Assessment of solid waste and dumpsite leachate and topsoil

Oketola, Adebola A.; Akpotu, Samson O.

doi:10.1080/02757540.2014.907280

Cited by 40 publications

(15 citation statements)

References 19 publications

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“…This study revealed that the MSW generated in Lagos and Ibadan was mainly from household, commercial, agricultural, healthcare and industrial sources. (Oketola and Akpotu, 2015;Adeyi and Adeyemi, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, biological and chemical materials that are leached into water percolating through solid wastes that are undergoing decomposition (leachate) was not treated and may finally contaminate the groundwater and affect the surrounding environment. Previous study have shown that a large number of compounds, many of which are hazardous to human health and the environment, are present in dumpsites leachate and topsoil in Nigeria (Oketola and Akpotu, 2015). Some of the compounds such as heavy metals, polycyclic aromatic hydrocarbons, and polychlorinated biphenyls are persistent, bio-accumulate, and travel long distance.…”

Section: Educational Qualificationmentioning

confidence: 99%

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Potential occupational health effects of municipal solid waste management in Nigeria, the case of Lagos and Ibadan

Adeyi¹,

Adeyemi²

2019

Ife Journal of Science

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Municipal Solid Waste Management (MSWM), which include generation of wastes, collection, transportation, recycling and reuse, and disposal poses threat to humans especially the waste handlers and managers and the entire ecosystem. In this study, relevant data and information about the health hazards associated with MSWM were gathered using structured questionnaires administered to three different categories of municipal solid waste (MSW) handlers namely; Domestic Waste Handlers (DWHs), Highway Waste Managers (HWMs) and Dumpsite Waste Managers and Scavengers (DWMSs) in Lagos and Ibadan. Site visits and interviews were conducted to evaluate the general health status of the waste managers and the current MSWM practises in the cities. The results showed that personal protective equipment were not used by many of the managers; wastes were not segregated at the point of generation and/or collection, waste from different sources such as industrial, agricultural, household, commercial etc., some of which contained hazardous materials were codisposed in open dumpsites. Thus, exposure of solid waste managers to hazardous substances in the waste stream was apparent, which might cause diseases such as skin infections among others as a result of improper and unsustainable MSWM. The lack of and none usage of personal protective equipment alongside with the ignorance of the waste handlers may results in occupational health hazards associated with MSWM. These people had suffered for ailments from occupational exposure to toxic, hazardous and infectious substances present in the waste stream. Hence, the needs for proper training, awareness raising and enlightenment of the waste handlers on the risks and health hazards of improper protection and haphazard solid waste management. The need for sustainable and integrated waste management is recommended.

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Section: Resultsmentioning

confidence: 99%

Section: Educational Qualificationmentioning

confidence: 99%

Potential occupational health effects of municipal solid waste management in Nigeria, the case of Lagos and Ibadan

Adeyi¹,

Adeyemi²

2019

Ife Journal of Science

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“…High molecular weight (HMW), pyrolytic PAHs, are fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(a) fluoranthene, benzo(k)pyrene, dibenzo(a, h)anthracene, benzo(g, h, i) perylene and indeno(1,2,3-cd) pyrene and have molecular weights ranging from 202.3 to 278.4 g/mol. 56 , 57 Pyrogenic PAHs are formed during the incomplete combustion of coal, oil, gas wood and garbage. The % HMW PAHs was higher than % LMW PAHs at the dumpsites and the control site.…”

Section: Resultsmentioning

confidence: 99%

Heavy Metals and Polycyclic Aromatic Hydrocarbons in Soil from E-waste Dumpsites in Lagos and Ibadan, Nigeria

