The Level of Heavy Metal Contamination in Selected Vegetables and Animal Feed Grasses Grown in Wastewater Irrigated Area, around Asmara, Eritrea

Kfle, Goitom; Asgedom, Ghebray; Goje, Tedros; Abbebe, Felema; Habtom, Lula; Hanes, Hagos

doi:10.1155/2020/1359710

Cited by 21 publications

(7 citation statements)

References 34 publications

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“…In the current study, the concentration of heavy metals did not vary between different fodder types, indicating that the respective plants have similar uptake capabilities (Kfle et al 2020 ). In contrast, heavy metal concentrations varied significantly between the ten lakes studied, as some of them, especially Narasappanhalli and Bellanduru lakes, are located close to or within industrial areas (MSME 2016 ; Shankar 2017 ).…”

Section: Discussionsupporting

confidence: 50%

Urbanisation threats to dairy cattle health: Insights from Greater Bengaluru, India

Alam,

Velayudhan,

Dey

et al. 2023

Trop Anim Health Prod

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Complex urbanisation dynamics, on the one hand, create a high demand for animal products, and on the other hand put enormous pressure on arable land with negative consequences for animal feed production. To explore the impact of accelerated urbanisation on dairy cattle health in urban farming systems, 151 farmers from different parts of the Greater Bengaluru metropolitan area in India were individually interviewed on aspects addressing cattle management and cattle health. In addition, 97 samples of forages from the shores of 10 different lakes, and vegetable leftovers used in cattle feeding were collected for nutritional analysis. Along with the use of cultivated forages, crop residues, and concentrate feed, 47% and 77% of the farmers occasionally or frequently used lake fodder and food leftovers, respectively. Nutritionally, lake fodder corresponded to high-quality pasture vegetation, but 43% of the samples contained toxic heavy metals such as arsenic, cadmium, chromium, and lead above official critical threshold levels. Therefore, lake fodder may affect cows’ health if consumed regularly; however, heavy metal concentrations varied between lakes (P < 0.05), but not between fodder types (P > 0.05). Although 60% of the interviewed farmers believed that their cows were in good health, logit model applications revealed that insufficient drinking water supply and the use of lake fodder negatively impacted cattle health (P < 0.05). While it remains unknown if regular feeding of lake fodder results in heavy metal accumulation in animal products, farmers and farm advisors must address this and other urbanization-related challenges to protect cattle health. Graphical abstract

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Section: Discussionsupporting

confidence: 50%

Urbanisation threats to dairy cattle health: Insights from Greater Bengaluru, India

Alam,

Velayudhan,

Dey

et al. 2023

Trop Anim Health Prod

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“… 35 Similarly, in the soil samples irrigated with wastewater in and around Asmara, Eritrea, heavy metals were detected in the concentration order of Mo < Cd < Co < Cu < Pb < V < Cr ≈ Zn < Mn < Fe < Al indicating that Fe, Mn, and Pb has exceeded FAO/WHO limits. 36 …”

Section: Resultsmentioning

confidence: 99%

Levels and Health Risk Assessments of Heavy Metals in Khat and Its Support Soil in Algesachi, Ilu Ababor, Ethiopia

