Sources, effects and present perspectives of heavy metals contamination: Soil, plants and human food chain

Heliyon, Год журнала: 2024, Номер 10(7), С. e28357 - e28357

Опубликована: Март 26, 2024

Heavy metal (HM) poisoning of agricultural soils poses a serious risk to plant life, human health, and the global food supply. When HM levels in get dangerous levels, it harms crop health yield. Chromium (Cr), arsenic (As), nickel (Ni), cadmium (Cd), lead (Pb), mercury (Hg), zinc (Zn), copper (Cu) are main heavy metals. The environment contains these metals varying degrees, such as soil, food, water, even air. These substances damage plants alter soil characteristics, which lowers Crop types, growing circumstances, elemental toxicity, developmental stage, physical chemical properties, presence bioavailability (HMs) solution some factors affecting amount toxicity crops. By interfering with normal structure function cellular components, HMs can impede various metabolic processes. Humans exposed numerous diseases by consuming affected products. Exposure certain harm kidneys, brain, intestines, lungs, liver, other organs body. This review assesses (1) contamination through different sources, like anthropogenic natural; (2) effect on microorganisms properties soil; (3) well production; (4) entering chain associated hazards health. Lastly, we identified research gaps suggested further study. If people want feel safe their surroundings, there needs be stringent regulation release into environment.

Язык: Английский

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Microbial Growth under Limiting Conditions-Future Perspectives

Microorganisms, Год журнала: 2023, Номер 11(7), С. 1641 - 1641

Опубликована: Июнь 23, 2023

Microorganisms rule the functioning of our planet and each one individual macroscopic living creature. Nevertheless, microbial activity growth status have always been challenging tasks to determine both in situ vivo. Microbial is generally related growth, rate a result availability nutrients under adequate or adverse conditions faced by cells changing environment. Most studies on microorganisms carried out optimum near-optimum conditions, but scarce information available about at slow-growing states (i.e., near-zero maintenance metabolism). This study aims better understand growth-limiting conditions. expected provide new perspectives functions relevance world. because (i) nature frequently face severe limitation, (ii) activate singular pathways (mostly genes remaining be functionally annotated), resulting broad range secondary metabolites, (iii) response slow-growth remains understood, including persistence strategies, gene expression, cell differentiation within clonal populations due complexity

Язык: Английский

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

Arabian Journal of Chemistry, Год журнала: 2024, Номер 17(6), С. 105777 - 105777

Опубликована: Апрель 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.

Язык: Английский

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Biochar modulating soil biological health: A review

The Science of The Total Environment, Год журнала: 2023, Номер 914, С. 169585 - 169585

Опубликована: Дек. 27, 2023

Biochar can be used for multifunctional applications including the improvement of soil health and carbon storage, remediation contaminated water resources, mitigation greenhouse gas emissions odorous compounds, feed supplementation to improve animal health. A healthy preserves microbial biodiversity that is effective in supressing plant pathogens pests, recycling nutrients growth, promoting positive symbiotic associations with roots, improving structure supply nutrients, ultimately enhancing productivity growth. As a amendment, biochar assures biological through different processes. First, supports habitats microorganisms due its porous nature by formation stable micro-aggregates. also serves as nutrient source. alters physical chemical properties, creating optimum conditions diversity. immobilize pollutants reduce their bioavailability would otherwise inhibit However, depending on pyrolysis settings feedstock comprised contaminants polycyclic aromatic hydrocarbons potentially toxic elements activity, thereby impacting

Язык: Английский

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Metal-tolerant and siderophore producing Pseudomonas fluorescence and Trichoderma spp. improved the growth, biochemical features and yield attributes of chickpea by lowering Cd uptake

