Meta-analysis of soil mercury accumulation by vegetables

Yu, Haixin; Li, Jing; Luan, Yaning

doi:10.1038/s41598-018-19519-3

Cited by 53 publications

(24 citation statements)

References 20 publications

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“…Our values matched with the fraction of different metals studied in two different soils (Dočekalová et al 2012). It is known that the Hg concentration in most crops is mainly in its inorganic form (WHO 1991) which is more mobile than the organic species because of the adsorption into soil particles, reducing the direct flow into the soil water (Yu et al 2018). Therefore, the use of both DGT devices allows us to know which part can be rapidly uptaken by plants in the early growth stages.…”

Section: Dgt and Lettuce Measurementssupporting

confidence: 72%

Diffusive gradient in thin films with open and restricted gels for predicting mercury uptake by plants

2019

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Worldwide concern regarding mercury (Hg) toxicity and the associated risk for human beings calls for an easy tool to determine the bioavailable Hg which would be able to predict the transfer of Hg from soils to crops. In this study, Diffusive Gradient in Thin Films (DGT) is used as a passive sampler tool to determine the bioavailability of Hg in agricultural soils containing different amounts of Hg (0.016 and 0.65 mg kg -1 ). For the first time, we have used homemade manufactured open and restricted diffusive layers to distinguish between inorganic and organic bioavailable Hg species in soil. It should be highlighted that this is the first study that demonstrates the successful use of restricted gel for the determination of inorganic Hg species in soil. Moreover, a model program has been used to calculate the effective concentration for predicting Hg concentration uptake by plants. For this purpose, lettuces were planted in the different soils tested to determine Hg soil-to-plant transfer. Concentrations of Hg obtained by DGT measurements in the soil matched the Hg concentration found in lettuce roots, confirming the effectiveness of this technique in predicting Hg uptake by plants.

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Section: Dgt and Lettuce Measurementssupporting

confidence: 72%

Diffusive gradient in thin films with open and restricted gels for predicting mercury uptake by plants

2019

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“…De Temmerman et al [46] indicate that under experimental setting, there is no evidence of any root uptake of mercury in growing leafy vegetables in a peat based substrate. Yu et al [47] examined the role of soil mercury in vegetable absorbtion. Enrichment ability was higher in green pepper, spinach, cabbage and Chinese cabbage.…”

Section: Discussionmentioning

confidence: 99%

Mercury accumulation in plants from contaminated arable lands in Eastern Slovakia

Kimáková¹,

Vargová²,

Onačillová³

et al. 2020

Ann Agric Environ Med.

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Introduction and Objective. Contamination of soil by mercury poses several risks to human health through consumption of fruits and vegetables. In Slovakia, a high concentration of mercury is found in the soil of the Central Spiš region. The objective of the study is to measure the mercury concentrations in the parts of selected plant species and trees growing within 100 meters of a former ore processing facility. Materials and Method. A total of 24 samples of plants, 20 samples of parts of needle-leaved trees and 9 samples of parts of broad-leaved trees were collected from soils with a high concentration of mercury. The concentration was measured by atomic absorption spectrometry in different parts of the plants: leaves -18 species, roots -15 species, stems -11 species, flowers -7 species), and different parts of trees (crust -8 species, branches -8 species, needles -5 species, cones -5 species, leaves -3 species). Results. The concentrations of mercury in the soils taken at a depth of 0.25 m exceeded the maximum allowed levels more than 50-times. Potatoes, parsley and carrots from these soils exceeded the maximum allowed mercury levels 6-times, 5-times and twice, respectively. The average concentrations of mercury in the roots of 2-year onions exceeded the limit more than 50-times. The flowers of cornflower contain 18.20 mg . kg -1 , leaves of dandelion 10.61 mg . kg -1 and roots of plantain 6.80 mg . kg -1 of mercury. Regarding trees, the highest concentrations were found in the branches of juniper and leaves of aspenmore than 1 mg . kg -1 . Conclusions. The systematic monitoring of mercury is still very important, since it was found that the end of ore processing does not solve the issue of contamination in the Central Spiš region. Therefore, the consumption of fruits and vegetables from the areas of former ore processing facilities is not recommended.

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“…Recent consumption of red vegetables, leafy vegetables, or vegetable oil was associated with higher THg among both seafood and non-seafood consumers and MeHg among seafood consumers, after adjustment for demographic variables. Several studies have suggested that leafy vegetables or other plants are able to uptake mercury as a result of local mercury contamination in soil ( 60 – 64 ), air ( 65 , 66 ), water ( 67 , 68 ); or from mercury-containing biosolids applied to soils ( 69 – 72 ). Epidemiology studies have also identified associations of vegetables with mercury biomarkers among populations living near areas with environmental mercury contamination ( 37 , 57 ), as well as populations in Korea ( 38 ) and Finland ( 35 ).…”

Section: Discussionmentioning

confidence: 99%

Seafood, wine, rice, vegetables, and other food items associated with mercury biomarkers among seafood and non-seafood consumers: NHANES 2011–2012

Wells

Kopylev

Nachman

et al. 2020

J Expo Sci Environ Epidemiol

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Fish/seafood consumption is a source of mercury; other dietary sources are not well described. This cross-sectional study used National Health and Nutrition Examination Survey (NHANES) 2011–2012 data. Participants self-reported consuming fish/seafood (N=5427) or not (N=1770) within the past 30 days. Whole blood total mercury (THg), methylmercury (MeHg) and urinary mercury (UHg) were determined. Diet was assessed using 24-hour recall. Adjusted regression models predicted mercury biomarker concentrations with recent food consumption while controlling for age, sex, education, and race/ethnicity. Geometric mean THg was 0.89 μg/L (95% confidence interval (CI): 0.78, 1.02) (seafood consumers) and 0.31 μg/L (95% CI: 0.28, 0.34) (non-seafood consumers); MeHg and UHg concentrations follow similar patterns. In adjusted regressions among seafood consumers, significant associations were observed between mercury biomarkers with multiple foods, including fish/seafood, wine, rice, vegetables/vegetable oil, liquor and beans/nuts/soy. Among non-seafood consumers, higher THg was significantly associated with mixed rice dishes, vegetables/vegetable oil, liquor and approached statistical significance with wine ( p <0.10); higher MeHg was significantly associated with wine and higher UHg was significantly associated with mixed rice dishes. Fish/seafood consumption is the strongest dietary predictor of mercury biomarker concentrations; however, consumption of wine, rice, vegetables/vegetable oil, or liquor may also contribute, especially among non-seafood consumers.

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Meta-analysis of soil mercury accumulation by vegetables

Cited by 53 publications

References 20 publications

Diffusive gradient in thin films with open and restricted gels for predicting mercury uptake by plants

Diffusive gradient in thin films with open and restricted gels for predicting mercury uptake by plants

Mercury accumulation in plants from contaminated arable lands in Eastern Slovakia

Seafood, wine, rice, vegetables, and other food items associated with mercury biomarkers among seafood and non-seafood consumers: NHANES 2011–2012

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