Investigation of the extent of contamination of heavy metals in agricultural soil using statistical analyses and contamination indices

Esmaeilzadeh, Marjan; Jaafari, Jalil; Mohammadi, Ali Akbar; Panahandeh, Maryam; Javid, Amir Hossein; Javan, Safoura

doi:10.1080/10807039.2018.1460798

Cited by 73 publications

(44 citation statements)

References 34 publications

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“…The % OM obtained in soil samples from this study is found to be very comparable with the data (1.18-3.29%) reported by Sharma et al, [44] data reported by, however, quite lower than the minimum content of 3.4% as mentioned by Plunkett [62]. In contrary to data we have obtained, Balkhair [35] have reported a 44.9% OM content in soil samples from western region of Saudi Arabia. The relatively lower % OM obtained in this study could be attributed to the excessive cultivation and soil erosion in the area.…”

Section: Physicochemical Properties Of Soil Samplessupporting

confidence: 87%

“…All over the world, especially in developing nations, there is a growing public concern over the potential accumulation of heavy metals in soil, water and plants owing to rapid industrial development [33][34][35][36]. For instance, Kamani and co-workers [37] have reported the contamination levels of street dust with heavy metals and associated health risk to the population in Tehran, Iran.…”

Section: Introductionmentioning

confidence: 99%

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Levels of heavy metals in soil and vegetables and associated health risks in Mojo area, Ethiopia

2020

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Health implications to the population due to the consumption of contaminated vegetables has been a great concern all over the world. In this study, the levels of heavy metals (Cr, Cd, Zn, Fe, Pb, As, Mn, Cu, Hg, Ni and Co) in soil and commonly consumed vegetables from Mojo area in central Ethiopia have been determined using Inductively Coupled Plasma Optical Emission Spectrophotometer (ICP-OES) and possible health risks due to the consumptions of the vegetables have also been estimated. The levels of As, Pb, Cd, Zn, Cu, Hg and Co were exceeded the reference level in agricultural soil. Likewise, As, Pb, Cd, Cr and Hg levels exceeded the recommended values in vegetable samples with concentrations rang

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Section: Physicochemical Properties Of Soil Samplessupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Levels of heavy metals in soil and vegetables and associated health risks in Mojo area, Ethiopia

2020

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“…e findings of these studies are consistent with the general view that heavy metals are nonbiodegradable, and metallic elements with relatively high density are toxic or poisonous even at low concentrations. ey accumulate in the environment and over time contaminate the food chain, which is a major source of environmental and human health risk [1,24,32,33]. Despite the obvious significance of these studies, a country-wide knowledge base of the implication of heavy metals on the food chain within different regional and socioeconomic settings of Nigeria is lacking.…”

Section: Introductionmentioning

confidence: 99%

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

Nkwunonwo

Odika

Onyia

2020

The Scientific World Journal

115

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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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“…Wheat, barley, corn, etc. are the major crops of Northeastern Iran (Esmaeilzadeh et al, 2018). Khorasan Steel Complex is the biggest incorporated steelmaking plant in Northeastern Iran.…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution and potential ecological risk assessment of heavy metals in agricultural soils of Northeastern Iran

Keshavarzi

Kumar

2019

Geology, Ecology, and Landscapes

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Illustrating the spatial distribution and potential sources of soil properties, and heavy metals, viz., Fe, Zn, Mn, and Cu, are the vital prerequisites for decreasing their pollution. The 68 composite agricultural soil samples in triplicates were collected by employing grid method to evaluate the concentration of pH, sand, silt, clay, organic carbon, P, K, and heavy metals. Multivariate techniques (Pearson's correlation, heatmap, principal component analysis, and nonmetric multidimensional scaling), geostatistcal techniques, and contamination indices were employed. The contents of Fe, Zn, Mn, and Cu were lower than the limits for Iran EPA guidelines and Earth's crust. The results of contamination factor and potential ecological risk index (RI) showed that agricultural soils have less contamination and low ecological risks. The enrichment factor (EF), geoaccumulation index (Igeo) and modified ecological risk index (MRI) indicated that 99%, 86.7% and 52.4% agricultural soil samples showed very high enrichment and ecological risks of heavy metals. Both anthropogenic activities and natural factors were responsible for heavy metal contents. The results of geostatistcal analysis revealed that Zn is accumulated more in Central regions, whereas Cu and Mn accumulated more in South and Northeastern regions of the studied area for EF, Igeo, and modified potential ecological RI. ARTICLE HISTORY

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Investigation of the extent of contamination of heavy metals in agricultural soil using statistical analyses and contamination indices

Cited by 73 publications

References 34 publications

Levels of heavy metals in soil and vegetables and associated health risks in Mojo area, Ethiopia

Levels of heavy metals in soil and vegetables and associated health risks in Mojo area, Ethiopia

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

Spatial distribution and potential ecological risk assessment of heavy metals in agricultural soils of Northeastern Iran

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