Environmental Pollution with Heavy Metals: A Public Health Concern

Ali, Mir Mohammad; Hossain, Delower; Al-Imran,; Khan, Md. Suzan; Begum, M.Shanawaz Begum Dr. M.Shanawaz; Osman, Mahadi Hasan

doi:10.5772/intechopen.96805

Cited by 41 publications

(36 citation statements)

References 76 publications

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“…One of the most significant worldwide environmental contamination problems is heavy metal pollution [1]. Some human activities, such as mining, exhaust pollution, sewer irrigation, and the utilization of heavy metal goods, have raised the concentration of heavy metal ions, which can adversely affect human health and degrade ecosystems [2–4]. One of the most dangerous compounds in the atmosphere is mercury (II) (Hg(II)) [5, 6], which is a heavy metal found in the periodic table's transition element group.…”

Section: Introductionmentioning

confidence: 99%

A ‘turn‐off’ fluorescence sensor for selective Hg(II) based on phenothiazine derivative

Al‐Zahrani

2023

Luminescence

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Given how crucial it is to preserve a human‐safe and sustainable environment, the rapid discovery of possibly lethal heavy metals such as Hg(II) has drawn much attention in recent years. A novel sensor, known as (E)‐2‐((10‐octyl‐10H‐phenothiazin‐3‐yl)methylene)hydrazine‐1‐carbothioamide (PTZHC), was synthesized as a fluorescence ‘on–off’ sensor for Hg2+ ions. Coordination alters organic molecule electron densities, quenching the fluorescence intensity. PTZHC was described completely with the help of FTIR and 1H‐NMR spectrum studies. The Hg2+ ion was successfully detected using the PTZHC sensor even when there were other metal ions present. The limit of the detection was estimated to be 2.5 × 10−8 M and the Job's plot examination implied that PTZHC was bound to Hg2+ with a simple 1:1 stoichiometry in s CH3CN/H2O (9:1, v/v) suspension. To further cast light on the bridged effect on geometric and optoelectronic characteristics, time‐dependent density functional theory (TD‐DFT) at the B3LYP/6‐31G(d) level and DFT were both examined.

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Section: Introductionmentioning

confidence: 99%

A ‘turn‐off’ fluorescence sensor for selective Hg(II) based on phenothiazine derivative

Al‐Zahrani

2023

Luminescence

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“…"Recently, many plants have been reported to accumulate high level of the toxic metals in their sinks in the aquatic and terrestrial ecosystems. Such plants can remove the pollutant metals from soil and water" [7][8][9]. This potential approach to clean the environment, termed phytoremediation, draws on our centuries of experience in cultivating crops and is emerging as a low cost treatment technology for the contaminated environment.…”

Section: Introductionmentioning

confidence: 99%

Potentiality of Weed Plants for Phytoremediation of Heavy Metal Polluted Soil

Bhayani¹,

Siddhapura²,

Sindhav³

et al. 2023

IJECC

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Phytoremediation, which utilizes the remarkable ability of plants to concentrate elements and compounds from the environment and metabolize various molecules in their tissues, appears very promising for the removal of pollutants from the environment. In this study, the soil was altered by continuously adding industrial waste, affecting factors like pH, electrical conductivity, soil organic carbon, and metal concentrations. The Contamination factor for metals in the Metoda soil sample was Cu (1.98), Mn (1.58), Cr (1.58), Cd (7.67), and Pb (166.72), while the Pollution load index was 397.51. In comparison, the Shapar soil sample had a Contamination factor of Cu (2.24), Mn (1.58), Cr (1.23), Cd (12.67), and Pb (167.44), with a Pollution load index of 480.49. The contaminated sites showed higher micronutrient and trace element concentrations in weed plants compared to non-contaminated sites. Withania somnifera L. and Calotropis gigantea L. had the highest concentrations of Cd 2.08±0.05 and 2.60±0.05, respectively. Amaranthus spinosus L. accumulated the most Pb (36.34±0.2) and Cr (64.30±0.50), while Withania somnifera L. accumulated the most Mn (28.08±0.43), and Ipomoea aquatica Forssk accumulated the most Cu (43.68±0.37).This article addresses key research, potential benefits and the potential future needs for phytoremediation. Results indicated that uptake patterns of heavy metals by weed plant tissues were more or less related with nature of metals and species specifications. All the studies suggested that each weed plant could be used as a modern tool as a biomonitor.

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“… Metal contaminants exist usually in forms such as oxides/hydroxides, alloys, and impurities in waste solids. , In particular, chromium (Cr) and vanadium (V) are frequently found in industrial waste forms, such as slags and spent catalysts (Table ). Specifically, Cr often exists as Cr 3+ hydroxides, Cr 6+ oxides, and Cr metal, while V is commonly found as V n + oxides. , Cr is a naturally occurring element that poses significant health concerns due to its toxicity. Although the trivalent form of Cr is vital for biological functions in living organisms, its absence or excess can drastically alter the metabolic processes.…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, Cr often exists as Cr 3+ hydroxides, Cr 6+ oxides, and Cr metal, while V is commonly found as V n+ oxides. 26,43 Cr is a naturally occurring element that poses significant health concerns due to its toxicity. Although the trivalent form of Cr is vital for biological functions in living organisms, its absence or excess can drastically alter the metabolic processes.…”

Section: ■ Introductionmentioning

confidence: 99%

A Review of Traditional and Intensified Hydrometallurgy Techniques to Remove Chromium and Vanadium from Solid Industrial Waste

Saidi,

El Khawaja,

Boffito

2023

ACS Eng. Au

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The continuous growth of industrial activities, driven by economic expansion and technological advancements, has increased industrial waste generation. These wastes often contain hazardous substances, including heavy metals. Their improper disposal has become a significant environmental and health concern, necessitating global attention. To address this issue and mitigate the scarcity and cost of raw materials, recycling waste materials has emerged as a viable solution, particularly in the synthesis of construction materials. Various methods, such as pyrometallurgical and hydrometallurgical techniques, have been established for recycling industrial waste. This Review focuses on hydrometallurgical techniques, specifically targeting the separation of two highly toxic heavy metals: chromium and vanadium. It comprehensively explores various hydrometallurgical methods, including acid, alkaline, organic, and oxidative leaching, for solid waste materials. Additionally, this Review highlights several intensified leaching processes assisted by electrical fields, supercritical fluids, plasma, microwaves, and ultrasound. The presented methods offer promising approaches to effectively manage industrial waste.

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Environmental Pollution with Heavy Metals: A Public Health Concern

Cited by 41 publications

References 76 publications

A ‘turn‐off’ fluorescence sensor for selective Hg(II) based on phenothiazine derivative

A ‘turn‐off’ fluorescence sensor for selective Hg(II) based on phenothiazine derivative

Potentiality of Weed Plants for Phytoremediation of Heavy Metal Polluted Soil

A Review of Traditional and Intensified Hydrometallurgy Techniques to Remove Chromium and Vanadium from Solid Industrial Waste

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