Heavy metal accumulation in different varieties of wheat (Triticum aestivum L.) grown in soil amended with domestic sewage sludge

Jamali, Mohammad Khan; Kazi, Tasneem Gul; Arain, Mohammad Balal; Afridi, Hassan Imran; Jalbani, Nusrat; Kandhro, Ghulam Abbas; Shah, Abdul Qadir; Baig, Jameel Ahmed

doi:10.1016/j.jhazmat.2008.09.056

Cited by 212 publications

(111 citation statements)

References 40 publications

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“…They found that the transfer of heavy metals were weakly restricted from amended-soil Singh and Agrawal (2010) reported that sludge amendment rates higher than 45 Mg ha À1 can lead to risks that the food chain will become contaminated, and they also found Ni and Cd concentrations in rice grains grown on sludge-amended soil were higher than the safe limits for agricultural products. High concentrations of all of the heavy metals present in sludge have been found in wheat grains, and significant correlations were found between the amounts of exchangeable heavy metal in the soil and the grain (Jamali et al, 2009). Similar conclusions to those drawn in the studies mentioned above, that heavy metal concentrations in plant tissues rose as the sludge application rate increases were observed by Bai et al (2010) and Sharma et al (2010), and they found that the heavy metal concentrations in plant tissues did not generally exceed local or national limits for edible agricultural products.…”

Section: Influence Of Sludge Amendment On the Uptake Of Heavy Metals mentioning

confidence: 99%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

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a b s t r a c tRecycling sludge as a soil amendment has both positive and negative effects because of its enrichment in both nutrients and contaminants. So far, the negative effect has to be extensively investigated that the severities of different types of contaminants also remain unclear. The environmental behavior and risk of organic contaminant and pharmaceuticals, heavy metal and salt as well as pathogenic microorganisms brought by sludge amendment are summarized and discussed here. Organic contaminants and pharmaceuticals are typically found at low concentrations in sludge, the risks from sludge-amended soil decrease over time owing to its biodegradability. On the other hand, application of sludge generally increases soil salinity, which may cause physiological damage to plants grown in sludge-amended soil. In some extent, this negative effect can be alleviated by means of dilution; however, greater attention should be paid to long term increasing possible risk of eutrophication. Heavy metal (particularly of mobile heavy metals, such as Cd) with high concentrations in sludge and soil receiving considerable sludge can cause its incremental abundance in soil and crop contamination, further posing risks to humans, but most cases showed that there remained not excessive in heavy metal caused by sludge amendment. It is worth noting that increasing soil organic matter content may reduce transfer of heavy metal from soil to crops, but not restrict its uptake by crops at all. Combined literature together, it is summarized that heavy metal becomes a relatively severe bottleneck in recycling of sludge as soil amendment due to its nonbiodegradability and potential damage to health by adventuring contamination from agricultural products. Particular attention should therefore be paid to long term monitoring the change of heavy metals concentration in sludge amended soil.

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Section: Influence Of Sludge Amendment On the Uptake Of Heavy Metals mentioning

confidence: 99%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

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“…About more than 450 plant species are found to accumulate extraordinarily high amounts of heavy metals, which are termed hyperaccumulators and have the potential to be used for phytoremediation [14]. Wheat belongs to non-hyperaccumulators, but still accumulates high amount of heavy metals, especially in grains [10]. Besides, plant genotypes differ in their uptake, translocation, accumulation of trace metals [4], and similar phenomenon was observed in wheat plants and asparagus bean cultivars [9,22].…”

Section: Introductionmentioning

confidence: 93%

Density-dependent Accumulation of Heavy Metals in Spring Wheat (Triticum Aestivum ) and the Risk Assessment from Weak Alkaline Soils, Northwest of China

Ma¹,

Zhu²,

Ai³

et al. 2016

IJAST

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In order to investigate the effects of planting density on accumulation of heavy metals in spring wheat, a weak alkaline agricultural district mainly contaminated by heavy metals Cu, Zn, Pb and Cd, was chosen in 2014. Five planting densities (114×10 4 , 174×10 4 , 249×10 4 , 369×10 4 and 519×10 4 plants hectare -1 , respectively) were designed and the level of heavy metals in soil and in various parts (root, stem, leaf, husk and grain) of spring wheat were detected, and then the health risk to human health was assessed via hazard quotient. The results indicate that concentrations of Pb and Cd in each part of spring wheat plant are negatively correlated with planting density, similar but weaker trends are observed for those of Cu and Zn. The hazard quotient of heavy metals through food chain is markedly reduced with increasing planting density, especially for Pb and Cd at higher planting densities (369×10 4 and 519×10 4 plants hectare -1 ). Conclusively, the present study shows that suitable planting density could be a feasible cultivation method for ensuring the safety of wheat products and human health on slightly polluted alkaline soils.

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“…However, many sludges also contain inorganic and organic contaminants that may have detrimental effects on soils and plants when supplied in excessive amounts (Singh and Agrawal 2007;Achiba et al 2009;Masto et al 2012). The repeated application of sewage sludge may lead to the accumulation of heavy metals and organic pollutants such as antibiotics, antibiotic resistance genes and persistent organic pollutants in the soil, with negative effects on crop yields and potential contamination of the human food chain (Chaney 1990;Moreno et al 1997;Qiao et al 2003;Iwegbue et al 2007;Kidd et al 2007;Jamali et al 2009;Hao et al 2011;Nabulo et al 2011;Zhu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Repeated Phytoextraction of Cadmium and Zinc from an Agricultural Soil Contaminated with Sewage Sludge

Luo

Liu

et al. 2015

International Journal of Phytoremediation

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Long-term application of sewage sludge resulted in soil cadmium (Cd) and zinc (Zn) contamination in a pot experiment conducted to phytoextract Cd/Zn repeatedly using Sedum plumbizincicola and Apium graceolens in monoculture or intercropping mode eight times. Shoot yields and soil physicochemical properties changed markedly with increasing number of remediation crops when the two plant species were intercropped compared with the unplanted control soil and the two monoculture treatments. Changes in soil microbial indices such as average well colour development, soil enzyme activity and soil microbial counts were also significantly affected by the growth of the remediation plants, especially intercropping with S. plumbizincicola and A. graveolens. The higher yields and amounts of Cd taken up indicated that intercropping of the hyperaccumulator and the vegetable species may be suitable for simultaneous agricultural production and soil remediation, with larger crop yields and higher phytoremediation efficiencies than under monoculture conditions.

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Heavy metal accumulation in different varieties of wheat (Triticum aestivum L.) grown in soil amended with domestic sewage sludge

Cited by 212 publications

References 40 publications

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Density-dependent Accumulation of Heavy Metals in Spring Wheat (Triticum Aestivum ) and the Risk Assessment from Weak Alkaline Soils, Northwest of China

Efficiency of Repeated Phytoextraction of Cadmium and Zinc from an Agricultural Soil Contaminated with Sewage Sludge

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