Determination of soil contamination sources in mining area using Zn/Cd ratios with mobile Cd

Kim, Duk-Min; Kwon, Oh-Hun; Oh, Youn Soo; Lee, Jin-Soo

doi:10.1007/s10653-021-00820-6

Cited by 11 publications

(3 citation statements)

References 52 publications

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“…Factor 6 mainly contributes to Cd and Zn elements, with contribution rates of 52.8 and 59.3%, respectively (Figure 5F). It is generally believed that fertilizers, plastic films, atmospheric deposition, and sludge irrigation lead to the accumulation of Cd in soil (Younger et al, 2002;Kim et al, 2021). When it comes to agricultural activities, the long-term and large-scale use of heat stabilizers and Cd-containing fertilizers also lead to Cd enrichment in soil (Kim et al, 2021).…”

Section: Pmf Analysismentioning

confidence: 99%

“…It is generally believed that fertilizers, plastic films, atmospheric deposition, and sludge irrigation lead to the accumulation of Cd in soil (Younger et al, 2002;Kim et al, 2021). When it comes to agricultural activities, the long-term and large-scale use of heat stabilizers and Cd-containing fertilizers also lead to Cd enrichment in soil (Kim et al, 2021). The application of organic fertilizers, such as animal manure, is also an important source of Cd and Zn.…”

Section: Pmf Analysismentioning

confidence: 99%

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Spatial Distribution and Source Apportionment of Heavy Metals in the Topsoil of Weifang City, East China

Ren

et al. 2022

Front. Environ. Sci.

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The distribution of heavy metals in topsoil can have a significant impact on human health. A total of 1, 556 samples were collected from the topsoil of Weifang, China. Various indices, including the pollution index (PI), the Nemerow integrated pollution index (PN), and the potential ecological risk index (RI), were used to analyze the heavy metal pollution levels. The sources of heavy metals were analyzed using the positive matrix factorization (PMF) model. The results are as follows: (1) the ecological risk level of Cu, Pb, Zn, Ni, Cr, and As in the study area is relatively safe, but the ecological risk level of Cd and Hg is relatively high, leading to an increase in the ecological risk level of heavy metals in the study area and (2) the PMF results show that there are six main sources of the eight heavy metals. Cr and Ni come from soil parent material and nonferrous metal industrial activities; As is closely related to fossil fuel (coal)-related industrial activities; Cu originated from diesel fuel-related transportation and agricultural machinery activities; Pb is derived from gasoline transportation activities; Hg is closely related to the application of pesticides in agricultural production; Cd and Zn originated from organic fertilizers used in agricultural activities.

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Section: Pmf Analysismentioning

confidence: 99%

Section: Pmf Analysismentioning

confidence: 99%

Spatial Distribution and Source Apportionment of Heavy Metals in the Topsoil of Weifang City, East China

Ren

et al. 2022

Front. Environ. Sci.

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“…The distribution of non-ferrous metals in south China is intensive, and a lot of soil is destroyed by mining or polluted by heavy metals, which has caused serious damage to the soil ecosystem [1,2]. Soil contamination in mining areas can also be transported by surface runoff and biogeochemistry [3][4][5], endangering the environmental quality of adjacent areas, while contaminated agricultural products can endanger human health through the food chain [6,7]. Therefore, the reclamation of mine land to restore and reuse degraded land has become one of the hot issues in environmental science and soil science [1].…”

Section: Introductionmentioning

confidence: 99%

Heavy metal content and microbial characteristics of soil plant system in Dabaoshan mining area, Guangdong Province

Qin¹,

Jiang²,

Yan³

et al. 2023

PLoS ONE

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The disordered mining of Dabaoshan lead-zinc mineral resources in Shaoguan has brought serious harm to the regional ecological environment. In order to investigate the heavy metal pollution status and microbial characteristics of soil plant system in mining area, The distribution of heavy metals in the soil, the activity of soil microorganisms and the accumulation characteristics of heavy metals in the dominant plant Miscanthus floridulus were studied. The results indicated that metal element contents of Miscanthus floridulus in sequence were: Zn>Pb>Cu> Cd. This study demonstrated that the elemental content of the Miscanthus floridulus plant showed Zn>Pb>Cu>Cd, with Zn being the most significantly correlated with soil elements, followed by Pb. Compared with the control group, the Miscanthus floridulus-soil system possessed obviously different soil microbial features: intensiver in microbial basal respiration strength, and higher microbial eco-physiological parameters Cmic/Corg and qCO2, but lower in soil microbial biomass. The results showed the soil enzymatic activities decreased significantly with increase of contamination of heavy metals, especially dehydrogenase and urease activities. With the increase of the content of heavy metals in the mining area soil, the intensity of soil biochemical action in the mining area (Q1, Q2) soil decreased significantly, and the biochemical action showed a significant negative correlation with the content of heavy metals in the soil. Compared with the non mining area (Q8) soil, the intensity of soil ammonification, nitrification, N fixation and cellulose decomposition decreased by 43.2%~71.1%, 70.1%~92.1%, 58.7%~87.8% and 55.3%~79.8% respectively. The decrease of soil microbial activity weakened the circulation rate and energy flow of C and N nutrients in the soil of the mining area.

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Exploring the long-term impact of a cadmium pollution accident on microbial communities in river ecosystems

Wang,

et al. 2024

Biogeochemistry

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The large leakage accidents of heavy metals from industrial facilities pose a serious environmental problem; however, not enough studies have been conducted to assess the long-term ecological risk associated with such accidents. This study evaluated changes in the bacterial communities within river sediment and identified the key functional microorganisms responding to the 2012 cadmium contamination incident in the Long River, Guangxi Province, China. Results revealed that after a prolonged period of pollution accidents, cadmium pollution still had a discernible effect on the bacterial communities of the river sediment. In comparison to the control site (S1), the bacterial α-diversity in sediments from the accident area (S3) and its downstream (S5) showed a significant increase following the incident. In the control site, Burkholderiaceae was dominant, while in S3 and S5, Pedosphaeraceae, Nitrosomonadaceae, Nitrospiraceae and Geobacteraceae were significantly increased. Sulfur bacteria were found to be more responsive to this cadmium contamination than other bacteria. At site S3, the abundances of Sulfuricurvum, Sulfurifustis, Thioalkalispira, Desulfobacteraceae and Desulfarculaceae were hundreds of times higher than at site S1, indicating an intensification of sulfur cycling processes. The functional prediction implied that cadmium pollution may promote methane oxidation coupled with sulfate reduction reactions and altered the processes of nitrification and denitrification. Environmental factors influencing the microbial community included the levels of metals (cadmium, arsenic, iron) in sediment, as well as other sediment characteristics like temperature and electrical conductivity. These findings contribute to our understanding of the long-term ecological consequences of environmental pollution in river ecosystems. Graphical abstract

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Determination of soil contamination sources in mining area using Zn/Cd ratios with mobile Cd

Cited by 11 publications

References 52 publications

Spatial Distribution and Source Apportionment of Heavy Metals in the Topsoil of Weifang City, East China

Spatial Distribution and Source Apportionment of Heavy Metals in the Topsoil of Weifang City, East China

Heavy metal content and microbial characteristics of soil plant system in Dabaoshan mining area, Guangdong Province

Exploring the long-term impact of a cadmium pollution accident on microbial communities in river ecosystems

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