Microbial Community Structure and Causal Analysis. in Sediments of Shallow Eutrophic Freshwater Lakes. Under Heavy Metal Compound Pollution

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137135 - 137135

Published: Jan. 7, 2025

Language: Английский

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Nutrient removal performance and microbial composition analysis in hybrid membrane bioreactor for municipal wastewater treatment

Bioprocess and Biosystems Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Language: Английский

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Metal concentration in freshwater sediments is linked to microbial biodiversity and community composition

Environment International, Journal Year: 2025, Volume and Issue: unknown, P. 109465 - 109465

Published: April 1, 2025

The effect of metals on freshwater microbiomes is poorly understood compared to other factors, such as nutrients or climate. While deleterious effects plant and animal biodiversity are well documented, the role in shaping biodiversity, composition functional potential sediment microbial communities remains unknown. Therefore, we explored if metal concentrations can be linked alterations communities. We collected sediments from 34 streams lakes Switzerland grouped them based their content. Microbial diversity community were determined using 16S rRNA gene amplicon sequencing. Most not contaminated with according Sediment Environmental Quality Criteria, although some stations exceeded limits for Cu, Zn, Pb. Nevertheless, correlational analysis indicated links various aspects biodiversity. Al significantly (p < 0.05) correlated richness. further observed a predominantly negative correlation between abundances dominant taxa. Predicted that different types have potential. For example, Mn exhibited significant positive nitrogen fixation potential, whereas Pb, Zn displayed correlation. Overall, our findings indicate may alter even at ambient concentrations. Further research into drivers factors loss warranted.

Language: Английский

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Spatial distribution and source apportionment of soil heavy metals in the areas affected by non-ferrous metal slag field in southwest China

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: July 19, 2024

The spatial distribution and source analysis of heavy metals in soil are great significance for the risk assessment control metal pollution. Herein, a total 87 topsoil samples (0–30 cm) were collected areas adjacent to non-ferrous slag field Gejiu City, Yunnan Province. typical concentrations, available phosphorus, potassium, ammonium nitrogen, nitrate pH each sample determined. Based on above basic data, origins was analyzed. results indicated that mean contents Pb, As, Cu, Zn, Ni Cr study site 247.82, 204.36, 104.83, 411.38, 29.73 67.59 mg kg -1 , respectively. Exception element, remaining five surpassed their respective background levels site. Especially, As element (with highest accumulation effect) is 11.1l times level, four elements 1.04–6.10 level Yunnan. Single factor pollution index showed degree Cu Zn light, threat quality. Furthermore, percentages sites at mild pollution, moderate 16.09%, 26.09% 63.22%, Additionally, order potential ecological hazard survey area &gt; Pb = Cr. dispersion within region impacted by both natural phenomena human activities. with severe mining northwest planting east, middle south area. main contribution sources mixed parent material industrial largely contributed activities transportation Pb. integrated agricultural source. Therefore, these useful can guide restoration this research work also be used other similar its affected

Language: Английский

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Evaluating toxic impact on marine microbial community using combined genetic and phenotypic approaches

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(58), P. 66120 - 66135

Published: Nov. 30, 2024

Language: Английский

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