Accumulation status, sources and phytoavailability of metals in greenhouse vegetable production systems in Beijing, China

Xu, Li; Lu, Anxiang; Wang, Jihua; Ma, Zhiyong; Pan, Ligang; Feng, Xiaoyuan; Luan, Yunxia

doi:10.1016/j.ecoenv.2015.07.025

Cited by 92 publications

(32 citation statements)

References 38 publications

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“…A similar result showed the contribution rate of soil Cd content to BCF was over 76.0% in jujube and persimmon . However, soil pH was the primary factor to BCF in wheat plants, vegetables for 68.1% and grains for 52.0% . By comparison, the contribution rate of soil pH to uptake effect of THMs was a crucial factor in vegetables and grains (wheat, corn and rice).…”

Section: Resultsmentioning

confidence: 56%

“…Stepwise multiple linear regressions were employed to form the single variable or multivariate equation models . The concentration prediction models for five THMs were established in edible parts of vegetables . Soil pH and OC content played important roles in the uptake effect of THMs.…”

Section: Resultsmentioning

confidence: 99%

“…19,39 The concentration prediction models for five THMs were established in edible parts of vegetables. 40 Soil pH and OC content played important roles in the uptake effect of THMs. However, soil properties as extremely important factors were seldom taken in to account in previous models.…”

Section: The Risk Prediction Model For Thms In Chestnutmentioning

confidence: 99%

“…23 However, soil pH was the primary factor to BCF in wheat plants, 43 vegetables for 68.1% 19 and grains for 52.0%. 40 By comparison, the contribution rate of soil pH to uptake effect of THMs was a crucial factor in vegetables and grains (wheat, corn and rice). However, soil Cd content played an important role in uptake of THMs by the edible part of tree-fruits and tree-nuts.…”

Section: The Contribution Rate Of Soil Parameters To Thms In Chestnutmentioning

confidence: 99%

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Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

Zheng

et al. 2019

J Sci Food Agric

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BACKGROUND Toxic heavy metals (THMs) cause severe environmental hazards and threaten human health through various consumption of food stuff. However, little is known of THMs in chestnuts. In this study, the risk assessment and prediction of THMs [lead (Pb), arsenic (As), chromium (Cr), cadmium (Cd) and mercury (Hg)] in chestnuts and growth soils from China were investigated. RESULTS The main detected THMs in chestnuts and growth soils were As and Cd. The total pollution levels of the five THMs (Nemerow pollution indexes, NPIs) were 0.062 and 1.06, respectively. The dietary risks for children were higher than those of adults, especially short‐term non‐carcinogenic risk. The main combined risks from the relationships between THMs were Pb‐Cr (r = 0.85, P < 0.01) in chestnuts and Pb‐As (r = 0.59, P < 0.01) in growth soils. The risk source was found to be the uptake effect of THMs from soil to chestnut, with the highest bioaccumulation factors (BCFs) of Cd (0.254). Several comprehensive risk models were established with the highest coefficient of determination (R2) of 0.79. In addition, the main contribution rates of different soil parameters to comprehensive risk of THMs uptake were 49.8% (Cd), 23.4% (pH), 13.8% (Cr) and 13.0% (organic carbon). CONCLUSION The total pollution levels of THMs fell outside of the safety domain in growth soils. Furthermore, more attention needs to be paid to Cd pollution owing to its low environment background value and high accumulation ability. Three main soil parameters (Cr content, pH, organic carbon) played important roles in the formations and accumulations of THMs in chestnuts. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Section: The Risk Prediction Model For Thms In Chestnutmentioning

confidence: 99%

Section: The Contribution Rate Of Soil Parameters To Thms In Chestnutmentioning

confidence: 99%

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Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

Zheng

et al. 2019

J Sci Food Agric

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“…Similarly, Salazar and Pignata (2014) reported high level of lead exceeding national and international norms in soils and native plants in Córdoba, Argentina. Uptake and transfer of heavy metals through food crops are affected by the level of metals in soils, soil properties, pH, age of food crop, food crop types and species (Rafiq et al 2014;Xu et al 2015;Yang et al 2015). It becomes imperative to evaluate heavy metal uptake by food crops and assess the potential health risks.…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of heavy metals in soil and selected food crops cultivated in Kogi State, north central Nigeria

