Survey of Cadmium Levels in Vegetables and Soils of Greater Sydney, Australia

Jinadasa, K.B.S.N.; Milham, Paul J.; Hawkins, C. A.; Cornish, Peter S; Williams, Peter; Kaldor, C. J.; Conroy, Jann P.

doi:10.2134/jeq1997.00472425002600040002x

Cited by 96 publications

(41 citation statements)

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“…These findings are in close agreement with the finding stating that poultry manure is very rich animal manure that boosts soil productivity better than other organic manures and gives considerable increase in organic C, available P and exchangeable cations (Gupta et al, 1997;Jinadasa et al, 1997). In fact, it is important to note that the positive effects of organic manures on plant growth are not only due to temporal availability of essential minerals but also attributable to the improvement of soil physical, chemical and biological characteristics (Lakhdar et al, 2008).…”

Section: Tuber Yield Parameterssupporting

confidence: 92%

Effect of poultry manure on the yield and nutriments uptake of potato under saline conditions of arid regions

Oustani

Halilat

Chenchouni

2015

Emir. J. Food Agric

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In hot arid lands, soil salinity, irrigation with brackish waters and the massive use of mineral fertilizers are major constraints for the development of potato cropping. The current field experiment was conducted in the Sahara Desert of Algeria in order to highlight the effect of organic fertilization on the improvement of potato production and the increase of plant salt-stress tolerance. The variation of yield production parameters and nutritional status of plants were evaluated through a split-plot design including six increasing rates of poultry manure (PM) (0, 20, 30, 40, 50, 60 mt/ha) tested in three experimental sites with increasing salinity levels: low saline soil (electrical conductivity 'EC' = 0.9 dS/m), saline soil (EC = 2.2 dS/m) and high saline soil (EC = 5.9 dS/m). The results revealed a significant and proportional increasing of all studied yield parameters (number, seize and yields of tubers) with the increase of PM rates compared to the control. The effect of the interaction (PM × salinity level) showed that the highest yield (44.55 mt/ha) was recorded in plots treated with 60 mt/ha of PM in high saline soils. The assessment of nutritional status at flowering stage of potato plants demonstrated that concentrations of K+ and N increased while Na+ concentrations decreased, in both leaves and roots, as PM rates increasing, principally beneath high salinity level. Our findings suggest the dose of 60 mt/ha of PM is an optimal amount producing the best tuber yields under saline conditions in arid soils.

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Section: Tuber Yield Parameterssupporting

confidence: 92%

Effect of poultry manure on the yield and nutriments uptake of potato under saline conditions of arid regions

Oustani

Halilat

Chenchouni

2015

Emir. J. Food Agric

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“…The levels of heavy metals (Zn, Mn, Cu and Pb) in vegetable (Talinum triangulare) collected from selected markets of bayelsa, Nigeria were found to be high. The partitioning of heavy metals is well known, with accumulation of greater concentrations in the edible portions of leafy or root crops than the storage organs or fruits [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

