Mercury in soils and plants in an abandoned cinnabar mining area (SW Spain)

García-Sánchez, Antonio-Javier; Murciego, Ascensión Murciego; Álvarez‐Ayuso, E.; Santa‐Regina, Ignacio; Rodríguez-González, M.A.

doi:10.1016/j.jhazmat.2009.03.009

Cited by 59 publications

(34 citation statements)

References 49 publications

(56 reference statements)

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“…The early stage of development at which plants were sampled and the ecological characteristics of the species support concern about larger contamination of plants at their complete development stage and potential transfer through the food chain. This hypothesis are supported by the findings of García-Sánchez et al (2009) who observed a similar mercury transfer from soil to plants near the mining site of Usagra (Spain), even if the contamination levels of the site are incomparably higher than those measured in this work. Fig.…”

Section: Resultssupporting

confidence: 91%

Effects of Long Term Hg Contamination on Soil Mercury Speciation and Soil Biological Activities

Piani

Acquavita

Catalano

et al. 2013

E3S Web of Conferences

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Abstract. The suspended matter discharged by the Isonzo river has carried over, for centuries, heavily contaminated mine spoils from the Idrija mercury mining site (Slovenija). A frequently flooded area at the confluence of the Isonzo and Torre rivers was chosen for a preliminary study on the effects of long term mercury pollution on soil biological activities, Hg speciation and plant bioavailability. Soil mercury contamination reached up to about 80 µg g -1 near the banks of Isonzo river and decreased down to about 0.2 µg g -1 near the Torre river, with the predominance of mercuric sulfide and elemental mercury. Soil microbial biomass was not adversely affected by Hg contamination as most soil biological activities, with the exception of arylsulphatase and acid phosphatase, which showed significant negative trends against total mercury and its fractions. Two plant genres (Arum spp. and Rubus spp.) were collected in four different places: Rubus spp. showed the largest uptake capacity of mercury (about 1 µg g -1 ). Long term mercury contamination does not seem to constitute a stressing factor for soil biological activities but remains nevertheless a concern for its transfer through the food chain.

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Section: Resultssupporting

confidence: 91%

Effects of Long Term Hg Contamination on Soil Mercury Speciation and Soil Biological Activities

Piani

Acquavita

Catalano

et al. 2013

E3S Web of Conferences

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“…Several plants have the property of being hyperaccumulators of trace elements without suffer phytotoxicity (Bech et al, 1997;Clemente et al, 2005;García-Sánchez et al, 2009;Gisbert et al, 2006;Martínez et al, 2006;Murciego et al, 2007). Certain crops can also accumulate high amounts of metals, which can lead to a health risk to human and animals (Gupta and Gupta, 1998;Kabata-Pendias, 2001).…”

Section: Introductionmentioning

confidence: 99%

Trace elements absorption by citrus in a heavily polluted mining site

Romero¹,

González²,

Galán³

2012

Journal of Geochemical Exploration

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“…For total Hg analysis, soil samples were digested in a water bath (958C) using a fresh mixture of concentrated HCl and HNO 3 (3:1, v/v). Elemental Hg in the soil samples was evaluated according to the method of García-Sánchez et al [17]. Bioavailable Hg in soil was determined according to the method of Jing et al [7], which uses dilute hydrochloric acid to extract Hg.…”

Section: Methodsmentioning

confidence: 99%

“…Although some studies have been conducted to investigate the distribution of Hg in wild plants growing in Hg mining districts [17,18] [19][20][21]. However, the biogeochemical cycle of Hg in the soil-plant-air system remains poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Mercury distribution in the soil–plant–air system at the Wanshan mercury mining district in Guizhou, Southwest China

Wang

Feng

Anderson

et al. 2011

Enviro Toxic and Chemistry

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The level of mercury bioaccumulation in wild plants; the distribution of bioavailable Hg, elemental Hg, and total Hg in soil; and the concentration of total gaseous Hg (TGM) in ambient air was studied at three different mining sites (SiKeng [SK], WuKeng [WK], and GouXi [GX]) in the Wanshan mercury mining district of China. Results of the present study showed that the distribution of soil total Hg, elemental Hg, bioavailable Hg, and TGM varies across the three mining sites. Higher soil total Hg (29.4-1,972.3 mg/kg) and elemental Hg (19.03-443.8 mg/kg) concentrations were recorded for plots SK and WK than for plot GX. Bioavailable Hg was lower at plot SK and GX (SK, 3-12 ng/g; GX, 9-14 ng/g) than at plot WK (11-1,063 ng/g), although the TGM concentration in the ambient air was significantly higher for plot GX (52,723 ng/m(3) ) relative to WK (106 ng/m(3) ) and SK (43 ng/m(3)). Mercury in sampled herbage was elevated and ranged from 0.8 to 4.75 mg/kg (SK), from 2.17 to 34.38 mg/kg (WK), and from 47.45 to 136.5 mg/kg (GX). Many of the sampled plants are used as fodder or for medicinal purposes. High shoot Hg concentrations may therefore pose an unacceptable human health risk. Statistical analysis of the recorded data showed that the Hg concentration in plant shoots was positively correlated with TGM and that the Hg concentration in roots was positively correlated with the bioavailable Hg concentration in the soil. The bioaccumulation factor (BAF) in the present study was defined with reference to the concentration of bioavailable Hg in the soil (Hg([root]) /Hg([bioavail])). Three plant species, Macleaya cordata L., Achillea millefolium L., and Pteris vittata L., showed enhanced accumulation of Hg and therefore may have potential for use in the phytoremediation of soils of the Wanshan mining area.

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Mercury in soils and plants in an abandoned cinnabar mining area (SW Spain)

Cited by 59 publications

References 49 publications

Effects of Long Term Hg Contamination on Soil Mercury Speciation and Soil Biological Activities

Effects of Long Term Hg Contamination on Soil Mercury Speciation and Soil Biological Activities

Trace elements absorption by citrus in a heavily polluted mining site

Mercury distribution in the soil–plant–air system at the Wanshan mercury mining district in Guizhou, Southwest China

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