Risk analysis of heavy metal contamination in soil, vegetables and fish around Challawa area in Kano State, Nigeria

Edogbo, Blessing; Okolocha, Emmanuel C.; Maikai, Betty; Aluwong, Tagang; Uchendu, Chidiebere

doi:10.1016/j.sciaf.2020.e00281

Cited by 52 publications

(69 citation statements)

References 29 publications

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“…Additionally, heavy metals can be found both in animal-derived food or plant-based food. However, sometimes it may be higher in the latter one as they can be easily contaminated with heavy metals such as arsenic, cadmium and lead, from the water, air, and soil as they grow [ 77 , 78 , 79 , 80 ]. These heavy metals have been found to inactivate catechol-O-methyltransferase (COMT), which increases serum and urinary epinephrine, norepinephrine, and dopamine [ 81 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

et al. 2020

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The beneficial effects of a vegetarian diet on blood pressure (BP) control have been reported in previous systematic reviews; however, so far, their relative effectiveness is not well established. Here, we performed a systematic review together with trial sequential analysis to determine the effect of a vegetarian diet on the reduction of blood pressure. We searched the randomized controlled trial (RCT) through Medline, PubMed and Cochrane Central Register. Fifteen eligible RCTs with 856 subjects were entered into the analysis. The pooled results demonstrated that vegetarian diet consumption significantly lowered the systolic blood pressure (weighted mean difference (WMD), −2.66 mmHg (95% confidence interval (CI) = −3.76, −1.55, p < 0.001) and diastolic BP was WMD, −1.69 95% CI = −2.97, −0.41, p < 0.001) as compared to an omnivorous diet. In subgroup analysis, a vegan diet demonstrated a greater reduction in systolic BP (WMD, −3.12 mmHg; 95% CI = −4.54, −1.70, p < 0.001) as compared with a lacto-ovo-vegetarian diet (WMD, −1.75 mmHg, 95% CI −5.38, 1.88, p = 0.05). The vegan diet has showed a similar trend in terms of diastolic blood pressure reduction (WMD, −1.92 mmHg (95% CI = −3.18, −0.66, p < 0.001) but those with a lacto-ovo-vegetarian diet showed no changes in diastolic BP reduction (WMD, 0.00, 95% CI = 0.00, 0.00), p = 0.432). In conclusion, vegetarian diets are associated with significant reductions in BP compared with omnivorous diets, suggesting that they may play a key role in the primary prevention and overall management of hypertension.

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Section: Discussionmentioning

confidence: 99%

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

et al. 2020

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“…BW is the average body weight (18.3 kg for children and 64.5 kg for adults); ATn is the average time of exposure to non-carcinogenic heavy metals (ED × 365 days/year).System database[42]. The carcinogenic risk factor for inorganic As is 1.5 mg/kg/day; for Cd and Pb are of 0.6 mg/kg/day and 0.0085 mg/kg/day respectively[44]. C, IR, EF, ED and BW were previously described.…”

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confidence: 99%

Heavy Metals in Native Potato and Health Risk Assessment in Highland Andean Zones of Junín, Peru

Orellana¹,

Bastos²,

Cuadrado³

et al. 2020

JEP

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Heavy metals are transferred from the abiotic environment to living organisms, accumulate in food, contaminate the food chain, and are an important route of human exposure involving a potential health risk. In this study, the concentrations of heavy metals (Cd, Fe, Pb, Zn and As) in agricultural soils and tubers of Solanum tuberosum spp. andigena (native potato) were evaluated. Also, an assessment of the health risk associated with the daily intake by the local population was performed in the four districts of the department of Junín, between altitudes of 3800 m to 4200 m. The heavy metals concentrations in soils with native potato cultivation followed the following decreasing order of Fe > Zn > Pb > As > Cd, with values below national standards. The heavy metals content in native potatoes was below the limits recommended by international standards with the exception of Pb. The bioconcentration factor (BCF) for the two native potato varieties in decreasing order was Zn > Cd > Pb > As > Fe, all less than 0.5. The estimated daily intake of metals (EDIM) in adults and children through the consumption of native potatoes was higher for Fe and Zn. The threshold carcinogenic risk values (TCR) for As exceeded the safety limits 1 × 10 −4. It is concluded that the residents in the four high Andean localities would be exposed to carcinogenic adverse health effects associated with the intake of native potatoes. It is important to monitor the concentration of As and other heavy metals in the Andean soils and crops in order to implement a soil and crop management program to ensure food quality.

