Toxicity evaluation of a heavy‐metal‐polluted river: Pollution identification and bacterial community assessment

Water Environment Research, Год журнала: 2023, Номер 95(7)

Опубликована: Июнь 25, 2023

The Salt River is an important urban river in Kaohsiung, Taiwan. In this study, the source identification and risk toxicity assessment of heavy-metal-contaminated sediments were investigated. geo-accumulation index (Igeo), enrichment factor (EF), sediment quality guidelines (SQGs), potential ecological (RI), pollution load (PLI), toxic units (TU) applied to determine effects heavy metals on microbial diversities ecosystems. Results from environmental show that high concentrations Zn, Cr, Ni detected midstream area sum (ΣTUs) (7.2-32.0) higher than downstream (14.0-19.7) upstream (9.2-17.1). It could be because continuous inputs heavy-metal-contained wastewaters adjacent industrial parks. also inferred residential commercial areas possibly caused by nearby vehicle emissions, non-point pollution, domestic wastewater discharges. metagenomic assays contained significant diversities. Metal-tolerant bacterial phyla (Proteobacteria: 24.4%-46.4%, Bacteroidetes: 1.3%-14.8%, Actinobacteria: 2.3%-11.1%) pathogenic (Chlamydiae: 0.5%-37.6% Chloroflexi: 5.8%-7.2%) with relatively abundance detected. bacteria would adsorb cause increased metal sediments. indicate composition environments was affected anthropogenic human activities heavy-metal-polluted ecosystem variations communities. PRACTITIONER POINTS: Microbial community highly pollution. Wastewaters traffic contribute metals. Proteobacteria, Bacteroidota, Actinobacteria are dominant heavy-metal-tolerant Toxicity required study levels heavy-metal

Язык: Английский

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Unravelling the genomic and environmental diversity of the ubiquitous Solirubrobacter

Environmental Microbiology, Год журнала: 2024, Номер 26(8)

Опубликована: Июль 1, 2024

Abstract Solirubrobacter , though widespread in soils and rhizospheres, has been relatively unexplored despite its ubiquity. Previously acknowledged as a common soil bacterium, our research explores phylogenomics, pangenomics, environmental diversity, interactions within bacterial communities. By analysing seven genomic sequences, we have identified pangenome consisting of 19,645 protein families, which 2644 are shared across all studied genomes, forming the core genome. Interestingly, non‐motility reported isolates, discovered genes for flagellin partial flagellum assembly pathway. Examining 16S ribosomal RNA revealed substantial with 3166 operational taxonomic units Mexican soils. Co‐occurrence network analysis further demonstrated significant integration Through phylogenomic scrutiny, conclusively excluded NCBI's GCA_009993245.1 genome from being classified . Our into metagenomic diversity various environments confirmed presence rhizospheres certain soils, underscoring adaptability. The geographical ubiquity raises intriguing questions regarding potential plant hosts biotic abiotic factors influencing soil. Given ecological significance genetic warrants investigation potentially crucial yet underappreciated keystone species.

Язык: Английский

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Formation and estimated cytotoxicity of trihalomethanes and haloacetic acids during ozonation of nonylphenol in bromide-containing water after chlorination process: Impact of ozonation initial pH

Toxicology Reports, Год журнала: 2024, Номер 13, С. 101769 - 101769

Опубликована: Окт. 18, 2024

Язык: Английский

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The Multifaceted Function of Water Hyacinth in Maintaining Environmental Sustainability and the Underlying Mechanisms: A Mini Review

International Journal of Environmental Research and Public Health, Год журнала: 2022, Номер 19(24), С. 16725 - 16725

Опубликована: Дек. 13, 2022

Water hyacinth (Eichhornia crassipes) (WH) is a widespread aquatic plant. As top invasive macrophyte, WH causes enormous economic and ecological losses. To control it, various physical, chemical biological methods have been developed. However, multiple drawbacks of these limited their application. While being noxious has great potential in many areas, such as phytoremediation, manufacture value-added products, so on. Resource utilization benefits therefore, sustainable strategy for its control. In accordance with the increasing urgency maintaining environmental sustainability, this review concisely introduced up to date specifically pollution remediation curbing global warming crisis discussed underlying mechanisms.

Язык: Английский

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Degradation of pyrene in sediments based on the activation of peroxymonosulfate with nitrogen-doped magnetic biochar: Synergistic effect and mechanism

Journal of environmental chemical engineering, Год журнала: 2022, Номер 10(6), С. 108910 - 108910

Опубликована: Ноя. 2, 2022

Язык: Английский

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