Accumulation of Heavy Metals from Battery Waste in Topsoil, Surface Water, and Garden Grown Maize at Omilende Area, Olodo, Nigeria

Afolayan, Adedotun Onoyinka

doi:10.1002/gch2.201700090

Cited by 26 publications

(16 citation statements)

References 38 publications

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“…Heavy metal contamination is a global issue [93][94][95][96][97] and of high significance in Nigeria. Evidence from research within the context of Nigeria suggests a growing concern for protecting different varieties of food from the toxic effects of heavy metals [30,69]. e present outcome from various laboratory investigations, such as those of Ogunkunle et al [56] and Obiora et al [29], show that some of these heavy metal contaminations, particularly those affecting dairies, most of the aquatic habitat, and the beverage industry, are within safety level, according to international standards.…”

Section: Arsenic (As)mentioning

confidence: 99%

A Review of the Health Implications of Heavy Metals in Food Chain in Nigeria

Nkwunonwo

Odika

Onyia

2020

The Scientific World Journal

120

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Heavy metals such as Zn, Pb, Fe, and Cu are abundant in the environment and contribute largely to the sustainability and equilibrium of ecosystem processes. However, because of their bioaccumulation, nondegradability, and the excessive amounts in which they exist, these metals contaminate the food chain and subsequently become a source of toxicity to human beings and the entire ecological function. This is a major issue of concern within the study of environmental science and geochemistry. Although there is a global significance to the issue, it seems more immediate for the developing countries (DCs) such as Nigeria, where the pressure of the teeming population escalates the exigency for human sustainability, food security, and total eradication of hunger. Within the Nigerian context, many studies have examined this all-important issue, but most of these studies are fragmented and limited within the purview of mostly individual states and localities within the country. Taken on a wider geographical scale, the discussions and perspectives of these studies on heavy metal contamination of the food chain offer insufficient insight and expose merely a snapshot of the actual situation. As a result of this, a country-wide knowledge base of the implications of heavy metals on the food chain is lacking. Thus, the present study synthesises existing literature and their findings to create a knowledge base on the vulnerability of the food chain in Nigeria. Aquatic foods, fruits, vegetables, and major staple food such as tubers are the major host of carcinogenic and mutagenic components of heavy metals in Nigeria. This study motivates the Standard Organisation of Nigeria (SON), along with other food and agricultural agencies, to intensify their efforts in monitoring and analysing food components, and we advise consumers to eat with certain degrees of caveat.

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Section: Arsenic (As)mentioning

confidence: 99%

A Review of the Health Implications of Heavy Metals in Food Chain in Nigeria

Nkwunonwo

Odika

Onyia

2020

The Scientific World Journal

120

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“…TF reflects the concentration of metal in maize relative to that in the corresponding soil. A TF value higher than 1 indicates a high level of metal accumulation in the plant [39]. In this study, the TF values were far less than 1 for all six heavy metals, indicating low levels of metal accumulation in maize grains.…”

Section: Heavy Metal Levels In Maize Associated Soil and Irrigationmentioning

confidence: 47%

“…Former studies found that compared to other parts of maize, the grains have lower TF values [39,48], indicating low heavy metal uptake and accumulation in maize grains. The TF values of the six metals in this study followed the following sequence: Cd > Zn ≈ As > Cr > Cu > Pb.…”

Section: Heavy Metal Levels In Plant-soil-irrigation Systemmentioning

confidence: 99%

Heavy metal levels, potential health risk, and uncertainty analysis in a plant–soil–irrigation system of the Yellow River irrigation area of northern Ningxia (China)

