Genotypic variations in the accumulation of Cd, Cu, Pb and Zn exhibited by six commonly grown vegetables

Alexander, Priscilla; Alloway, B. J.; Dourado, A. M.

doi:10.1016/j.envpol.2006.03.001

Cited by 336 publications

(206 citation statements)

References 10 publications

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“…Intake of too much Zn in the diet is less detrimental than its deficiency. However, it was also reported that high concentration of Zn in vegetables can cause vomiting, renal damage and cramps [40]. The concentration of Zn in vegetables determined by Zakir et al [41] is much higher than the present value while the concentration of Zn in the same vegetables recorded by Bo et al [42] is in good agreement to the present study.…”

Section: Metals Accumulation In Vegetablessupporting

confidence: 81%

Metals Uptake by Wastewater Irrigated Vegetables and their Daily Dietary Intake in Peshawar, Pakistan / Pobieranie Metali Przez Warzywa Nawadniane Ściekami I Ich Dzienne Stężenie W Diecie Ludności Peszawaru, Pakistan

Khan

Liu

Shah

et al. 2015

Ecological Chemistry and Engineering S

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Abstract:Vegetables are important source of nutrients for human body. Wastewater irrigation may lead to contamination of these vegetables and cause possible health risk. In the present study impact of waste water irrigation on metals uptake (Fe, Mn, Ni, Co, Zn, Cd, Cr and Pb) by five commonly consumed vegetables (radish, cabbage, lettuce, cauliflower and spinach) grown in the suburbs of Peshawar were investigated using AAS (Atomic Absorption spectrophotometer). The uptake and accumulation of metals for vegetables irrigated with wastewater were significantly (p < 0.05) higher than tube well irrigated vegetables and permissible limits of WHO/FAO. Among the edible parts of vegetables maximum accumulation of Mn, Pb and Cd occurred in radish followed by Ni and Fe in spinach while Cr and Zn were high in cauliflower and cabbage. The estimated daily intake of metals (DIM) revealed that at present the consumption of studied vegetables were under the tolerable limits of (US-EPA, IRIS), however intake of metals in waste water irrigated vegetables were significantly high and can cause health hazards in the long run.

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Section: Metals Accumulation In Vegetablessupporting

confidence: 81%

Metals Uptake by Wastewater Irrigated Vegetables and their Daily Dietary Intake in Peshawar, Pakistan / Pobieranie Metali Przez Warzywa Nawadniane Ściekami I Ich Dzienne Stężenie W Diecie Ludności Peszawaru, Pakistan

Khan

Liu

Shah

et al. 2015

Ecological Chemistry and Engineering S

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“…This is probably due to less deposition of dusty air and less internal translocation of heavy metals (Marschner 2011). Generally plants may have different potential for heavy metal uptake and sensitivity to various heavy metals (Alexander et al 2006), nevertheless, vegetable crops are capable of mobilizing the heavy metals in the soil, more potently than any other crop. Despite the root characteristics were not measured in the present study, root growth and root length are adversely affected by heavy metals (Lux et al 2010), indicating tissues specific responses to heavy metal contaminations.…”

Section: Discussionmentioning

confidence: 99%

Elemental Profile of Heavy Metals in Garden cress, Coriander, Lettuce and Spinach, Commonly Cultivated in Kahrizak, South of Tehran- Iran

et al. 2018

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Heavy metal accumulation in vegetable tissues often poses a great risk for human health. In the present study, accumulation of heavy metal in green leafy vegetable crops of coriander, garden cress, lettuce and spinach were evaluated under waste water irrigation in fields located in Kahrizak, on the southern edge of the metropolitan city of Tehran, Iran. Atomic absorption spectrophotometery was used for determination of heavy metal concentrations in leaf tissue. The results showed that heavy metal concentrations in soil and irrigation water were significantly high than allowable levels. Analysis of plant leaf tissue showed that spinach and garden cress accumulated higher concentrations of heavy metals compared to coriander and lettuce plants. Central leaves of lettuce showed the lowest heavy metal concentration compared to outer leaves or leaves of other vegetable crops, and can be the safer product for fresh consumption. The results indicate that the vegetables produced in the region are not suitable for fresh consumption and the agricultural activities should change towards ornamental or industrial crops production.

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“…Oven-dried root and shoot samples were homogenized using a Retsch grinder (Type: 2 mm, Retsch Company, Germany) and then digested in HNO 3 (Alexander et al 2006). Sub-samples of plant tissue (0.5 g) were weighed into 200 mL block digestion tubes, concentrated nitric acid (10 mL) added and allowed to stand overnight.…”

Section: Analysis Of Pb Concentrations In Plant Tissuesmentioning

confidence: 99%

Antioxidant enzymes and proteins of wetland plants: Their relation to Pb tolerance and accumulation

Yang

2014

Environ Sci Pollut Res

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Constructed wetlands used to clean up toxic metals such as lead (Pb) from contaminated wastewater are considered as an effective and low-cost technology. The effect of Pb on the biomass, tolerance, soluble protein, and antioxidant enzymes in 18 candidate wetland plant species grown in soils without (control) and spiked with 900 and 1800 mg Pb kgwas studied in a pot trial. Our pot experiment showed that the biomass, tolerance, and leaf protein contents decreased with increasing concentrations of Pb in soil. There were significant differences between the plants in their Pb tolerance indices (29-82 % in the 900 mg Pb kg −1 amended soil) and also Pb uptake (13-749 mg kg −1 in shoots and 1112-4891 mg kg −1 in roots, in the same treatments). Activities of superoxide dismutase (SOD) and peroxidase (POD) in leaves of most of the plants increased with increasing level of soil Pb concentration. Conversely, catalase (CAT) activity in leaves declined when plants were subjected to Pb stress. Lead accumulation by the 18 wetland plant species screened was strongly dependent on the species and Pb concentrations in the soil. However, Pb translocation from root to shoot was generally low in all species. Increases in SOD and POD activities suggest that the antioxidant system may play an important role in alleviating Pb toxicity in wetland plants. The data obtained should help in future species selection for the use in designing wetlands in Pb-contaminated environments.

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Genotypic variations in the accumulation of Cd, Cu, Pb and Zn exhibited by six commonly grown vegetables

Cited by 336 publications

References 10 publications

Metals Uptake by Wastewater Irrigated Vegetables and their Daily Dietary Intake in Peshawar, Pakistan / Pobieranie Metali Przez Warzywa Nawadniane Ściekami I Ich Dzienne Stężenie W Diecie Ludności Peszawaru, Pakistan

Metals Uptake by Wastewater Irrigated Vegetables and their Daily Dietary Intake in Peshawar, Pakistan / Pobieranie Metali Przez Warzywa Nawadniane Ściekami I Ich Dzienne Stężenie W Diecie Ludności Peszawaru, Pakistan

Elemental Profile of Heavy Metals in Garden cress, Coriander, Lettuce and Spinach, Commonly Cultivated in Kahrizak, South of Tehran- Iran

Antioxidant enzymes and proteins of wetland plants: Their relation to Pb tolerance and accumulation

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