Ecological risk of heavy metals in lake sediments of China: A national-scale integrated analysis

Journal of Cleaner Production, Год журнала: 2021, Номер 334, С. 130206 - 130206

Опубликована: Дек. 24, 2021

Язык: Английский

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Roles of dissolved organic matter (DOM) in shaping the distribution pattern of heavy metal in the Yangtze River

Journal of Hazardous Materials, Год журнала: 2023, Номер 460, С. 132410 - 132410

Опубликована: Авг. 26, 2023

Язык: Английский

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Assessment of environmental impacts of heavy metal pollution in rice in Nanning, China

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 24, 2025

Nowadays rice has become one of the world's staple foods. Rice in southern China is also a food for everyone, however, with development China's industrialization model, many industrial areas may be contaminated by heavy metals, leading to contamination agricultural areas. With recent years, Nanning heavily area, and favourite food. Therefore, it matter concern detect whether metals contaminate due environmental factors. Five administrative villages were selected from 12 districts, 20% natural randomly soil water sample taking using probability distribution points making number samples each village evenly distributed. The single gene index pollution method Nemerow composite was used evaluate polluted crops. evaluated through national standard Food Safety Contaminant Limits. survey shows that metal moderate, especially cadmium more serious, but risk factors area small impact on overall safety quality rice, which still within controllable range. total exceedance rate surveyed local 20.95%, paddy 33.33%. rates lead, cadmium, inorganic arsenic, mercury 2.23%, 17.88%, 0.56%, 0.84% respectively. Cadmium identified as primary contaminant highest detected concentration reaching 1.23 mg/kg, 6.15 times above limit set health standards. This study environment Province low, caused relatively little rice. However, since will continue enrich chain time, long-term use cause harm human body. necessary raise attention governments rice-producing safety, then take effective measures improve detection technology, crop quality, protect people's safety.

Язык: Английский

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Heavy metals in lake surface sediments in protected areas in Poland: concentration, pollution, ecological risk, sources and spatial distribution

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Сен. 2, 2022

Abstract This paper presents the state and spatial distribution of surface sediment contamination 77 lakes in Poland by Cr, Ni, Cd, Pb, Zn, Cu. The analyzed were located within a network nature protection areas territory European Union (EU). Spatial heavy metals (HMs), factors favoring delivery/accumulation HMs sediments, pollution sources analyzed. results indicate lake sediments HMs, but potentially toxic effects are only found single lakes. Cr indicates predominant impacts point sources, while for impact non-point sources. analysis showed presence with very high values particular (hot spots) western part Poland, group 5 low Zn (cold was identified central Poland. Principal component that wetlands is factor limiting inflow to Also, lower concentrations catchments higher proportion national parks reserves. Higher Special Protection Areas designated under EU Birds Directive. positive matrix factorization four HMs. High their delivery from industrial, urbanized, agricultural areas. However, these overlap, which disturbs characteristic quantitative profiles assigned

Язык: Английский

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Potentially toxic elements in lake sediments in China: Spatial distribution, ecological risks, and influencing factors

The Science of The Total Environment, Год журнала: 2023, Номер 868, С. 161596 - 161596

Опубликована: Янв. 13, 2023

Язык: Английский

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Nematode as a biomonitoring model for evaluating ecological risks of heavy metals in sediments from an urban river

Ecological Indicators, Год журнала: 2023, Номер 147, С. 110013 - 110013

Опубликована: Фев. 16, 2023

Heavy metals have attracted much attention due to their irreversibility, persistence, concealment and bioaccumulation. Biomonitoring method combined chemical analysis can be well evaluate health risks of heavy in the environment. In this study, eleven sediments water samples were collected along Xihe River, which was polluted by Shenyang city China. The content multiple these determined inductively coupled plasma mass spectrometry. 18S rRNA gene sequencing performed identify composition diversity nematodes fine River sediments. biological toxicity water-soluble extracts from further assessed referring different endpoints Caenorhabditis Elegans. results indicated that risk high (potential ecological index = 308.75), Hg Cd are main contributing factors. relative abundance complemented result, Enoplida, Mononchida, Triplonchida, Chromadorida presented a significant positive correlation with concentration metals. Specially, sensitive changes positively correlated As, Pb V. Therefore, such as applied environmental monitoring

Язык: Английский

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Iron Deficiency and Nephrotoxic Heavy Metals: A Dangerous Interplay?

