Soil organic matter prevails over heavy metal pollution and vegetation as a factor shaping soil microbial communities at historical Zn–Pb mining sites

Stefanowicz, Anna M.; Kapusta, Paweł; Zubek, Szymon; Stanek, Małgorzata; Woch, Marcin W.

doi:10.1016/j.chemosphere.2019.124922

Cited by 105 publications

(30 citation statements)

References 67 publications

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“…As shown in Table 2, the concentration of Cd was higher in Gejiu, Hezhang, Mianxian, Fengxian, Zhuzhou, and Huludao, with concentrations of 63.50, 43.00, 39.74, 33.79, 108.18, and 60.94 mg/kg, respectively, while the concentration in Tongguan was low, with a value of 0.26 mg/kg. The concentration of Cd is high in the soil from the smelting areas, mainly because Cd is often associated with Pb/Zn ore. During Pb/Zn smelting, Cd was released into the surrounding environment through waste gas, waste water and other forms [51,52]. The concentrations of Pb in Gejiu, Hezhang, Baiyin b , Zhuzhou, and Shaoguan were 3347.50, 9000.00, 3510.00, 7621.86, and 1185.66 mg/kg, respectively, which were higher than those in other smelting areas.…”

Section: Content Of Heavy Metals In Soilmentioning

confidence: 98%

Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China

Zang

et al. 2020

IJERPH

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Nonferrous smelting is an important source of heavy metals in soil, which causes different degrees of soil pollution, especially in lead–zinc (Pb/Zn) smelting areas. Based on the Pb/Zn environmental release during the Pb/Zn mineral smelting processes in 31 Chinese provinces from the period 2000 to 2015, the study analyzed the spatiotemporal variations in Pb/Zn environmental release at the national level and then evaluated the degree of soil pollution and potential ecological risk based on the heavy metal content in soil from Pb/Zn smelting areas. The results showed that from the period 2000 to 2015, the Pb release had a discrete trend, transferring from the middle east to the west, and the provinces with higher Pb releases were Henan Province, Yunnan Province, and Hunan Province. However, the Zn release showed a tendency towards spatial aggregation, and the release center of this heavy metal presented a shifting trend from south to north; additionally, the release of Zn was highest in Hunan Province. The pollution index analyses indicated that Cd, Pb, Cu, and Zn in Zhuzhou and Huludao all reached extremely polluted levels, while Tongguan was at a safe level. In Gejiu, Mianxian, Fengxian, Zhuzhou, Huludao, and Shaoguan, there were very high potential ecological risks, with Cd having the highest potential ecological risk in most smelting areas, followed by Pb.

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Section: Content Of Heavy Metals In Soilmentioning

confidence: 98%

Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China

Zang

et al. 2020

IJERPH

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“…The mineralogical composition of soils was dominated by illite/sericite, kaolinite, quartz, and jarosite [39]. The most important factor affecting trace metals availability is soil pH [1], which usually increases the mobility and bioavailability of the metal with lower pH values, with the content of organic matter and clay minerals [10,40]. On the other hand, soils rich in organic matter can bind metals efficiently in acidic conditions, however, bonding capacity depends on the metal [10].…”

Section: Soil Physicochemical Characterizationmentioning

confidence: 99%

“…The most important factor affecting trace metals availability is soil pH [1], which usually increases the mobility and bioavailability of the metal with lower pH values, with the content of organic matter and clay minerals [10,40]. On the other hand, soils rich in organic matter can bind metals efficiently in acidic conditions, however, bonding capacity depends on the metal [10]. The samples had fine granulometry due to the major presence of sandy fraction; the fine soil particles can be easily transported by wind and water erosion to the nearby environment [41].…”

