Comprehensive analysis of heavy metal soil contamination in mining Environments: Impacts, monitoring Techniques, and remediation strategies

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(6), P. 105777 - 105777

Published: April 5, 2024

Soil contamination by lead, zinc, iron, manganese, and copper is a widespread environmental issue associated with the mining industry. Primary sources include activities, production processing operations, waste disposal management practices, atmospheric sediments. degradation, water pollution impacting aquatic ecosystems, plant absorption leading to agricultural product contamination, health risks exposure copper, along effects on fauna biodiversity, constitute primary impacts of contamination. In this study, diverse sampling analysis methods, geographic information systems, remote sensing techniques are investigated for monitoring assessing soil these metals. modification techniques, phytoremediation, other strategies reduction considered among most crucial, alongside protection risk strategies. Finally, article explores innovative methods solutions mineral remediation, application green chemistry sustainable practices in industry, utilization artificial intelligence controlling heavy metal ion pollution.

Language: Английский

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Polyethylene microplastics alter soil microbial community assembly and ecosystem multifunctionality

Environment International, Journal Year: 2023, Volume and Issue: 183, P. 108360 - 108360

Published: Nov. 30, 2023

Although pervasive microplastics (MPs) pollution in terrestrial ecosystems invites increasing concern, impact of MPs on soil microbial community assembly, and ecosystem functions multifunctionality received relatively little attention. Here, we manipulated a mesocosm experiment to investigate how polyethylene (PE MPs; 0, 1%, 5%, w/w) influence plant production, quality, diversity enzymology carbon (C), nitrogen (N) phosphorus (P) cycling, maize–soil continuum. Results showed that PE exerted negligible effect biomass (dry weight). The 5% caused declines the availability water, C P, whereas enhanced pH storage. activity C-cycling enzymes (α/β-1, 4-glucosidase, β-D-cellobiohydrolase) was promoted by 1% MPs, while β-1, 4-glucosidase inhibited MPs. reduced N-cycling (protease urease), increased P-cycling enzyme (alkaline phosphatase). shifted composition, number specialist species, stability networks resistance. altered with concentration decreasing dispersal limitation proportion (from 13.66 9.96%). Overall, improved concentration, α/β-1, urease, protease, ammonium-N content were most important predictors multifunctionality. These results underscore can alter assembly multifunctionality, thus development implement scalable solutions controlling become increasingly imperative sustainable agricultural production.

Language: Английский

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Interaction of microplastics with heavy metals in soil: Mechanisms, influencing factors and biological effects

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170281 - 170281

Published: Jan. 24, 2024

Language: Английский

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Meta-analysis of impacts of microplastics on plant heavy metal(loid) accumulation

Environmental Pollution, Journal Year: 2024, Volume and Issue: 348, P. 123787 - 123787

Published: March 26, 2024

Language: Английский

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Microplastic pollution promotes soil respiration: A global‐scale meta‐analysis

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(7)

Published: July 1, 2024

Abstract Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences respiration. Here, we report on a meta‐analysis determine the effects of microbiome CO 2 emission. We found that significantly increased contents organic C (SOC) (21%) dissolved (DOC) (12%), activity fluorescein diacetate hydrolase (FDAse) (10%), microbial biomass (17%), but led decrease in diversity (3%). In particular, increases components further promote emission (25%) from soil, with much higher effect MPs these emissions than biomass. The could be attributed opposite vs. diversity, as accumulation recruited some functionally important bacteria provided additional substrates for specific heterotrophic microorganisms, while inhibiting growth autotrophic taxa (e.g., Chloroflexi , Cyanobacteria ). This study reveals can increase by causing shifts microbiome. These results underscore potential importance plastic terrestrial fluxes, thus climate feedbacks.

Language: Английский

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Competitive adsorption behaviors and mechanisms of Cd, Ni, and Cu by biochar when coexisting with microplastics under single, binary, and ternary systems

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 913, P. 169524 - 169524

Published: Dec. 21, 2023

Language: Английский

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Microplastics alter cadmium accumulation in different soil-plant systems: Revealing the crucial roles of soil bacteria and metabolism

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 474, P. 134768 - 134768

Published: May 29, 2024

Language: Английский

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Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities

Land Degradation and Development, Journal Year: 2024, Volume and Issue: 35(15), P. 4379 - 4405

Published: July 22, 2024

Abstract Microplastics (MPs) as emerging contaminants have a global occurrence, including both terrestrial and marine ecosystems. Soil enzymes contribute to maintaining ecosystem multifunctionality, for example, nutrient cycling, organic material decomposition, carbon climate regulation. Our present review highlights the impacts of MPs on soil enzyme activities, influencing factors, underlying mechanisms. Increasing findings confirm that can change activities range involved in biogeochemical cycling C N. However, current results are highly controversial. The effects vary from significant nonsignificant dependent polymer type, biodegradability, dosage, size, shape, aging degree MPs, exposure conditions. Compared traditional biodegradable generally show more pronounced effects. via different pathways. On one hand, directly structure, leading alterations activity. other create unique habitats, provide sources specific functional microbes producing enzymes, release plastic additives pollutants disturbing production these enzymes. Furthermore, alter physicochemical biological properties, availability substrates, plants fauna, regulating their functions. In conclusion, regulate pose profound impact multifunctionality.

Language: Английский

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Effects of microplastics on microbial community structure and wheatgrass traits in Pb-contaminated riparian sediments under flood-drainage-planting conditions

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134283 - 134283

Published: April 11, 2024

Language: Английский

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Behaviour, ecological impacts of microplastics and cadmium on soil systems: A systematic review

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 35, P. 103637 - 103637

Published: April 18, 2024

Owing to their low cost, high plasticity, and corrosion resistance, plastic products are widely used across various industries. However, these can break down into microplastics (MPs) through several processes, including natural weathering, mechanical wear tear, industrial activities, such as fine powder production, other human-induced processes. MPs contaminate the environment pose a significant threat human health safety. Additionally, be horizontally vertically distributed within soil environment. interact with cadmium (Cd) in Cd-contaminated soils, thereby forming co-exposed stress risks. Considering widespread distribution of Cd soil, this article reviews interactions ecological effects combined literature visualization analysis. The systematic review shows that MP–Cd pollution significantly alter physico-chemical properties thus influencing individual contaminants (Cd or MPs) modifying microbial community. migration contribute oxidative on animals plants, potential implications for aboveground food chain. This paper aims identify future research directions priorities addressing provide scientific guidance remediation management MP-Cd joint exposure site environments.

Language: Английский

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