Lead and cadmium contents in cereals and pulses in north-eastern China

Zhang, Zuo-Wen; Watanabe, Takao; Shimbo, Shinichiro; Higashikawa, Kae; Ikeda, Masayuki

doi:10.1016/s0048-9697(98)00252-6

Cited by 75 publications

(42 citation statements)

References 30 publications

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“…Plants, including rice (Oryza sativa L.) and vegetables, can accumulate lead through several pathways, including uptake from lead contaminated soil (Verma and Dubey, 2003;Yoon et al, 2006;Liu et al, 2013). It has been reported that rice and vegetables growing in lead contaminated mining areas can pose a potential health risk to the local population through the food chain (Zhang et al, 1998;Capdevila et al, 2003;Yang et al, 2004;Zhuang et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Even for Europeans, grains and grain products contribute 26.9 % of the total cadmium intake (EFSA European Food Safety Authority 2012). In addition to cadmium, in mining regions, lead accumulation in rice plants has been also shown to pose a potential health risk to the local population (Zhang et al, 1998;Capdevila et al, 2003;Yang et al, 2004;Zhuang et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

et al. 2014

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Background and Aims The accumulation of cadmium and lead in rice (Oryza sativa L.) grains is a potential threat to human health. In this study, the effect of selenium fertilization on the uptake and translocation of cadmium and lead in rice plants was investigated. Methods Rice plants were cultivated using cadmium and lead contaminated soils with selenium addition at three concentrations (0, 0.5 and 1 mg kg −1 ). At maturity, plants were harvested, and element concentrations in rice tissues were analyzed by using ICP-MS.Results Selenium application significantly increased seleniumaccumulationinricegrain,andmarkedlydecreased cadmium and lead concentrations in rice tissues. In brown rice grains, selenium application reduced cadmium concentrations by 44.4%, but had nosignificant effect onlead accumulation. Selenium application significantly decreased metal mobility in soils, at 0.5 mg kg −1 treatment, the translocation factor of cadmium and lead from soil to ironplaquedecreased by71and 33% respectively. Conclusions The mechanism of selenium mitigating of heavy metal accumulation in rice could be decreasing metal bioavailability in soil. Selenium fertilization could be an effective and feasible method to enrich selenium and reduce cadmium levels in brown rice.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

et al. 2014

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“…The level of heavy metals in foodstuffs have been reported around the world; from East Asia (Wu Leung and Butrum, 1972), Sweden (Jorhem and Sundstroem, 1993), USA , Egypt (Hussein and Bruggeman, 1997), China (Zhang et al 1998), Nigeria (Onianwa et al, 1999), Italy (Conti et al, 2000), and Turkey (Saracoglu et al, 2004). In many developing countries such data are not readily available.…”

Section: Introductionmentioning

confidence: 99%

Heavy metals (Cd, Pb) and trace elements (Cu, Zn) contents in some foodstuffs from the Egyptian market

Salama

Radwan

2005

Emir. J. Food Agric

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Determination of heavy metals; cadmium (Cd) and lead (Pb) as well as trace elements; copper (Cu) and zinc (Zn) contents in legumes, cereals, cereal products and fried potatoes purchased from the Egyptian market were carried out using atomic absorption spectrometry. The heavy metal amounts detected in legumes ranged from 0.010 to 0.178 mg. ), salted biscuits (1.386 mg.kg -1 ) and pizza crust (13.70 mg.kg -1 ), respectively. Fried potatoes content of the studied metals were found to be ranged from 0.054 to 0.10 of Cd, 0.065 to 0.159 of Pb, 1.626 to 1.992 of Cu and 3.837 to 6.844 mg.kg -1 of Zn. Overall, the present study showed that the levels of Cu and Zn are generally below the permissible levels. However, the levels of Pb in broad beans, common bean, lupine, fenugreek, rice, wheat, spaghetti and pasta were found to be above the permissible levels. On the other hand, Cd levels found in most samples were above the acceptable levels as established by the regulatory organizations. The levels compare well with those reported for similar foodstuffs from some other parts of the world.

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“…The uptake and accumulation of Pb by wetland plants are strongly governed by substrate Pb concentrations and the plant species (Zhang et al 1998;Deng et al 2004). There is evidence that some emergent wetland plants such as cattail, common reed (Ye et al 2001), yellow flag (Iris pseudacorus L.) (Han et al 2008), and the aquatic macrophyte Najas indica (Willd.)…”

Section: Introductionmentioning

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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Lead and cadmium contents in cereals and pulses in north-eastern China

Cited by 75 publications

References 30 publications

Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

Effect of selenium fertilization on the accumulation of cadmium and lead in rice plants

Heavy metals (Cd, Pb) and trace elements (Cu, Zn) contents in some foodstuffs from the Egyptian market

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

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