Application of different single extraction procedures for assessing the bioavailability of heavy metal(loid)s in soils from overlapped areas of farmland and coal resources

Luo, Peng; Xiao, Xilong; Han, Xianhong; Yu, Ma; Sun, Xiaofei; Jiang, Jiachao; Wang, Hui

doi:10.1007/s11356-019-04833-8

Cited by 21 publications

(13 citation statements)

References 85 publications

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“…According to the symbol of variables, high soil pH and AK restricted Cd and Cu accumulation in wheat grains, respectively. Wang et al 17 observed that high soil pH restricted Cd accumulation in wheat grains, whereas Luo et al 12 reported that Cu uptake in wheat grains could be better explained based on mixed extraction methods.…”

Section: Discussionmentioning

confidence: 99%

“…are the most extensively used methods, considering their relative simplicity and low time requirements. Nevertheless, numerous studies investigating soil heavy metal bioavailability have applied either single or mixed extractants 12 , 13 , and no single method has been applied universally. Most studies have demonstrated that the amounts of heavy metal in soil determined by various extraction methods are only suitable for predicting bioaccumulation of specific metals in certain plants 14 – 16 .…”

Section: Introductionmentioning

confidence: 99%

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Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Shen

Dou³

et al. 2022

Sci Rep

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Mining activities have increased the accumulation of heavy metals in farmland soil and in food crops. To identify the key soil properties influencing heavy metal bioavailability and accumulation in food crops, 81 crop samples and 81 corresponding agricultural soil samples were collected from rape, wheat, and paddy fields. Heavy metal (copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), iron (Fe), and manganese (Mn)) concentrations in soils and rape, wheat, rice grains were determined using inductively coupled plasma atomic emission spectroscopy, and soil physicochemical properties (pH, organic matter, total nitrogen, total phosphorus, available phosphorus, and available potassium (AK)) were analyzed. Soil extractable metals were extracted using various single extractants (DTPA, EDTA, NH4OAc, NH4NO3, and HCl). The average concentrations of Cu, Zn, Pb, Cd, and Mn in the soil samples all exceeded the local geochemical background value (background values of Cu, Zn, Pb, Cd, and Mn are 43.0, 81.0, 28.5, 0.196, and 616 mg/kg, respectively), and Cd over-standard rate was the highest, at 98%. Furthermore, soil total Cd concentrations (0.1–24.8 mg/kg) of more than 86% of the samples exceeded the soil pollution risk screening value (GB 15618-2018). The sources of Cu, Zn, Pb, Cd, and Mn in soils were mainly associated with mining activities. The key factors influencing heavy metal bioavailability were associated with the types of extractants (complexing agents or neutral salt extractants) and the metals. Cd and Pb concentrations in most wheat and rice grain samples exceeded the maximum allowable Cd and Pb levels in food, respectively, and Cd concentrations in approximately 10% of the rice grain samples exceeded 1.0 mg/kg. Furthermore, rice and wheat grains exhibited higher Cd accumulation capacity than rape grains, and despite the high soil Cd concentrations in the rape fields, the rape grains were safe for consumption. High soil pH and AK restricted Cd and Cu accumulation in wheat grains, respectively. Soil properties seemed to influence heavy metal accumulation in rice grains the most.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Shen

Dou³

et al. 2022

Sci Rep

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“…Most of the plants have spontaneous potentiality to absorb varied and large amounts of bioavailable forms of trace elements (Luo, et al 2019). The high rate of transpiration could lead to the absorption of trace elements from soil and transfer elements to shoot and grain (Abbas, et al 2017;Zhou, et al 2019;Zuo, et al 2019).…”

Section: Translocation Capacitymentioning

confidence: 99%

“…In China, the prevalence of trace elements in contaminated soils is considered to be the highest potential risk to food safety and human health (Chen, et al 2016;Luo, et al 2019). Contaminated agricultural land has been used to produce crops to meet the needs of a growing population (Ran, et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China

