Heavy Metal Contents and Assessment of Soil Contamination in Different Land-Use Types in the Qaidam Basin

Nuralykyzy, Bayan; Wang, Pan; Deng, Xiaoqian; An, Shaoshan; Huang, Yanqun

doi:10.3390/su132112020

Cited by 26 publications

(15 citation statements)

References 50 publications

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“…The bioavailability of HMs could be increased with the relatively high soil TP and TN concentrations (Xiao et al, 2016). Considering the roadside soil TP and TN usually comes from fertilizers and traffic emissions (Singh et al, 2018), the correlations in terms of TN and TP demonstrated the influence of anthropogenic activities on HM concentrations in soils (Martin & Kaplan, 1998; Nuralykyzy et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

Wang

et al. 2023

Enviro Toxic and Chemistry

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Roadside soils are regarded as a reservoir for heavy metal pollution, which potentially leads to ecosystem deterioration as well as serious hazard to human health. A comprehensive investigation was conducted for the levels, relationship with soil properties, and potential sources of heavy metals (Hg, Cu, Zn, Pb, Cd, and Cr) in roadside soils in six cities (Changzhi, Jincheng, Yuncheng, Linfen, Xinzhou, Datong) of Shanxi Province; and the corresponding ecological risk and human health risk associated with the concentrations of heavy metals were addressed. Heavy metal concentrations of 112 roadside soil samples in the surveyed cities were, in decreasing order, Zn, Cu, Cr, Pb, Cd, and Hg, which were higher than corresponding background values. The highest concentrations were in Changzhi. The results of Pearson correlation analysis demonstrated that positive correlations in varying degrees existed between soil properties such as electrical conductivity, total nitrogen, total phosphorus, and total organic carbon with specific heavy metals and that negative correlations were observed for clay and electrical conductivity. Anthropogenic sources related to traffic emissions and industrialization were the main sources of heavy metals in roadside soils according to principal component analysis. The ecological risk assessments were achieved by pollution index and potential risk index, indicating that contamination with Hg was the most serious, which posed the highest risk to the ecosystems in the surveyed cities; and the ecological risk in Changzhi ranked at the top compared with other cities. For the human health risk assessment, the results demonstrated that the noncarcinogenic and carcinogenic risks were in the acceptable range in the surveyed cities. However, there was a higher health risk from heavy metal exposure for children than adults, and the main exposure pathway was soil ingestion. In addition, Changzhi was the city with the highest noncarcinogenic and carcinogenic risks, and the main human health risks were posed by Cr contamination in roadside soil, which was different from the results of ecological risks. Both results of ecological and health risk assessment demonstrated that the higher risk exhibited in southern and southeastern cities than northern cities in Shanxi Province.

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Section: Resultsmentioning

confidence: 99%

The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

Wang

et al. 2023

Enviro Toxic and Chemistry

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“…The soil is a non-renewable natural resource that provides various critical ecosystem functions, including supporting the growth of crops and the distribution of water and gases in the environment. It also serves as a buffer in the control of organic and inorganic substances [4,5] . Globally, heavy metal pollution of soil has attracted growing attention [6] .…”

Section: Introductionmentioning

confidence: 99%

Utilization of Biochar Alone and in Combination with Compost for Removal of Potentially Toxic Metals Accumulated in Soils Associated with Land-use Patterns

Hanyabui¹,

Phares²,

Botchway³

et al. 2023

J Mod Agric Biotechnol

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Background: Potentially toxic metals in soils are a threat to food security and human health because it enters the food chain through crop uptake. Hence, it is critical to understand the levels of potentially toxic metals in soils due to agricultural land use patterns and the approach to remove them from the soil.Objective: This review discussed the effect of different land-use patterns on heavy metal accumulation and their removal using biochar.Methods: A desktop review employing preferred reporting items for systematic review and metaanalysis was used to analyse information from peer-reviewed papers including journal articles, books, thesis, and reports.Results: It was shown that potentially toxic metals mainly found in the soil include arsenic (As), copper (Cu), cadmium (Cd), zinc (Zn), chromium (Cr), cobalt (Co), nickel (Ni), antimony (Sb), mercury, thorium (Th), lead, silicon (Si), and selenium (Se). The sources of these potentially toxic metals accumulation in soils were the application of organic and inorganic fertilizers, irrigation, use of pesticides and weedicides, and atmospheric deposition. However, different land-use patterns (greenhouse field, vegetable field soils, forest field, and maize field soil) had a significant accumulation of heavy metals (Cr, Ni, Cu, As, Cd, and Zn) due to increasing crop yield after the use of fertilizers and pesticides. Biochar was found to be effective in the removal of 18 to 40% of these potentially toxic metals from the soil. The mechanisms of removal included precipitation, physical sorption, complexation, ion exchange, and electrostatic interaction. Conclusion:Biochar applied alone or with compost is highly stable to remove heavy metals accumulated in soils due to land use patterns.

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“…Various elements, including the type of plastic, species of heavy metal, properties of soil, and the environment, might affect the unique interactions between heavy metals and plastic-contaminated soil [4], [13]. Heavy metals including Cadmium (Cd), Copper (Cu), Lead (Pb) and Zinc (Zn) are most commonly found in the contaminated soil [1], [2], [16]. This type of pollution persisting for a long time in the soil environment, is medically dangerous, and is widely spread.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Heavy Metals with Plastic Contaminated Soil

Srinidhi,

Sangeetha,

Krishna

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Microplastic (MP) contamination is a threat to soil and groundwater system. Disintegration of used plastic products under exposure to solar radiations, application of sewage sludge to the soil, plastic mulching in agricultural activities leads to the formation of microplastics in significant amounts in soil. Hence there is a need from the geo environment engineering perspective on microplastic contamination in soils. Landfills and industrial areas have microplastic pollution in abundance. The presence of microplastic may alter the behaviour of liner material and surface soil in terms of heavy metal retention capacity, shrinkage, permeability and various other properties. In the present study, the soil is artificially polluted with shredded polypropylene (Pp) fragments from single use facial mask which is extensively being used in post COVID-19 situation. Heavy metals such as Lead, Nickel, Copper and Zinc at different concentrations similar to an industrially polluted soil is applied to the plastic contaminated (Pc) and normal soil. The filtrates from the test batches are studied for Total Dissolved Solids (TDS) and concentration of heavy metals using Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). The obtained results concluded that plastic pollution significantly varied leached out heavy metals concentration to a maximum of 4.9 times that of normal soil. The TDS of the filtrate collected from plastic polluted soil varied by 31.29%.

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Heavy Metal Contents and Assessment of Soil Contamination in Different Land-Use Types in the Qaidam Basin

Cited by 26 publications

References 50 publications

The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

Utilization of Biochar Alone and in Combination with Compost for Removal of Potentially Toxic Metals Accumulated in Soils Associated with Land-use Patterns

Interaction of Heavy Metals with Plastic Contaminated Soil

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