Section: Soil Physicochemical Characterizationmentioning

confidence: 99%

“…Likewise, the abandoned mines without effective shut-down procedures are causing a nuisance in the mining districts due to metal transfer to the environment [7], being one principal reason for the emergence of conflicts in Peru [8]. Metals are persistent in the environment and, being nonbiodegradable [9], cause serious harm bioaccumulating in flora and fauna [6,10]. The installations, effluents, emissions, remains, or deposits of residues from abandoned or inactive mines constituting a permanent and potential risk for health, the surrounding ecosystem, and property are defined as mining environmental liabilities (MELs) [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Accumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants Growing in Soils Contaminated by Mining Environmental Liabilities in the Peruvian Andes

Cruzado-Tafur

Bierła

Torró

et al. 2021

Plants

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The capability of native plant species grown in polluted post-mining soils to accumulate metals was evaluated in view of their possible suitability for phytoremediation. The study areas included two environmental liabilities in the Cajamarca region in the Peruvian Andes. The content of As, Ag, Cd, Cu, Pb, and Zn was determined in individual plant organs and correlated with soil characteristics. The degree of the pollution depended on the metal with results ranging from uncontaminated (Cd) to moderately (Zn), strongly (As, Cu), and extremely contaminated (Pb, Ag) soils. The metals were mainly present in the fractions with limited metal mobility. The bioaccumulation of the metals in plants as well the translocation into overground organs was determined. Out of the 21 plants evaluated, Pernettya prostrata and Gaultheria glomerate were suitable for Zn, and Gaultheria glomerata and Festuca sp. for Cd, phytostabilization. The native species applicable for Cd phytoremediation were Ageratina glechonophylla, Bejaria sp., whereas Pernettya prostrata Achyrocline alata,Ageratina fastigiate, Baccharis alnifolia, Calceolaria tetragona, Arenaria digyna, Hypericum laricifolium, Brachyotum radula, and Nicotiana thyrsiflora were suitable for both Cd and Zn. None of the studied plants appeared to be suitable for phytoremediation of Pb, Cu, As and Ag.

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“…In addition to complexing with SOM, pH is an important factor that influences Cd (Cruz-Paredes et al, 2017). Compared with Cd, Pb has a lower migration capacity in the soil column, which followed the SOM distribution, indicating that Pb was substantially influenced by the microbial community and organic matter reduced the toxic effect of heavy metals on the microbial activity (Stefanowicz et al, 2020). Thus, SOM is partial to spatially and temporally affect the mobilisation of heavy metals.…”

Section: Heavy Metals and Organic Matter At Different Depths In Soil mentioning

confidence: 99%

Stabilization of Cd and Pb in the contaminated soils by applying modified fly ash

et al. 2021

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This study investigated the stabilization of heavy metals by adding modified fly ash (FA) to contaminated soils, and two similar materials, NaOH-zeolite (ZE) and natural zeolite (ZO) were introduced into the soils for comparison. Column leaching tests were conducted to analyze the difference of stabilization effects between the three materials. Leaching columns were run for 6 months, and a considerable stabilization of heavy metals in the soils was observed. The concentration of cadmium (Cd) and lead (Pb) in the amended soil substantially decreased (p < 0.05). The results indicated that after 11 weeks of column leaching, Cd and Pb concentrations in the soil leachate decreased to below the detection limit due to amendment stabilization. Among the three amendments, the ZE amendment showed the optimum capacity for heavy metal immobilisation in the soils. In addition, after 6 months of leaching, Pb and Cd concentrations in the soils with the three different amendments decreased to various degrees. The amendments of modified FA and ZE were better than those of natural ZO. Coal FA, after modification, is a useful amendment for the remediation of heavy metals in the contaminated soil.

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Soil organic matter prevails over heavy metal pollution and vegetation as a factor shaping soil microbial communities at historical Zn–Pb mining sites

Cited by 105 publications

References 67 publications

Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China

Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China

Accumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants Growing in Soils Contaminated by Mining Environmental Liabilities in the Peruvian Andes

Stabilization of Cd and Pb in the contaminated soils by applying modified fly ash

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