Cadmium uptake by onions, lettuce and spinach in New Zealand: Implications for management to meet regulatory limits

Cavanagh, Jo; Yi, Zhigang; Gray, C. W.; Munir, Kiran; Lehto, Niklas J.; Robinson, Brett

doi:10.1016/j.scitotenv.2019.03.010

Cited by 25 publications

(9 citation statements)

References 40 publications

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“…However, of those soils with an Olsen P concentration above the agronomic target a large proportion were in Volcanic dairy soils (Figure 1). Soils used for horticulture, specifically vegetable production, can have high Olsen P concentrations (>100 mg L −1 ) (Cavanagh et al, 2019). However, this was only occasionally detected in regions.…”

Section: State and Trends In Olsen P Concentrationsmentioning

confidence: 99%

The Ability to Reduce Soil Legacy Phosphorus at a Country Scale

McDowell

Dodd

Pletnyakov

et al. 2020

Front. Environ. Sci.

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The build-up of soil phosphorus (P) beyond plant requirements can lead to a longterm legacy of P losses that could impair surface water quality. Using a database of ∼4,50,000 samples collected from 2001-2015 we report the level of soil P enrichment by soil type, land use and region and the time it would take for Olsen P to decline to agronomic targets (20-0 mg L −1 ) if P fertilizer was stopped. We also modeled the time it would take for water extractable P (WEP), an indicator of P losses in surface runoff, to decline to an environmental target (0.02 mg L −1 ). Some 63% of the samples were enriched beyond agronomic targets. The area-weighted median time to reach the agronomic target was predicted to occur within a year for 75% of samples but varied up to 11.8 years in some land uses. However, the area-weighted time to reach an environmental target was 26-55 years for the 50th and 75th percentile of areas. This indicates that while an agronomic target can be easily met, additional strategies other than stopping P fertilizer inputs are required to meet an environmental target.

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Section: State and Trends In Olsen P Concentrationsmentioning

confidence: 99%

The Ability to Reduce Soil Legacy Phosphorus at a Country Scale

McDowell

Dodd

Pletnyakov

et al. 2020

Front. Environ. Sci.

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“…El contenido de cadmio (total 0,09-0,13 mg/kg y biodisponible 0,0218-0,049 mg/kg) para las muestras de suelo se encontró dentro de los estándares de calidad ambiental establecidos para suelos, de acuerdo con el MAE (valores por debajo de 0,5 mg/kg). Los resultados obtenidos para este metal se encuentran dentro de los valores reportados (0,07-1,35 mg/kg) en suelos de Nueva Zelanda (Cavanagh y col., 2019); sin embargo son menores a los reportados en suelos de un área petroquímica (0,25-1,50 mg/kg) en Sardinia, Italia (Cortis y col., 2016) y en sedimentos del lago de Texco-co (0,64-2,28 mg/kg), ubicado al este del Cinturón Volcánico Transmexicano (Sedeño-Díaz y col., 2020). En otro estudio realizado en sedimentos del lago Caviahue, Argentina, afectado por fluidos del volcán Copahue los valores de cadmio estuvieron por debajo del límite de detección (Cabrera, Temporetti y Pedrozo, 2015).…”

Section: Contenido De Metales En Suelo Y Cebollaunclassified

“…En cuanto al contenido de Cd en la porción co-mestible de cebolla en ramas (0,0188-0,030 mg/kg) fue comparable con otra variedad de cebolla de Nueva Zelanda donde han reportado 0,007-0,05 mg/kg (Cavanagh y col., 2019). Adicionalmente, de acuerdo con las legislaciones consultadas en todos los casos las muestras se encontraron por debajo de los límites establecidos del contenido de cadmio (0,1 mg/kg para Unión Europea, Australia, Codex Alimentarius y 0,03 mg/kg para Rusia).…”

Section: Contenido De Metales En Suelo Y Cebollaunclassified

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2020

lgr

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“…Cadmium (Cd) is a toxic heavy metal with adverse impacts on human health. One of the primary sources of Cd intake for humans is the consumption of crops containing Cd [1][2][3]. Cadmium accumulation in crops has been a major concern worldwide due to the potential health risks of accessing the human diet and/or trade risks where crop standards are not fitted.…”

Section: Introductionmentioning

confidence: 99%

Variation in Cadmium Accumulation among Potato Cultivars Grown on Different Agricultural Sites: A Potential Tool for Reducing Cadmium in Tubers

et al. 2021

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Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export market. The addition of agrochemicals with possibly containing heavy metals, such as cadmium (Cd), decreases the quality of the final product. Generally, little is known about the factors that influence Cd content in this crop. The current study estimated the Cd levels in different organs of three potato cultivars grown in four commercial regions across Egypt. Further, we investigated the soil properties that affected Cd uptake during two growing seasons. With the exception of the Cd content of the soils, no relationships were detected between the tested soil properties (i.e., pH, conductivity, organic matter, and clay content) and Cd content in potato organs, because the soil from different regions showed comparable levels for these parameters. The average Cd content in the peeled tubers among different cultivars (0.145 mg Kg−1 DW) was below the maximum limit (0.5 mg Kg−1 DW). The patterns of Cd accumulation in potato organs were constant among cultivars, with the highest levels detected in leaves (~82%), followed by stems (~16.5%), and the lowest content observed in tubers (~1.5%). The study showed that the tested potato cultivars exhibited diversity in the accumulation levels of Cd in the tubers (~2.6-fold). The cultivar Suntana displayed the lowest Cd levels among different field sites for the two growing seasons, suggesting the potential involvement of genetic factors.

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Cadmium uptake by onions, lettuce and spinach in New Zealand: Implications for management to meet regulatory limits

Cited by 25 publications

References 40 publications

The Ability to Reduce Soil Legacy Phosphorus at a Country Scale

The Ability to Reduce Soil Legacy Phosphorus at a Country Scale

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Variation in Cadmium Accumulation among Potato Cultivars Grown on Different Agricultural Sites: A Potential Tool for Reducing Cadmium in Tubers

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