The bioavailability and potential ecological risk of copper and zinc in river sediment are affected by seasonal variation and spatial distribution

Huang, Chi‐Wei; Chai, Zhen; Yen, Pei-Ling; How, Chun Ming; Yu, Chun; Chang, Chun‐Han; Liao, Vivian Hsiu‐Chuan

doi:10.1016/j.aquatox.2020.105604

Cited by 19 publications

(6 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings are in agreement with those of Huang et al [75], who stated that the bioavailability of Cu and Zn in river sediment may be affected by seasonal variations and spatial distribution [75]. Particularly, they assessed that seasonal variations may influence HM contamination in sediment, mainly in the dry season [75]. Accordingly, recent studies carried out in Ghana and India revealed that concentrations of Cu and Zn in river sediment were higher in the dry season than in the wet season [77,78].…”

Section: Discussionsupporting

confidence: 94%

“…In fact, due to their chemical characteristics, HMs can bind to the sediment phase but perturbation phenomena such as rain or earth movements can facilitate their transition to the water phase, which occurs through the suspended phase. These findings are in agreement with those of Huang et al [ 75 ], who stated that the bioavailability of Cu and Zn in river sediment may be affected by seasonal variations and spatial distribution [ 75 ]. Particularly, they assessed that seasonal variations may influence HM contamination in sediment, mainly in the dry season [ 75 ].…”

Section: Discussionsupporting

confidence: 93%

“…Accordingly, Cu and Zn, consistently found in environmentally significant amounts in sediments worldwide, mainly originate from vehicle emissions and atmospheric deposition [ 74 ]. However, they may be easily accumulated in river sediment, which is the ultimate sink for HM pollution [ 75 ]. Thus, these findings could be due to the fact that they are mostly collected in sediment through adsorption, sedimentation, or flocculation.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Assessing Heavy Metals in the Sele River Estuary: An Overview of Pollution Indices in Southern Italy

Di Duca,

Montuori,

De Rosa

et al. 2024

Toxics

View full text Add to dashboard Cite

Rapid industrialization, coupled with a historical lack of understanding in toxicology, has led in an increase in estuary pollution, frequently resulting in unexpected environmental situations. Therefore, the occurrence of heavy metals (HMs) constitutes a major environmental issue, posing a serious risk both to aquatic ecosystems and public health. This study aimed to evaluate the levels of eight HMs (As, Hg, Cd, Cr, Cu, Ni, Pb, and Zn) in water, suspended particles, and sediment near the Sele River estuary (Italy) in order to assess their environmental impacts on the sea and health risks for humans. The results revealed an increasing order of HM concentration according to the scheme suspended particulate matter (SPM) > sediment (SED) > dissolved phase (DP) and a moderate contamination status in sediment. The health risk assessment indicated that the non-carcinogenic risk was negligible. Carcinogenic risk, expressed as the incremental lifetime cancer risk (ILCR), was negligible for Cd and Ni and within tolerable limits for As, Pb, and Cr. The findings suggested that, even if there are currently no specific limits for chemical parameters in the transitional waters of Italy, monitoring systems should be implemented to determine pollution levels and implement effective steps to improve river water quality and reduce human health risks.

show abstract

Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Assessing Heavy Metals in the Sele River Estuary: An Overview of Pollution Indices in Southern Italy

Di Duca,

Montuori,

De Rosa

et al. 2024

Toxics

View full text Add to dashboard Cite

show abstract

“…A similar finding was published by Huang et al. [ 46 ] Slijepčević et al. [ 27 ] emphasized that the binding of metals to Fe and Mn oxides often occurs in sediments located near the discharge of industrial wastewater, as is the case with the VBK sediment.…”

Section: Resultssupporting

confidence: 82%

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Duduković

Beljin

Dubovina

et al. 2023

CLEAN Soil Air Water

View full text Add to dashboard Cite

This study was conducted to examine the effectiveness of removing Cu from sediment by electrokinetic (EK) treatment with electrodes in a hexagonal configuration, and whether water leached can be reused. Three experiments were performed (e1: continuous application of electricity, e2: no electricity at night, e3: application of solar panels) to evaluate the impact of the absence of electricity during night and the variations that may occur during the day when solar panels were used on the efficiency of the treatment. At the end of the treatments, 2-13% more Cu was detected in the cathode region (locations 5 and 10) compared to the initial concentration. Furthermore, based on the calculated mass balance, we concluded that Cu was bound to the electrode surface. In the remaining EK cell locations, the Cu content was reduced by 50-60% for e1, e2, and e3. For field application, treatment e3, in which solar panels are applied, is recommended, since there are no significant differences in the achieved efficiencies. A significant advantage of the treatment from an ecological point of view is reflected in the absence of an acidification effect. In this study, we also applied a model which showed satisfactory agreement with the experimental results. Analyses of leached water after electrokinetic treatments, e1, e2, e3, indicate that this water has a potential for irrigation use of agricultural land, aiming to meet the goals of the circular economy.

show abstract

“…The lipase that came from Candida rugosa [16]was the main focus. The research results provided significant new information on the possible heavy metal contamination in PLA that has been implanted with enzymes, thanks to a meticulous experimental design and analysis [17]. The outcomes showed that heavy metal concentrations could be accurately and consistently measured using the ICP-OES technique.…”

Section: Discussionmentioning

confidence: 93%

Evaluation of Heavy Metal Concentrations in Enzyme Embedded Poly Lactic Acid (EPLA) by ICP-OES: Lipase from Candida Rugosa.

Swain

2024

IJRASET

View full text Add to dashboard Cite

Enzymes like lipases are essential for catalyzing important reactions in the fields of biotechnology and industrial operations. For quality control and safety evaluations, however, the quantification of these contaminants is crucial because the presence of heavy metals in enzyme preparations can negatively affect their activity and stability. Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), a key component of this investigation, is used to measure the levels of heavy metals in lipase enzyme preparations embedded in polylactic acid (PLA). The lipase enzyme being studied comes from Candida rugosa, which is well-known for its considerable industrial applications. According to preliminary findings, the lipase enzyme is successfully protected from external heavy metal pollutants by the encapsulating technique, maintaining its enzymatic activity and stability. The lipase-PLA composite had only minimal quantities of heavy metals, according to the ICP-OES study. The research's conclusions show great potential for the creation of reliable and contaminant-free lipase enzyme preparations, which will increase their suitability for usage in a variety of industrial processes and encourage the use of biodegradable polymers, supporting environmental sustainability. By highlighting the significance of quality control and safety assessment through the determination of heavy metal concentrations, this research contributes to the larger field of enzyme biotechnology. It also highlights the potential of Candida Rugosa lipase implanted in PLA matrices for eco-friendly and sustainable biocatalytic applications in sectors ranging from food and pharmaceuticals to biofuel generation and other biodegradable polymers.

show abstract

The bioavailability and potential ecological risk of copper and zinc in river sediment are affected by seasonal variation and spatial distribution

Cited by 19 publications

References 40 publications

Assessing Heavy Metals in the Sele River Estuary: An Overview of Pollution Indices in Southern Italy

Assessing Heavy Metals in the Sele River Estuary: An Overview of Pollution Indices in Southern Italy

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Evaluation of Heavy Metal Concentrations in Enzyme Embedded Poly Lactic Acid (EPLA) by ICP-OES: Lipase from Candida Rugosa.

Contact Info

Product

Resources

About