Tudi

Ruan

et al. 2020

Ecotoxicology

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Pollution resulting from toxic trace elements is an increasing concern around the world especially in developing countries such as China. Rapid industrialisation, urbanisation and agricultural development are the dominant sources of anthropogenic contamination contributing to an increased potential toxicity of trace elements in the irrigation water-soil-food chain. Xin Jiang of China is a reserved cultivated land development area that could provide the most extensive strategic support for food production and arable land security in China. Thus, it is crucial to investigate the bioaccumulation and translocation of trace elements in order to assess the ecological and human health risks in the traditional oasis system of the agricultural areas in Bay Cheng County, Xin Jiang.This study analysed the levels of trace elements in different layers of the soil, the irrigation water and the wheat plants, and the relationships among them. The results indicated that cadmium (Cd) and chromium (Cr) were the primary pollutants in soils and wheats respectively, and they fell into the serious pollution category. However, no trace elements over the pollution limits were detected in irrigation water. The maximum values of trace elements appeared in the soil layers at 5-10 cm and 10-15 cm. The second pollution levels of trace elements in the soil layers were found at 0-5 cm and 0-20 cm, which were higher than those at 20-80 cm. In wheat a high amounts of absorption for Se, Cr, Zn and Cu, but low for Pb were detected in different parts of the plant. The roots of wheats were more eco-toxic to Cd, Co and Pb than other tissues, indicating that roots were more effective at absorbing Cd, Co and Pb, as these metals are usually toxic in the soil. Se, Cu and Zn showed a higher ability of being transferred from soils to the edible parts of crops. The bio-transfer factors of Zn, Mo, Cu, Mg and Mn were considerably higher than those of other elements. The average cancer risk of As, Cd, Co, Ni and TCR in wheat grains exceeded the safety reference limit 3

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“…Soil pollution with coal-derived compounds has been reported across the globe (Espitia-Pérez et al, 2018;Luo et al, 2019;Maqbool et al, 2019). Soil is the most commonly encountered geomaterial.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2021

MGPB

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Selenium (Se), an essential trace element that is toxic when humans and animals are exposed to it in excess, is ubiquitous in coal. For centuries, superhigh-organic-sulfur (SHOS) Raša coal, enriched in S, Se, U, V, and Mo, was mined and processed across the Mediterranean Raša Bay area, located in the Istrian peninsula (in the northern Adriatic Sea, Croatia). There is concern that Raša coal mine water is contaminating local water, soil, and crops. The aim of this monitoring study was to determine the levels of Se and selected potentially toxic trace (As, Cd, Cu, Cr, Mo, Pb, U, V, and Zn), and minor (Fe and Mn) elements in Raša coal mine water, surface water, and associated vegetables, one fruit, and wild plants. Levels of Se in coal mine water were increased (up to 12 μg/L) compared to the maximum allowed water Se (10 μg/L). Compared to an EU average soil Se (1.15 mg/kg), Raša garden soil showed a 5-fold increase in Se. Compared to Croatian and Greek vegetable Se levels (low to normal), Raša vegetables showed a 20-fold, and a 50-fold increase in Se, respectively. Although approximative only, estimates of daily intake (EDI) of Se for mixed Raša vegetables (n = 21) showed a high level (0.055 mg/day). Namely, recommended dietary allowances (RDA) of Se for females and males are 0.055 mg/day, and 0.070 mg/ day, respectively. The EDI values of the analyzed vegetables contributed to average RDA levels as follows: garlic (183%), turnip (154%), parsley (147%), onion and gourd (76%), lettuce (74%), kale (62%), radicchio (51%), and potato (20%). Although the calculated EDI for the analyzed Raša vegetables was 1/8 the toxic dose (>0.4 mg/day), these results call for further research on the dietary and nutritional status of the residents in terms of Se.

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Application of different single extraction procedures for assessing the bioavailability of heavy metal(loid)s in soils from overlapped areas of farmland and coal resources

Cited by 21 publications

References 85 publications

Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Effects of soil properties on heavy metal bioavailability and accumulation in crop grains under different farmland use patterns

Bioaccumulation and translocation of trace elements in soil-irrigation water-wheat in arid agricultural areas of Xin Jiang, China

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