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Март 18, 2023

Abstract Industrialization and human urbanization have led to an increase in heavy metal (HM) pollution which often cause negative/toxic effect on agricultural crops. The soil-HMs cannot be degraded biologically however, microbe-mediated detoxification of toxic HMs into lesser forms are reported. Considering the potentiality HMs-tolerant soil microbes detoxification, Pseudomonas fluorescence PGPR-7 Trichoderma sp. T-4 were recovered from HM-affected areas. Under both normal cadmium stress, ability microorganisms produce different plant hormones active enzymes was examined. Strains tolerated (Cd) up-to 1800 2000 µg mL −1 , respectively, produced various growth regulating substances (IAA, siderophore, ACC deaminase ammonia HCN) Cd-stressed condition. promoting detoxifying strains evaluated (either singly/combined) by applying them chickpea ( Cicer arietinum L.) plants endogenously contaminated with Cd levels (0–400 kg soils). higher concentration (400 soils) negatively influenced parameters which, improved following single/combined inoculation P . T-4. Both microbial increased Cd-treated chickpeas their combined (PGPR-7 + T-4) caused most positive effect. For instance, 25 Kg T4 treatment maximum germination percentage (10%), root dry biomass (71.4%) vigour index (33%), chl-a (38%), chl-b (41%) carotenoid content (52%). Furthermore, P. maximally decreased proline, MDA content, POD CAT activities 50%, 43% 62%, respectively application soils-treated chickpea. Additionally, lowered uptake Cd. example, Cd-uptake tissues 42 34% when - treated inoculated PGPR-7, co-inoculation T4) strains, respectively. Therefore, current observation, it is suggested that dual tolerant may potentially used reclamation metal-contaminated soils.

Язык: Английский

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Impacts of microplastics and urbanization on soil health: An urgent concern for sustainable development

Green Analytical Chemistry, Год журнала: 2024, Номер 8, С. 100095 - 100095

Опубликована: Янв. 12, 2024

This review offers a novel perspective by exploring the combined effects of microplastics (MPs) and urbanization on soil health, differing from conventional studies that focus solely individual factors. Integrating impact MPs provides holistic view, revealing significant implications for degradation. As research within gains traction, understanding complex interplay between urban becomes crucial. We have conducted comprehensive existing literature, examining origins microplastics, their movement through soil, detrimental health function, transmission food chains, consequent harm to organisms. aims summarize consequences assess influence vitality functionality, scrutinize potential ecological hazards due microplastics. By consolidating prior research, this contributes insights into land-use changes associated with urbanization, elucidates relationship concerning examines microplastic migration toxicology, proposes management strategies mitigate risks posed urbanization. The urgent need develop effective manage these pollutants stresses significance suggesting approaches such as reducing plastic usage, implementing sustainable industrial practices, employing efficient restoration methods.

Язык: Английский

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Soil amendments alter cadmium distribution and bacterial community structure in paddy soils

The Science of The Total Environment, Год журнала: 2024, Номер 924, С. 171399 - 171399

Опубликована: Март 6, 2024

Язык: Английский

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Biochar-based polarity reversal bipolar electrochemistry coupled with phytoextraction for rapid remediation of lead and zinc-contaminated soil

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159495 - 159495

Опубликована: Янв. 1, 2025

Язык: Английский

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Exploring the link between soil health and crop productivity

Ecotoxicology and Environmental Safety, Год журнала: 2025, Номер 289, С. 117703 - 117703

Опубликована: Янв. 1, 2025

Understanding the complex interactions of plants and soils in face global food security environmental degradation challenges is critical to future sustainable agriculture. This review discusses important link between soil health crop productivity by providing comprehensive assessment properties management methods. By examining physical, chemical, biological soil, it uncovers key limitations posed environment on growth. The highlights how texture, nutrient availability, moisture levels directly impact root growth, water uptake, use efficiencies, while also exploring diverse cropping systems enhance ecology biodiversity. utilizing state-of-the-art bioinformatics, we offer an in-depth exploration rhizosphere microbial communities, emphasizing functions phosphate-solubilizing nitrogen-fixing bacteria promoting vital cycles. potential using fertilizers increase resistance disease stress hold a major premise for sustainability In this regard, long-term impacts cultivation diversity, revealing intricate selection processes crops their partners shaping crop-soil-microbe interactions. terms management, practical strategies are proposed based testing, benefits organic farming conservation tillage health. Modern precision agricultural tools remote sensing technologies encouraged be refined effective management. At policy level, evaluate international guidelines aimed at fostering sustainability, suggesting new research pathways crop-soil dynamics offering approaches developing indicators challenges.

Язык: Английский

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Water-soluble carboxymethyl chitosan and rhamnolipids promote the remediation of Cd-contaminated soil by mediating the growth of Hylotelephium spectabile and regulating the rhizospheric ecological environment

Journal of Hazardous Materials, Год журнала: 2025, Номер 486, С. 137040 - 137040

Опубликована: Янв. 2, 2025

Язык: Английский

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