Uptake of Organic Contaminants from Soil into Vegetables and Fruits

Trapp, Stefan; Legind, Charlotte Nielsen

doi:10.1007/978-90-481-9757-6_9

Cited by 54 publications

(80 citation statements)

References 97 publications

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“…The translocation of organic compounds within plants is affected by several factors, e.g., hydrophilicity. 49 It was found that the TF was at a maximum for compounds having log K ow from −1.03 to 0.92, except for SMZ. Ionization could reduce the translocation of ionized organic compounds to shoots.…”

Section: ■ Materials and Methodsmentioning

confidence: 98%

Distribution of Antibiotics in Wastewater-Irrigated Soils and Their Accumulation in Vegetable Crops in the Pearl River Delta, Southern China

Pan

Wong

Chu

2014

J. Agric. Food Chem.

221

103

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Wastewater is increasingly being used to irrigate agricultural land in many countries around the world. However, limited research has examined the occurrence of antibiotics in soil irrigated with wastewater and their accumulation in plants. This study aimed to determine the distribution of various types of antibiotics in different environmental matrices in the Pearl River Delta (PRD) region and to evaluate their accumulation and translocation in edible crops. Samples were collected from six sites in the PRD where either domestic wastewater or fishpond water was used for irrigation. Results showed that fishpond water irrigated soils had higher concentrations of antibiotics than wastewater-irrigated soils. Different trends were observed in the accumulation of antibiotics in the different edible parts of various crops. Despite the low human annual exposure to antibiotics through the consumption of edible crops (1.10 to 7950 μg/y), the potential adverse effects of antibiotics along the food chain should not be neglected.

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Section: ■ Materials and Methodsmentioning

confidence: 98%

Distribution of Antibiotics in Wastewater-Irrigated Soils and Their Accumulation in Vegetable Crops in the Pearl River Delta, Southern China

Pan

Wong

Chu

2014

J. Agric. Food Chem.

221

103

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“…by the root mass M R (kg) and introducing a first-order growth rate constant (10) Concentrations in the other plant compartments were derived from Equation 7 to 9 analogously.…”

Section: Analytical Solutionsmentioning

confidence: 99%

“…[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]). In most cases, the underlying different equations have been solved for steady-state and/or numerically for dynamic studies.…”

Section: A Rein Et Al Sar and Qsar In Environmental Researchmentioning

confidence: 99%

New concepts for dynamic plant uptake models

Rein

Legind

Trapp

2011

SAR and QSAR in Environmental Research

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Models for the prediction of chemical uptake into plants are widely applied tools for human and wildlife exposure assessment, pesticide design and for environmental biotechnology such as phytoremediation. Steady-state considerations are often applied, because they are simple and have a small data need. However, often the emission pattern is non-steady. Examples are pesticide spraying, or the application of manure and sewage sludge on agricultural fields. In these scenarios, steady-state solutions are not valid, and dynamic simulation is required.We compared different approaches for dynamic modelling of plant uptake in order to identify relevant processes and time-scales of processes in the soil-plant-air system. Based on the outcome, a new model concept for plant uptake models was developed, approximating logistic growth and coupling transpiration to growing plant mass. The underlying system of differential equations was solved analytically for the inhomogenous case, i.e., for constant input. By superposition of the results of n periods, changes in emission and input data between periods are considered. This combination allows to mimick most input functions that are relevant in practice.The model was set up, parameterised and tested for uptake into growing crops. The outcome was compared to a numerical solution, to verify the mathematical structure.

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“…8.1 the various cropspecifi c plant uptake processes are depicted. Active uptake processes, which include energy or enzymes of the plant, have not yet been shown to be signifi cant for organic environmental contaminants (Trapp and Legind, 2011).…”

Section: Modelling Of Uptakementioning

confidence: 99%

“…Other factors in the uptake process are growth dilution, plant lipid content and plant metabolism (Collins et al , 2011). Crop-specifi c models have been developed for roots, potatoes, leaves and fruits (Trapp and Legind, 2011). The models are based on the same physicochemical principles and involve basic processes such as advective uptake into plants, diffusive uptake, chemical equilibrium, transport inside plants in xylem and phloem tissues, dilution by growth, and particle deposition from soil and air.…”

Section: Modelling Of Uptakementioning

confidence: 99%

Organic environmental chemical contaminants in fresh produce and fruits

Cederberg

2014

Global Safety of Fresh Produce

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Uptake of Organic Contaminants from Soil into Vegetables and Fruits

Cited by 54 publications

References 97 publications

Distribution of Antibiotics in Wastewater-Irrigated Soils and Their Accumulation in Vegetable Crops in the Pearl River Delta, Southern China

Distribution of Antibiotics in Wastewater-Irrigated Soils and Their Accumulation in Vegetable Crops in the Pearl River Delta, Southern China

New concepts for dynamic plant uptake models

Organic environmental chemical contaminants in fresh produce and fruits

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