Availability of Cadmium in some Phosphorus Fertilizers to Field-Grown Lettuce

Huang, Biao; Kuo, S.; Bembenek, R.

doi:10.1023/b:wate.0000044832.04770.41

Cited by 61 publications

(32 citation statements)

References 45 publications

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“…There have been attempts to correlate the plant uptake with chemically identifiable fractions of trace element in soil (Singh and Kristen, 1998;McBride, 2002McBride, , 2003Adams et al, 2004;Huang et al, 2004;Kuo et al, 2004). The outcomes however were not conclusive as much of the correlations were not generalized.…”

Section: Elementmentioning

confidence: 99%

“…Plant uptake of trace elements is a dynamic process and is influenced by soil and season related factors (McBride, 2002;Adams et al, 2004;Huang et al, 2004;Kuo et al, 2004;Koo et al, 2006). Foods coming from various sources are intermingled in the market places and in food acquisition the consumers typically have no knowledge of their origin.…”

Section: Introductionmentioning

confidence: 99%

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Characterizing the solid–solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands

Chen

Chang

et al. 2009

Agriculture, Ecosystems & Environment

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Section: Elementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterizing the solid–solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands

Chen

Chang

et al. 2009

Agriculture, Ecosystems & Environment

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“…The high percentage of Cd in the nonresidual phase indicates the bioavailability of this element to the aquatic organisms in the studied lake. There are several sources of Cd in the aquatic systems which include runoff from agricultural areas where phosphate fertilizer which most probably contains Cd (Huang et al, 2004) is applied to the agricultural farms situated around Lake Naivasha. Presence of Cd could also be as a result of road traffic (wear of tyres), which has been described as an important source of Cd emission (Alloway, 1990).…”

Section: Cadmiummentioning

confidence: 99%

Partitioning of heavy metals in the sediments of Lake Naivasha, Kenya

Njenga

Ramanathan

Subramanian

2009

Chemical Speciation & Bioavailability

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Metal fractionation is a powerful tool for studying the mobility, bioavailability and toxicity of metals in sediments and soils. A seven-step sequential extraction technique was used to determine the potential mobility of selected heavy metals (Fe, Mn, Zn, Cu, Pb, Cd and Ni) in the sediments of Lake Naivasha. Results indicate that residual fraction was the most important phase for the elements Fe, Mn, Cu and Zn. However, Pb and Cd are highly enriched in the non-residual phases. Nickel on the other hand was distributed evenly between the non-residual and the residual fractions.The total concentrations of the heavy metals suggested a decreasing order of iron4 4 4manganese 4zinc4nickel4copper4lead4cadmium. However, the detailed sequential extraction data indicated an order of release or mobility of cadmium4lead 4nickel4zinc4manganese4copper4iron. The high percentage of Cd and Pb in the mobile fractions suggests high bioavailability of these two elements in the study area and maybe a pointer to anthropogenic input of the two elements in the study area.

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“…The accumulation of Cd and other potentially hazardous trace elements in agricultural soils is a concern because these soils serve as an entry point for elements into the human food chain. The concentrations of trace elements in harvested plant tissue are often correlated to the concentrations of soils, especially when the soils were contaminated (He and Singh, 1994;Guttormsen et al, 1995;Grant and Bailey, 1998;Huang et al, 2004). If factors such as the pH and organic matter content of the soils are comparable, the Cd uptake by plants grown in these soils is proportional to the Cd concentration of the surface soil layer (Loganathan et al, 1995).…”

Section: Introductionmentioning

confidence: 99%