Effects of Soil Properties and Flooding on the Mobility and Transformation of Mercury in a Temperate Riparian Wetland

Zhang, Y. R.; Wang, R. Q.; Xue, Tong; Ge, Xiuli; Liu, J.

doi:10.1080/15320383.2015.946594

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…In 80 % of cases, the values were less than 60 μg kg −1 . This may be explained by the lowest pH being measured in Luvisol, due to the high adsorption of mercury onto organic matter under acidic conditions (Schwesig et al 1999;Zhang et al 2015). Moreover, at low pH values, the highest formation of insoluble mercuric sulfide can lead to a low solubility of mercury (Winfrey and Rudd 1990).…”

Section: Comparisons Of Inorganic and Organic Mercury Sources And Indmentioning

confidence: 95%

Mobility of mercury in soil as affected by soil physicochemical properties

et al. 2016

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Purpose The interaction of mercury with organic matter was studied on three soils with distinct physical-chemical compositions (Fluvisol, Luvisol, and Chernozem) and three vermicomposts based on various bio-waste materials (digestate, kitchen waste with woodchips, and garden bio-waste). Materials and methods Laboratory batch experiments, in which organic matter composition was modeled by adding graded doses of vermicompost to individual soils, were carried out. The composition of organic matter in these vermicomposts was assessed via fractionation of humic acids, fulvic acids, hydrophilic compounds, and possible hydrophobic neutral organic matter. Furthermore, the samples were artificially contaminated with inorganic and organic mercury. Prepared samples were stored under constant temperature of 25°C. The incubation experiments lasted for 56 days, in which the samples were taken ten times. During the experiments, the changes in mercury mobile phase amount were observed, and the influence of the source of contamination was evaluated. Results and discussion The amount of mobile mercury increased and then decreased during the time. In most of the soils and vermicompost combinations, the content of mercury bound to the soil was stable after 21 days. The effects of the mercury source on the exchangeable portion of Hg in the soils were most obvious in samples without added vermicompost. Nevertheless, differences between mobile inorganic and organic forms of Hg were lower in the case of Fluvisol compared to other soils. Moreover, in this soil, the content of available mercury was higher than from others. Conclusions In general, the smallest differences between mobile inorganic and organic forms of Hg were observed in the case of soil with the highest content of organic matter. Also higher doses of vermicomposts decreased the amount of mercury mobile phase available. Additionally, the largest positive influence of vermicompost dose on Hg mobility was measured in soils combined with vermicompost with the highest portion of humic acids.

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Section: Comparisons Of Inorganic and Organic Mercury Sources And Indmentioning

confidence: 95%

Mobility of mercury in soil as affected by soil physicochemical properties

et al. 2016

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“…[52] In addition, sediment samples should be covered with thin layer of overlaying water from the site and sealed with no headspace. [51] Soil samples are usually packed in PE bags in cooler containing ice, and transported to laboratory, [20,53,54] dried, homogenized, sieved and stored in high density PE containers at 4 °C. [54] The drying conditions also have great influence on the Hg contents of soil samples and freeze-drying is highly recommended than air and oven drying.…”

Section: Speciation Analysis Of Hgmentioning

confidence: 99%

Methods and recent advances in speciation analysis of mercury chemical species in environmental samples: a review

Amde

Yin

Zhang

et al. 2016

Chemical Speciation & Bioavailability

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Mercury (Hg) and its compounds are much concerned for their high toxicity and wide presence in the environment. Since the toxicity of Hg is species dependent, various methods have been developed for the speciation analysis of Hg. This review focus on the determination and speciation analysis of Hg chemical species in water, sediment, and soil samples. Recent developments on sample pre-treatment and extraction/pre-concentration, separation, and quantification of Hg chemical species, and associated analytical challenges have been reviewed and briefly discussed based on recent reports.

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“…Natural or artificial sources of heavy metals can enter the wetland ecosystem from the ground surface, underground runoff, and atmospheric dust, and can be enriched in the body of fish [9][10][11]. When hydrological conditions and physicochemical properties in wetland soil, sediment, and water are changed, some of the heavy metal and mercury that has been fixed will be released again, resulting in secondary pollution and deterioration of the ecological environment [12][13][14]. Wetland soil is an important interface between aquatic and terrestrial ecosystems in which mercury often accumulates and transspecies [15][16].…”

mentioning

confidence: 99%

Concentrations and Speciation of Mercury in Soil Affected by Bird Droppings

Yao¹,

Fang²,

Wu³

et al. 2019

Pol. J. Environ. Stud.

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Mercury (Hg) is a type of nervous poison element that exists in the atmosphere, water, and soil. It can threaten human health and the greater ecosystem either directly or indirectly [1-3]. For example, when consumed through food, high concentrations of mercury and methyl-mercury (MeHg) may affect humans' and animals' nervous and reproductive systems. In addition, Hg and MeHg can change birds' sexual orientation by disrupting the release of gonadal hormones, and bring into play adverse effects such as endocrine disruption and neurodevelopmental impairment in carnivores

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Effects of Soil Properties and Flooding on the Mobility and Transformation of Mercury in a Temperate Riparian Wetland

Cited by 8 publications

References 36 publications

Mobility of mercury in soil as affected by soil physicochemical properties

Mobility of mercury in soil as affected by soil physicochemical properties

Methods and recent advances in speciation analysis of mercury chemical species in environmental samples: a review

Concentrations and Speciation of Mercury in Soil Affected by Bird Droppings

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