Interpretable tree-based ensemble model for predicting beach water quality

Water Research, Journal Year: 2022, Volume and Issue: 211, P. 118078 - 118078

Published: Jan. 15, 2022

Language: Английский

---

The potential of using E. coli as an indicator for the surveillance of antimicrobial resistance (AMR) in the environment

Current Opinion in Microbiology, Journal Year: 2021, Volume and Issue: 64, P. 152 - 158

Published: Oct. 29, 2021

To understand the dynamics of antimicrobial resistance (AMR), in a One-Health perspective, surveillance play an important role. Monitoring systems already exist human health and livestock sectors, but there are no environmental monitoring programs. Therefore is urgent need to initiate AMR programs nationally globally, which will complement existing different sectors. However, should not only identify anthropogenic influences levels AMR, they also allow for identification transmissions from animal populations. In current review we therefore propose using resistant Escherichia coli as indicators occurrence environment, including wildlife.

Language: Английский

---

Antibiotic contamination in wastewater treatment plant effluents: Current research and future perspectives

Environmental Nanotechnology Monitoring & Management, Journal Year: 2025, Volume and Issue: unknown, P. 101047 - 101047

Published: Jan. 1, 2025

Language: Английский

---

The Role of Conventional Methods and Artificial Intelligence in the Wastewater Treatment: A Comprehensive Review

Processes, Journal Year: 2022, Volume and Issue: 10(9), P. 1832 - 1832

Published: Sept. 12, 2022

Water pollution is a severe health concern. Several studies have recently demonstrated the efficacy of various approaches for treating wastewater from anthropogenic activities. Wastewater treatment an artificial procedure that removes contaminants and impurities or sewage before discharging effluent back into environment. It can also be recycled by being further treated polished to provide safe quality water use, such as potable water. Municipal industrial systems are designed create discharged surrounding environments must comply with authorities’ environmental discharge rules. An effective, low-cost, environmentally friendly, long-term system critical protecting our unique finite supplies. Moreover, this paper discusses classification three traditional methods precipitation/encapsulation, adsorption, membrane technologies, electrodialysis, nanofiltration, reverse osmosis, other intelligence technology. The performances in terms application variables been fully addressed. ultimate purpose protect environment compatible public socioeconomic considerations. Realization nature guiding concept designing practical advanced technology assure wastewater’s productivity, safety, quality.

Language: Английский

---

The utility of Escherichia coli as a contamination indicator for rural drinking water: Evidence from whole genome sequencing

PLoS ONE, Journal Year: 2021, Volume and Issue: 16(1), P. e0245910 - e0245910

Published: Jan. 22, 2021

Across the water sector, Escherichia coli is preferred microbial quality indicator and current guidance upholds that it indicates recent faecal contamination. This has been challenged, however, by research demonstrating growth of E . in environment. In this study, we used whole genome sequencing to investigate links between contamination drinking water. We sequenced 103 isolates sampled from 9 supplies rural Kitui County, Kenya, including points collection (n = 14) use 30). Biomarkers for definitive source tracking remain elusive, so analysed phylogenetic grouping, multi-locus sequence types (MLSTs), allelic diversity, virulence antimicrobial resistance (AMR) genes insight into their likely source. Phylogroup B1, which generally better adapted environments, dominant our samples 69) diversity differences (z 2.12, p 0.03) suggest naturalised populations may be particularly relevant at with lower concentrations (<50 / 100mL). The strains are more have originated human and/or 50), were found poorly protected (4 sites) or (12 sites). discuss difficulty interpreting health risk grab samples, especially household level, findings support categories encourage monitoring accounts sanitary conditions temporal variability.

Language: Английский

---

Assessing fecal contamination from human and environmental sources using Escherichia coli as an indicator in rural eastern Ethiopian households—a cross-sectional study from the EXCAM project

Frontiers in Public Health, Journal Year: 2025, Volume and Issue: 12

Published: Jan. 6, 2025

Enteric pathogens are a leading causes of diarrheal deaths in low-and middle-income countries. The Exposure Assessment Campylobacter Infections Rural Ethiopia (EXCAM) project, aims to identify potential sources bacteria the genus and, more generally, fecal contamination infants during first 1.5 years life using Escherichia coli as indicator. A total 1,310 samples (i.e., hand rinses from infant, sibling and mother, drinking bathing water, food fomite provided or touched by infants, areola swabs, breast milk soil) were collected 76 households between May 2021 June 2022. Samples assigned two groups infant age: TP1 (time point 1), 4 8 months age, TP2, 11 15 age. Fluorometric semi-selective colorimetric approaches used quantify E. field samples. Overall, was ubiquitous within selected (56.8% across study). frequently detected than average (>53%) with high concentration (>2-log CFU) soil (g) per pair hand, while opposite trend (<33%; <1.5-log observed (g mL), areola, (mL; p < 0.01). fomites water (>51%), but at low (<1.5-log CFU). Correlation analysis different sample types suggested that mother's hands might play key role transmission (p 0.01; r 2 > 0.3). Using surrogate, our study identified mother (hands areola) reservoirs likely be involved frequent contaminants rural Ethiopian households.