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(6), С. 5315 - 5315

Опубликована: Март 10, 2023

Heavy metals are common in our environment, and all individuals exposed to them some extent. These toxic have several harmful effects on the body, including kidney, which is a very sensitive organ. Indeed, heavy metal exposure has been linked an increased risk of chronic kidney disease (CKD) its progression, may be explained by well-established nephrotoxic these metals. In this hypothesis narrative literature review, we will shed light potential role that another highly problem patients with CKD, iron deficiency, play damaging patient group. Iron deficiency previously uptake intestine due upregulation receptors also take up other Furthermore, recent research suggests retention kidney. Therefore, hypothesize plays crucial CKD supplementation might strategy combat detrimental processes.

Язык: Английский

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Water Quality Assessment of Ex-Mining Lakes Converted Man-made Wetlands in Paya Indah Wetlands, Selangor, Malaysia

Water Air & Soil Pollution, Год журнала: 2025, Номер 236(2)

Опубликована: Янв. 10, 2025

Язык: Английский

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Spatiotemporal Response and Phytopotential of Typha domingensis for Management of Aquatic Metal Pollution on the Central African Copperbelt

Ecology and Evolution, Год журнала: 2025, Номер 15(3)

Опубликована: Фев. 28, 2025

ABSTRACT Anthropogenically accelerated metal pollution of lotic systems draining mining landscapes remains a global concern due to its non‐degradability and ecotoxic nature. Nevertheless, the efficacy macrophytes as indicators remediators metal(loid) pollutants in aquatic ecosystems regions is recognised globally. However, mineral‐rich Central African Copperbelt (CACB), there limited research on effectiveness for management. Therefore, this study investigated phytopotential Typha domingensis Pers. (Typhaceae), nature‐based approach managing CACB. A total 252 samples each sediment T. were collected monthly between May 2022 April 2023 from seven streams Kansanshi sub‐catchment CACB analysed evaluate spatiotemporal variability phytoindication phytoremediation potential As, Cu, Pb Zn stream sediments. Metal(loid)s at 71% predominantly accumulated below‐ground biomass with mean concentrations 3–6 mg/kg 9–259 25–36 38–69 Zn. The BAF was above 1 As (0.8–2.6), (10.7–24.3) (1.4–4.3), indicating an accumulator these elements but excluder Cu (BAF < 1). Additionally, TF (1.5–2.0), (1.4–1.5) (1.0–2.0), macrophyte's extraction efficacy. For (TF 1), translocation characterised phytostabiliser. Similar seasonal trends also observed. response phytoindicator phytoremediator contaminants sediments should be considered management CACB's ecosystems.

Язык: Английский

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Recent Progress on Ex Situ Remediation Technology and Resource Utilization for Heavy Metal Contaminated Sediment

Toxics, Год журнала: 2023, Номер 11(3), С. 207 - 207

Опубликована: Фев. 23, 2023

Sediment is an important part of aquatic systems, which plays a vital role in transporting and storing metals. Due to its abundance, persistence, environmental toxicity, heavy metal pollution has always been one the hot spots world. In this article, state-of-art ex situ remediation technology for metal-contaminated sediments elaborated, including sediment washing, electrokinetic (EKR), chemical extraction, biological treatment, as well encapsulating pollutants by adding some stabilized/solidified materials. Furthermore, progress sustainable resource utilization methods, such ecosystem restoration, construction materials (e.g., fill materials, partition blocks, paving blocks), agriculture use are reviewed detail. Finally, pros cons each technique summarized. This information will provide scientific basis selecting appropriate particular scenario.

Язык: Английский

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