Risk assessment of available and total heavy metals contents in various land use in calcareous soils

Jalali, Mohsen; Moradi, Fahimeh; Jalali, Mahdi; Wang, Jianxu

doi:10.1007/s12665-023-10949-5

Cited by 3 publications

(2 citation statements)

References 80 publications

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“…n is the number of different heavy metal species at the sampling site. T i r represents the heavy metal toxicity response value, which was as follows in descending order: Hg (40), Cd (30), As (10), Cr (5), Ni (5), Pb (5), Cu (2), and Zn (1) [52]. The classifications of E i r and I RI are presented in Table 1.…”

Section: Potential Ecological Risksmentioning

confidence: 99%

“…Among them, anthropogenic inputs and natural sources are significant sources of soil heavy metals [9]. The geological input of soil heavy metals is one of the weathering products from the bedrock in the soil formation process [10]. For example, the distribution area of black shale in southwest China is abundant in metal sulfide minerals, which are easily oxidized and weathered upon exposure to the ground, resulting in elevated levels of heavy metals in the surrounding area [9,11].…”

Section: Introductionmentioning

confidence: 99%

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Influencing Factors, Risk Assessment, and Source Identification of Heavy Metals in Purple Soil in the Eastern Region of Guang’an City, Sichuan Province, China

Shao,

Chen,

et al. 2024

Minerals

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Soil heavy metal contamination poses a significant threat to both environmental health and ecological safety. To investigate the influencing factors, ecological hazards, and sources analysis of heavy metals in purple soil, 27 sets of soil samples were collected from varying genetic horizons within Guang’an City, and the contents of As, Cd, Cu, Cr, Hg, Ni, Pb, and Zn were analyzed. The results indicated higher concentrations of heavy metals in soil A horizon, compared to that of C horizon. The relevance analysis indicated that the soil’s heavy metals were strongly correlated with the soil’s physicochemical properties. The enrichment factor, pollution load index, and potential risk index highlighted slightly to severely polluted levels of soil Cd and Hg, which significantly contribute to the ecological hazards posed by soil heavy metals. The potential source of heavy metals analyzed using the APCS-MLR model identified both anthropogenic inputs and natural sources as primary contributors to heavy metal presence in soils. The Cu, Cr, Ni, Pb, and Zn contents in the samples from different genetic horizons were chiefly influenced by natural sources, such as soil matrix erosion and weathering, while the concentrations of Cd and Hg were largely affected by anthropogenic activities, specifically coal combustion and agriculture. Conversely, the As content was found to be influenced by a combination of both factors. Anthropogenic activities greatly impacted soil heavy metals at various depths within the study area, thereby underscoring the importance of monitoring these heavy metals. The findings gained from this research can give a scientific basis for the potential utilization of purple soil.

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Section: Potential Ecological Risksmentioning

confidence: 99%