Emurotu

Onianwa

2017

Environ Syst Res

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Background: Heavy metal contamination in Nigeria soils is well documented. However, there is dearth of information on the intake of toxic heavy metals by some food crops cultivated in Nigeria soil. Accumulation of toxic heavy metals in edible food crops is a potential threat to human and animal health. Hence, a study on soil to food crop relation in terms of heavy metals accumulation is expedient. In this study, the levels of Cd, Co, Cu, Ni, Pb and Zn in soils and food crop samples from nine major commercial and individual farms were investigated for their contamination in soil and accumulation in food crops.Methods: Soil samples were collected from thirty-two farmlands at two depths of 0-15 and 15-30 cm in each farm and control site, to make 320 composite samples. A total of 640 edible food crop samples (pumpkin 64, passion fruit 96, maize grain 96, sugar cane stem 64 and tubers of cassava 320) were collected. Results:The results revealed that the levels of Cd ranged from 0.07 to 9.80 mg/kg, Co 0.05-38.1 mg/kg, Cu 0.33-16.9 mg/kg, Ni 3.81-93.1 mg/kg, Pb 4.45-47.7 mg/kg and Zn 5.02-81.4 mg/kg in topsoils. There was no significant difference (P > 0.05) in the levels of these heavy metals in subsoils and among farms. Except in pumpkin, nickel concentration in all the investigated food crops exceeded regulatory limits set by the World Health Organization and the Food and Agriculture Organization. Similarly, the concentration of Cd and Co in pumpkin exceeded regulatory limits. Soil-plant transfer factors indicated low accumulation into crops except Co in maize and Ni in cassava.Conclusion: Therefore, soil may require mild remediation action to minimize possible sources of Co and Ni contamination such as irrigation and fertilizer application practices. The concentration of Cd in food crops could be of health concern if such crops are ingested.

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Identification of spatial patterns and sources of heavy metals in greenhouse soils using geostatistical and positive matrix factorization (PMF) methods

Meng

Yang

et al. 2021

Land Degrad Dev

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Greenhouse vegetable products are important dietary sources. Heavy metals in greenhouse soils are associated with food safety and public health. Therefore, heavy metals in greenhouse soils are of significant concern. This study used positive matrix factorization (PMF) and geostatistical analyses to assess possible sources and spatial distribution patterns of heavy metals in 248 greenhouse soil samples obtained from southern Hebei Province, China. The results showed that the mean arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn) concentrations in the greenhouse soil samples were 13.5, 0.16, 74.3, 31.4, 0.03, 26.0, 156, and 98.0 mg/kg, respectively. Approximately 97.18%, 32.26%, 25.81%, 22.98%, 8.06%, 6.45%, 2.02%, and 0.40% of sample sites were contaminated with Cd, Cu, Hg, Zn, Cr, As, Pb, and Ni, respectively. The PMF indicated that Cd and Pb was mainly influenced by metal smelting activity; Cu and Zn accumulation in greenhouse soils was mainly from manure and chemical fertilizer application, while Ni, Cr, and As were strongly derived from natural sources. The spatial distribution patterns varied among metals, with Ni and Pb mainly controlled by natural factors, whereas Cd, Cu, Cr, and Zn were moderately to strongly influenced by fertilizer application. However, Pb is also affected by atmospheric deposition caused by industrial emissions. The spatial distribution of As is controlled by both natural and anthropogenic factors.

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Accumulation status, sources and phytoavailability of metals in greenhouse vegetable production systems in Beijing, China

Cited by 92 publications

References 38 publications

Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

Bioaccumulation of heavy metals in soil and selected food crops cultivated in Kogi State, north central Nigeria

Identification of spatial patterns and sources of heavy metals in greenhouse soils using geostatistical and positive matrix factorization (PMF) methods

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