Damana,

Geletu,

Keru

2024

Environ�Health�Insights

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Background: Khat ( Catha edulis Forsk) is a stimulant plant grown in East Africa and the Arabian Peninsula. Heavy metal pollution has been a global concern due to its acute and chronic health effects and the major route of exposure is the consumption of contaminated foods. In this study, the determination and health risk assessment of heavy metals (Mn, Cu, Zn, Ni, Cr, Cd, and Pb) in khat and its support soil samples was carried out. Materials and Methods: Khat and its support soil were analyzed for the levels of 7 toxic heavy metals by Atomic Absorption Spectrophotometer. Samples were randomly collected from 3 districts of khat farming kebeles and digested using mixture of strong acids. Results: The concentrations (mg/kg) of analytes in soil and khat samples were: Cu (6.78-35.80); Zn (24.30-199.02); Mn (7.59-1855.40); Ni (6.37-64.80); Cr (0.82-169.20); Cd (14.2-38.8), and Pb (ND). Among the analyzed heavy metals in soil, Mn was with the highest concentration, followed by Zn, Cr, Cu, Ni, and Cd while that of Zn was the maximum followed by Cu, Mn, and Cr in khat. The levels of Zn, Cr, and Cd in soil samples from all study sites and detected concentrations of Cr in khat samples exceeded the recommended FAO/WHO levels. Conclusion: The hazard index (HI) of metals in khat from study areas was less than 1 indicating a less likelihood of non-carcinogenic toxicological health effects. However, the presence of these toxic chemicals in soil and khat indicates product contamination and needs extensive further investigation involving other heavy metals.

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“…The peroxide fusion technique was utilized for the digestion of soil specimens, following the procedure outlined by Kfle et al (2020). In this investigation, 0.20 grams of each specimen, as well as certified reference materials/standards, were meticulously weighed (utilizing a catch weight method) and placed into a zirconium crucible.…”

Section: Soil Digestionmentioning

confidence: 99%

Pollution indices as useful tools for comparative potential health risks of nickel in water-soil-fodder-animals food chain in relation to spatial and temporal fluctuations

Khan,

Raza,

Ahmad

et al. 2024

Preprint

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Contamination of fodder species with elevated levels of metallic compounds holds significant epidemiological relevance, as it serves as the primary gateway for the introduction of these elements into the food chain. This investigation was directed to ascertain the ecological and health hazard of nickel contamination through various indices in food chain resulting from the dietary consumption of commonly ingested fodder crops cultivated on contaminated sites in the proximity of Sahiwal (Sargodha) and Soone Valley (Khushab), Punjab, Pakistan. Samples of water, soil, forages, ruminant’s blood, feces, and milk were collected from two sites; Soone Valley (Site_1) and Sahiwal (Site_2) in summer (Season_1) and winter (Season_2) during 2022-23, and were analyzed for nickel concentrations employing atomic absorption spectrophotometer. The mean concentrations of nickel were varied from 0.0125–0.0579 mg L− 1, 0.386–2.123 mg kg− 1, 0.00853–0.5784 mg kg− 1, 0.1085–0.5918 mg L− 1, 0.04664–0.2122 mg kg− 1, and 0.00820–0.2147 mg L− 1 in water, soil, forages, blood, feces, and milk, correspondingly. Highly significantly a negative correlation was observed among the soil vs fodder of Site_1 and Site_2 during both seasons. In animals, the highest nickel concentration was detected in blood of buffaloes at Site_1, while lowest in milk of cows at Site_2. Nickel concentrations were detected under standard permissible limits described by FAO/WHO. Except to BCF and EF, all the computed indices (PLI, Igeo, Eri, DIM, EDI, HRI, THQ, EDD, ECR, and ILTCR) were < 1, indicating low concentrations of nickel in soil and fodder, thus ensuring the safety of local ruminants upon ingestion during both seasons at both sites. Henceforth, strongly advocate the regular surveillance of heavy metal concentrations in the pasture grass surrounding contaminated locations is necessary. Furthermore, we suggest implementing precautionary measures to mitigate unintentional exposures of both livestock and, consequently, human beings to the deleterious effects of metal toxicity.

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The Level of Heavy Metal Contamination in Selected Vegetables and Animal Feed Grasses Grown in Wastewater Irrigated Area, around Asmara, Eritrea

Cited by 21 publications

References 34 publications

Urbanisation threats to dairy cattle health: Insights from Greater Bengaluru, India

Urbanisation threats to dairy cattle health: Insights from Greater Bengaluru, India

Levels and Health Risk Assessments of Heavy Metals in Khat and Its Support Soil in Algesachi, Ilu Ababor, Ethiopia

Pollution indices as useful tools for comparative potential health risks of nickel in water-soil-fodder-animals food chain in relation to spatial and temporal fluctuations

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