Patrick-Iwuanyanwu¹,

Chioma²

2017

Biochem Anal Biochem

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The aim of this study was to evaluate the concentration of heavy metals namely (Lead (Pb), Nickel (Ni), Cadmium (Cd) and Chromium (Cr)) via consumption of vegetables from selected markets in Bayelsa State, Nigeria. Sixteen different vegetable samples comprising of Bitter leaves (Vernonia amygdalina), Curry leaves (Ocimum basilicum), Scent leaves (Ocimum gratissmum), Water Leaves (Talinum triangulare), Uziza (Piper guineese), Fluted pumpkin (Telferia occidetalis), Okazi (Gnetum africanum), and Okra (Abelmoschus esculentus) were digested and analyzed for heavy metals using Solar Thermo Elemental Flame Atomic Absorption Spectrophotometer (STEF-AAS). Results obtained were used to estimate the health risk of these heavy metals via consumption of the vegetable samples. The results from the study showed that the heavy metal concentration ranged between 0.016 to 1.387 mg/kg, 0.028 to 1.487 mg/ kg, 0.093 to 3.625 mg/kg and 0.893 to 2.478 mg/kg for Pb, Cd, Ni and Cr respectively. The concentration of Pb was below permissible limit recommended by WHO/FAO. The concentration of Cd in O. gratissimum and T. triangulare from both markets exceeded the permissible limit recommended by WHO/FAO and EC/CODEX. The concentration of Ni in O. gratissimum and T. occidetalis from Kpanshia market exceeded the permissible limit recommended by NAFDAC while Cr from both markets exceeded permissible limit recommended by European community/CODEX. The Hazard Index (HI) values for all the samples under study were greater than (>) 1 which indicates that there is potential health risk to those consuming these vegetables except A. esculentus in Kpanshia market for adults which was less than (<) 1. The Target Hazard Quotient (THQ) concentrations of Pb in O. gratissimum, T. occidetalis and G. africanum from Kpanshia market and O. basilicum from Swali market, Cd in T. triangulare and O. gratissimum from both markets and Ni in T. occidetalis from Swali market for children only were all greater than 1 which indicates level of concern that the population may be at risk of either Pb, Ni or Cd toxicity. The Estimated Daily Intake (EDI) concentrations of Pb in O. gratissimum, T. occidetalis and G. africanum all from Kpanshia market, Cd in T. triangulare from both markets, and Ni in all the samples from both markets were all above the permissible tolerable daily intake (PTDI) limit as recommended by EFSA (European Food and Safety Agency) meaning that those who consume this product may be at risk. The results from the present study tends to suggest that consumption of vegetables from both markets under study in Bayelsa state could be one of the contributory factors to the heavy metal burden among consumers due to their frequent consumption.

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“…Many phosphate rocks contain heavy metals such as Pb and Cd and high application rates of phosphorus (P) fertilizer may not only increase soil P but also lead to accumulation of the metals above the maximum limited values [8]- [10]. Jinadasa et al [11] found that Cd concentrations in vegetables could exceed the limited value if the soil Cd concentration reached 0.3 mg•kg −1 Cd. Guanzhong plain lies in the middle of Shaanxi province of China, where the land is fertile with plenty agriculture products, and is one of the principal birthplaces of Chinese Yellow River Valley civilization.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals Contamination in Greenhouse Soils and Vegetables in Guanzhong, China

Liu¹,

Lu²,

Zhang³

et al. 2014

JEAS

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This study used a flame atomic absorption spectrometer (FAAS) and atomic fluorescence spectrophotometer (AFS) to detect the concentrations of chromium (Cr), cadmium (Cd), lead (Pb), hydrargyrum (Hg) and arsenic (As) in soils and three genotypes of vegetables in greenhouse, as well as analyzed the physical and chemical properties of soils, including soil pH, soil organic matter (OM), basic nutrients, electrical conductivity (EC) and cation exchange capacity (CEC) in Guanzhong areas, Shaanxi province, China. The results showed that comparing to subsoil, the sampled topsoil is enriched in Cr, Cd, Pb, As and Hg. Cd Greenhouse soils were becoming acidified year after year; the ratios of N, P and K in soil were seriously imbalanced. According to the impacting factors, OM, pH, available P, EC and CEC have obviously effected the accumulation of Cr and Hg. However, there was not enough evidence for the effects of available nitrogen and available potassium.

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Survey of Cadmium Levels in Vegetables and Soils of Greater Sydney, Australia

Cited by 96 publications

References 0 publications

Effect of poultry manure on the yield and nutriments uptake of potato under saline conditions of arid regions

Effect of poultry manure on the yield and nutriments uptake of potato under saline conditions of arid regions

Evaluation of Heavy Metals Content and Human Health Risk Assessment via Consumption of Vegetables from Selected Markets in Bayelsa State, Nigeria

Heavy Metals Contamination in Greenhouse Soils and Vegetables in Guanzhong, China

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