Adeyi

Oyeleke

2017

Journal of Health and Pollution

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Background.Soil contamination from heavy metals and polycyclic aromatic hydrocarbons (PAHs) released during informal e-waste processing and disposal poses human and ecological health risks in Nigeria.Objectives.This study assesses the levels of heavy metals and PAHs in soils of e-waste dumpsites in Lagos and Ibadan, Nigeria.Methods.Composite soil samples were collected at depths of 0–15 cm, 15–30 cm and 30–45 cm from major e-waste dumpsites in Lagos and Ibadan and analyzed for lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), zinc (Zn), chromium (Cr) and PAHs to evaluate the potential contaminant contribution from e-waste activities. Control samples were collected at the Botanical Garden, University of Ibadan. Samples were analyzed for heavy metals after acid digestion using atomic absorption spectrophotometry, while PAHs were extracted using cold solvent extraction and quantified by gas chromatography-mass spectrometry. Blank determination and recovery studies were carried out for each metal. Contamination and ecological risks were assessed using soil contamination indices such as contamination factor, geo-accumulation and pollution load indices, and potential ecological risk index to categorize contaminant concentrations and associated impacts. Soil physico-chemical characteristics such as pH and total organic matter were also determined.Results.Metals concentrations in the dumpsite soils ranged from 114–2,840 mg/kg and not detectable - 6.50 mg/kg for Pb and Cd, and 42.8–5,390 mg/kg, 27.5–3,420 mg/kg, 11.0–128 mg/kg and 94.0–325 mg/kg for Cu, Zn, Ni and Cr, respectively. Serious metals accumulation was observed at every e-waste dumpsite, as shown by the pollution load index. The potential ecological risk values were between 584 and 10,402 at all of the dumpsites, signifying very high ecological risk. The total PAHs ranged from 1,756–2,224 μg/kg at the 0–15 cm level, 1,664–2,152 μg/kg at 15–30 cm and 278 μg/kg in the top- and sub-soil of the control site.Discussion.The total PAHs in the soil of e-waste dumpsites was significantly higher than in the control soil.Conclusions.The results of this study indicate that indiscriminate dumping and open burning of e-waste are potential sources of PAH and toxic metal emissions, which can pose serious human health and ecological risks.

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“…PAHs are produced mainly by oil derivatives and high temperature processes. Because of the toxic properties of PAHs and their mutagenicity, extraction methods have been developed for quantitation of PAHs in water, soil and air particulates [6] [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons in Soil Samples from Diboll, East Texas (USA)

Onchoke

Ojeda

Janusa

2018

Preprint

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Concentrations of six polycyclic aromatic hydrocarbons (benzanthrone, benz[a]anthracene, chrysene, fluoranthene, pyrene, and triphenylene) of soil samples from Diboll, an East Texas city (USA), were analyzed with gas chromatography-mass spectrometry (GC-MS). Samples were collected from five sites; Old Orchard Park, two heavy traffic intersections (Judd Street and Lumberjack Drive), an industrial site (West Borden Drive), and a truck stop. Acetone and dichloromethane extracts in all samples showed the presence of fluoranthene and pyrene. The sum of fluoranthene and pyrene concentrations in sites followed the order West Borden Drive > Judd Street > Lumberjack Drive > Old Orchard Park > truck stop. Concentrations of fluoranthene and pyrene were in the range 12.3 – 396.5 μg kg-1 (ppb) and 13.6 – 209.8 μg kg-1 (in dry soil), respectively. Benzanthrone, benz[a]anthracene, chrysene, and triphenylene concentrations were < 2 ppb levels. The higher concentrations in soils were associated with sites close to heavy traffic and vehicular emissions.

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Assessment of solid waste and dumpsite leachate and topsoil

Cited by 40 publications

References 19 publications

Potential occupational health effects of municipal solid waste management in Nigeria, the case of Lagos and Ibadan

Potential occupational health effects of municipal solid waste management in Nigeria, the case of Lagos and Ibadan

Heavy Metals and Polycyclic Aromatic Hydrocarbons in Soil from E-waste Dumpsites in Lagos and Ibadan, Nigeria

Polycyclic Aromatic Hydrocarbons in Soil Samples from Diboll, East Texas (USA)

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