Liu

Zhang

Feng

et al. 2019

Preprint

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Background Industrial development results in elevated levels of heavy metals in the local environment, including the air, soil, and water. These heavy metals can contaminate crops in the surrounding area, which may pose severe health risks to local inhabitants. The aims of this study were to determine the levels of heavy metals in plant–soil–irrigation system and the associated human health risk with deterministic and probabilistic approaches. Methods In this study, samples of soil, irrigation water, and maize crops were collected from the Yellow River irrigation area in northern Ningxia, China. Inductively coupled plasma-atomic emission spectrometry(ICP-AES)was applied to determine the heavy metal contents in maize grains, soil samples, and irrigation water. Potential health risks were assessed by deterministic and probabilistic estimation. Results The average concentrations of chromium and lead in maize exceeded the maximum allowable concentrations in food. The average concentrations of metals in the associated soil and irrigation water were both below the safe limits allowed in China. Deterministic estimation indicated a hazard index of 0.0986 for all inhabitants, implying no significant non-carcinogenic risk. The lifetime cancer risk value was 3.261×10−5, lower than the maximum acceptable level of 1×10−4 suggested by USEPA, while above the negligible level of 1×10−6 (USEPA) and 1×10−5 (WHO), with females facing a greater health risk than males. Probabilistic estimation indicated that approximately 0.62% of inhabitants are exposed to non-carcinogenic risk due to maize ingestion, while carcinogenic risk exceeds the maximum acceptable level (1×10−4) for 8.23% and negligible level (1×10−5) for 64.26% of inhabitants. Sensitivity analysis indicated that the concentration of arsenic in maize, the daily intake of maize, and exposure frequency of maize are the primary contributing factors in both non-carcinogenic and carcinogenic risks. Therefore, the content of arsenic in maize is of concern in the study region. Conclusions Based on deterministic and probabilistic risk estimation, there are no obvious non-carcinogenic health risks to inhabitants, while carcinogenic risk from As exposure is higher than the acceptable risk level. Females are at greater risk than males, and inhabitants under 20 years of age have the highest risk among age groups.

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“…Similarly, in Ibadan (Oyo State), Pb and Cd concentrations detected in topsoil of battery waste dumpsite exceeded the environmental quality standards set by National Environmental Standards and Regulations Enforcement Agency (NESREA) for soils in Nigeria [28]. Street dumpsite soil samples in Osogbo, Osun state was also examined by [29] and the highest Lead concentration detected was 72.7 mg/kg.…”

Section: Heavy Metals Accumulation In Soilmentioning

confidence: 99%

Occurrence and Impact of Heavy Metals on Some Water, Land, Flora and Fauna Resources across Southwestern Nigeria

Akinnifesi¹,

Adesina²,

Ogunwole³

et al. 2021

Heavy Metals - Their Environmental Impacts and Mitigation

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Rapid urbanization and industrialization in communities of Nigeria contribute significantly to environmental pollution. Amongst the diversity of these environmental contaminants are heavy metals, a rarely biodegradable and toxic class of metals. Heavy metals are known to be harmful to plants, aquatic species, and subsequently endanger human health through bioaccumulation or biomagnification. Even at low concentrations, heavy metals may affect key soil microbial processes; inhibit plant metabolism and growth. Toxic metals in groundwater affect water quality and potability, and their presence in aquatic systems also facilitate the production of reactive oxygen species that can damage physiological processes in fishes and other aquatic organisms. This chapter highlights the occurrence and impact of heavy metals in different environmental matrices and organisms sampled across some Southwestern states in Nigeria. Various studies including those of the authors found varying levels of heavy metals, especially in concentrations that can imperil ecosystem functions. While results of studies included in this chapter may suggest heavy metal introduction through anthropogenic-urbanization means, the lack of proper implementation of environmental monitoring laws in Nigeria also clearly exist. As such, the mitigation of heavy metals amongst other pollutants demands better home-grown decentralized technologies.

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Accumulation of Heavy Metals from Battery Waste in Topsoil, Surface Water, and Garden Grown Maize at Omilende Area, Olodo, Nigeria

Cited by 26 publications

References 38 publications

A Review of the Health Implications of Heavy Metals in Food Chain in Nigeria

A Review of the Health Implications of Heavy Metals in Food Chain in Nigeria

Heavy metal levels, potential health risk, and uncertainty analysis in a plant–soil–irrigation system of the Yellow River irrigation area of northern Ningxia (China)

Occurrence and Impact of Heavy Metals on Some Water, Land, Flora and Fauna Resources across Southwestern Nigeria

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