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“…Além do solo e ar, a contaminação por metais pesados também pode ser mediada por meio da água de irrigação contaminada. Edogbo et al (2020) (Tabela 1) identificaram presença de metais pesados (Cd, Cr, Pb, Zn) nos diferentes tipos de vegetais comestíveis de fazendas irrigadas com água residual da área de Challawa, Kano (Nigéria). A maior concentração de Cd ocorreu na batata irlandesa.…”

Section: Autoresunclassified

Agricultura em Áreas Industriais e Contaminação por Metais Pesados: Estratégias para redução deste Impacto Ambiental

Sousa

Santos

et al. 2021

Rev. Bras. Geog. Fis.

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Concentrações elevadas de metais pesados podem ocorrer em áreas próximas de complexos industriais e em solos ao redor das áreas de mineração, o que pode se estender para alimentos agrícolas, causando efeitos adversos na saúde da população, danos ecológicos, além de implicar em bioacumulação. Devido à facilidade de dispersão dos metais pesados no meio ambiente, especialmente na agricultura que adentra à cadeia alimentar, o objetivo desse estudo foi revisar dados sobre esta contaminação em vegetais cultivados em áreas industriais e identificar possíveis estratégias para minimizar o impacto ambiental. Vários estudos apontam que solos e vegetais cultivados próximos de áreas industriais apresentam elevadas concentrações de metais pesados, sendo ainda maior proporcionalmente à proximidade da área poluente. Dentre os tipos de vegetais, os folhosos foram os que apresentaram maior teor de contaminação de metais do que os vegetais frutados ou de raiz, o que aponta que, além do solo, a contaminação atmosférica influencia no vegetal exposto. Além disto, existe correlação entre espécie vegetal e biodisponibilidade/absorção de determinados metais em detrimento a outros. É notório que o cultivo de produtos agrícolas em áreas industriais e circunvizinhas é uma prática que põe em risco potencial de toxicidade a população que utiliza estes produtos como alimento. Algumas estratégias podem ser adotadas com intuito de minimizar a contaminação, dentre estas, técnicas naturais de manejo de cultivo de vegetais, seleção de tipos de vegetais com menor possibilidade de toxicidade para áreas específicas, técnicas para aumentar fatores de proteção do vegetal e descontaminação do solo, controle e fiscalização efetivos nos efluentes industriais. Agriculture in Industrial Areasand Heavy Metal Contamination: Strategies to reduce this Environmental Impact A B S T R A C TContamination by heavy metals can occur in locations close to industrial complexes and in soils around mining areas, which can extend to agricultural foods, causing adverse effects on the population's health, ecological damage, in addition to resulting in bioaccumulation. Heavy metals are rapidly dispersed in the environment, especially in agriculture that enters the food chain. Thus, the objective of this study was to review this contamination in vegetables grown in industrial areas and to identify possible strategies to minimize the socio-environmental impact. Many studies show that soils and vegetables cultivated close to industrial areas have high concentrations of heavy metals, being even greater in proportion to the proximity of the polluting area. Among the types of vegetables, the leafy ones were those that had a higher content of metal contamination than fruity or root vegetables, which indicates that, in addition to the soil, atmospheric contamination influences the exposed plant. In addition, there is a correlation between plant species and bioavailability of certain specific metals. The cultivation of agricultural products in industrial and surrounding areas is a practice that poses a potential risk of toxicity to the population that consumes these products as food. Some strategies can be adopted in order to minimize contamination, among them, natural techniques for handling vegetable cultivation, selection of types of vegetables with less possibility of toxicity for specific areas, techniques to increase plant protection factors and soil decontamination, effective control and inspection in industrial effluentsKeywords: heavy metals; soil contamination; industrial areas, agriculture, agroecology.

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Risk analysis of heavy metal contamination in soil, vegetables and fish around Challawa area in Kano State, Nigeria

Cited by 52 publications

References 29 publications

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

Heavy Metals in Native Potato and Health Risk Assessment in Highland Andean Zones of Junín, Peru

Agricultura em Áreas Industriais e Contaminação por Metais Pesados: Estratégias para redução deste Impacto Ambiental

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Risk analysis of heavy metal contamination in soil, vegetables and fish around Challawa area in Kano State, Nigeria

Cited by 52 publications

References 29 publications

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

Effects of Vegetarian Diets on Blood Pressure Lowering: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

Heavy Metals in Native Potato and Health Risk Assessment in Highland Andean Zones of Jun&#237;n, Peru

Agricultura em Áreas Industriais e Contaminação por Metais Pesados: Estratégias para redução deste Impacto Ambiental

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Heavy Metals in Native Potato and Health Risk Assessment in Highland Andean Zones of Junín, Peru