Environmental Impact of Metals, Metalloids, and Their Toxicity

Martínez‐Alcalá, Isabel; Bernal, María

doi:10.1002/9781119487210.ch21

Cited by 11 publications

(5 citation statements)

References 256 publications

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“…Martínez-Alcalá & Bernal (2020) also mentioned that Eh can be influenced by several factors such as flooding, the compaction of the soil, and the presence of anaerobic conditions [20]. Basically, the redox potential indicates the reduction-oxidation status, in which positive Eh values indicate oxidizing conditions and negative Eh values indicate reducing conditions.…”

Section: Eh Fluctuationsmentioning

confidence: 99%

Methane Emissions and Related Physicochemical Soil and Water Parameters in the Peat Swamp and Melaleuca Forests of U Minh Thuong National Park in Vietnam

Phương

Loc

Diem

2023

J. of Wat. & Envir. Tech.

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The study aimed to compare methane emissions and related physicochemical soil and water parameters between the Peat swamp forest and Melaleuca forest. The results show that both water and soil parameters at 8 examined sites in Melaleuca forest and Peat swamp forest fluctuated highly over the sampling intervals. The average hourly C-CH 4 emission rates in Melaleuca forest (26.58 mg/m 2 /h) was higher than that in Peat swamp forest (21.18 mg/m 2 /h). Generally, water level and redox potential were important factors regulating emissions of methane gases. The Eh values were all negative values, ranged between −196.5 ± 22.75 mV and −27.75 ± 15.37 mV, indicative of high electron activity and intense anaerobic. Peat swamp forest's soil had relatively higher organic matter, CEC, TN and TP values than Melaleuca forest's soil. The COD values fluctuated between 197.3 ± 51.78 mg/L and 396.8 ± 25.77 mg/L, indicative of organic pollution of surface water. It is suggested shorter time measurement (at least twice a day) of methane emission for more accurate evaluation.

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Section: Eh Fluctuationsmentioning

confidence: 99%

Methane Emissions and Related Physicochemical Soil and Water Parameters in the Peat Swamp and Melaleuca Forests of U Minh Thuong National Park in Vietnam

Phương

Loc

Diem

2023

J. of Wat. & Envir. Tech.

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“…Metalloid pollution of soil is a global issue owing to the deposition of these chemicals in the environment, affecting human health, plants, and animals. Also, they are hazardous at any concentration, even at extremely low levels [ 9 , 106 ]. Besides, HMs/metalloids can have a major effect on the abundance, structure, and diversity of soil microbial communities, which can lead to a shift in ecosystem functioning [ 107 , 108 ].…”

Section: Nanotechnological Approaches For Restoring Metalloid-contami...mentioning

confidence: 99%

Nanotechnology in the Restoration of Polluted Soil

et al. 2022

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The advancements in nanoparticles (NPs) may be lighting the sustainable and eco-friendly path to accelerate the removal of toxic compounds from contaminated soils. Many efforts have been made to increase the efficiency of phytoremediation, such as the inclusion of chemical additives, the application of rhizobacteria, genetic engineering, etc. In this context, the integration of nanotechnology with bioremediation has introduced new dimensions for revamping the remediation methods. Hence, advanced remediation approaches combine nanotechnological and biological remediation methods in which the nanoscale process regulation supports the adsorption and deterioration of pollutants. Nanoparticles absorb/adsorb a large variety of contaminants and also catalyze reactions by lowering the energy required to break them down, owing to their unique surface properties. As a result, this remediation process reduces the accumulation of pollutants while limiting their spread from one medium to another. Therefore, this review article deals with all possibilities for the application of NPs for the remediation of contaminated soils and associated environmental concerns.

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“…Other factors influencing metal availability in soil include the density and charge type in soil colloids, the degree of ligand complexation and the relative surface area of the soil (Marques et al, 2009). The broad interface given by soil colloids plays an important role in regulating the accumulation of heavy metals in the soil: the larger the surface area, the more heavy metals immobilized on soil colloids, although this may be metal‐specific (Martínez‐Alcalá & Bernal, 2020). Microbial activity, mineral composition, and soil aeration have also been shown to affect the availability of heavy metals in soil (Magnuson et al, 2001).…”

Section: Heavy Metals In Soil and Their Bioavailabilitymentioning

confidence: 99%

Insights into decontamination of soils by phytoremediation: A detailed account on heavy metal toxicity and mitigation strategies

Kumar

Bhat

Mushtaq

et al. 2021

Physiologia Plantarum

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In the current era of rapid industrialization, the foremost challenge is the management of industrial wastes. Activities such as mining and industrialization spill over a large quantity of toxic waste that pollutes soil, water, and air. This poses a major environmental and health challenge. The toxic heavy metals present in the soil and water are entering the food chain, which in turn causes severe health hazards. Environmental clean‐up and reclamation of heavy metal contaminated soil and water are very important, and it necessitates efforts of environmentalists, industrialists, scientists, and policymakers. Phytoremediation is a plant‐based approach to remediate heavy metal/organic pollutant contaminated soil and water in an eco‐friendly, cost‐effective, and permanent way. This review covers the effect of heavy metal toxicity on plant growth and physiological process, the concept of heavy metal accumulation, detoxification, and the mechanisms of tolerance in plants. Based on plants' ability to uptake heavy metals and metabolize them within tissues, phytoremediation techniques have been classified into six types: phytoextraction, phytoimmobilization, phytovolatilization, phytodegradation, rhizofiltration, and rhizodegradation. The development of research in this area led to the identification of metal hyper‐accumulators, which could be utilized for reclamation of contaminated soil through phytomining. Concurrently, breeding and biotechnological approaches can enhance the remediation efficiency. Phytoremediation technology, combined with other reclamation technologies/practices, can provide clean soil and water to the ecosystem.

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Environmental Impact of Metals, Metalloids, and Their Toxicity

Cited by 11 publications

References 256 publications

Methane Emissions and Related Physicochemical Soil and Water Parameters in the Peat Swamp and Melaleuca Forests of U Minh Thuong National Park in Vietnam

Methane Emissions and Related Physicochemical Soil and Water Parameters in the Peat Swamp and Melaleuca Forests of U Minh Thuong National Park in Vietnam

Nanotechnology in the Restoration of Polluted Soil

Insights into decontamination of soils by phytoremediation: A detailed account on heavy metal toxicity and mitigation strategies

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