmosphere (Bakraoui et al., 2018).…”

Examination of bacteria content of leachate concentration in open dumpsites, at Gwagwalada, Federal Capital Territory, Abuja, Nigeria

“…Domestic, industrial and clinic waste dumpsite contain numerous number of pathogenic and opportunistic bacteria [7]. Some of which include; Athorobacter, Bacillus, E. coli, Kliebsiella, Micrococuss, Proteus, Serratia, [13,1].…”