Language: Английский

---

Naturalized Escherichia coli in Wastewater and the Co-evolution of Bacterial Resistance to Water Treatment and Antibiotics

Frontiers in Microbiology, Journal Year: 2022, Volume and Issue: 13

Published: May 30, 2022

Antibiotic resistance represents one of the most pressing concerns facing public health today. While current antibiotic crisis has been driven primarily by anthropogenic overuse antibiotics in human and animal health, recent efforts have revealed several important environmental dimensions underlying this issue. resistant (AR) microbes, AR genes, all found widespread natural environments, reflecting ancient origins phenomenon. In addition, modern societal advancements sanitation engineering (i.e., sewage treatment) also contributed to dissemination resistance, concerningly, may be promoting evolution water treatment. This is reflected characterization naturalized wastewater strains Escherichia coli-strains that appear adapted live (and meat packing plants). These carry a plethora stress-resistance genes against common treatment processes, such as chlorination, heat, UV light, advanced oxidation, mechanisms which potentially facilitate their survival during an abundance evidence suggests some linked (e.g., tetracycline chlorine resistance). As such, these E. coli populations co-evolving both Recently, extraintestinal pathogenic (ExPEC) shown exhibit phenotypic treatment, seemingly associated with presence various shared genetic elements coli. Consequently, microbes evolving two interventions for controlling infectious disease society-antibiotic therapy

Language: Английский

---

Septic system–groundwater–surface water couplings in waterfront communities contribute to harmful algal blooms in Southwest Florida

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 837, P. 155319 - 155319

Published: April 20, 2022

Language: Английский

---

Plasma-Generated Nitric Oxide Water Mediates Environmentally Transmitted Pathogenic Bacterial Inactivation via Intracellular Nitrosative Stress

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(3), P. 1901 - 1901

Published: Jan. 18, 2023

Over time, the proportion of resistant bacteria will increase. This is a major concern. Therefore, effective and biocompatible therapeutic strategies against these are urgently needed. Non-thermal plasma has been exhaustively characterized for its antibacterial activity. study aims to investigate inactivation efficiency mechanisms plasma-generated nitric oxide water (PG-NOW) on pathogenic water, air, soil, foodborne Gram-negative Gram-positive bacteria. Using colony-forming unit assay, we found that PG-NOW treatment effectively inhibited growth Moreover, intracellular (NO) accumulation was evaluated by 4-amino-5-methylamino-2′,7′-dichlorofluorescein diacetate (DAF-FM DA) staining. The reduction viable cells unambiguously indicates anti-microbial effect PG-NOW. soxR soxS genes associated with nitrosative stress, oxyR regulation corresponds oxidative stress in bacterial cells. To support mediated PG-NOW, have further assessed soxRS gene expressions after treatment. Accordingly, expression enhanced, whereas decreased following disruption cell morphology observed using scanning electron microscopy (SEM) analysis. In conclusion, our findings furnish evidence an initiation point progress development PG-NOW-based treatments.

Language: Английский

---

Enterococci, Van Gene-Carrying Enterococci, and Vancomycin Concentrations in the Influent of a Wastewater Treatment Plant in Southeast Germany

Microorganisms, Journal Year: 2024, Volume and Issue: 12(1), P. 149 - 149

Published: Jan. 12, 2024

Vancomycin-resistant (VR) Enterococcus spp. can be detected in high concentrations wastewaters and pose a risk to public health. During one-year study (September 2022–August 2023), 24 h composite raw wastewater samples (n = 192) of municipal treatment plant were investigated for cultivable enterococci. After growth on Slanetz–Bartley agar (SBA), mean concentration 29,736 ± 9919 cfu/mL was calculated. Using MALDI-TOF MS characterize randomly picked colonies 576), the most common species found faecium (72.6%), E. hirae (13.7%), faecalis (8.0%). Parallel incubation SBA VRESelect resulted rate VR enterococci 2.0 1.5%. All tested strains grown 172) carried vanA (54.6%) or vanB gene (45.4%) with limited sequence differences. In susceptibility experiments, these isolates showed high-level resistance vancomycin (>256 µg/mL). Concentration determined 93.7% 112 (mean: 123.1 64.0 ng/L) varied between below 100 ng/L (the detection limit) 246.6 ng/L. A correlation among total could not found. The combination commercial vancomycin-containing applied clinical microbiology multiplex PCR van genes is an easy-to-use tool quantify water samples.

Language: Английский

---