Exploration of the factors that influence total phosphorus in surface water and an evaluation of surface water vulnerability based on an advanced algorithm and traditional index method

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 342, P. 118155 - 118155

Published: May 18, 2023

Language: Английский

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Ecological and human health risk of heavy metals in Nubui River: a case of rural remote communities

Frontiers in Water, Journal Year: 2024, Volume and Issue: 6

Published: June 10, 2024

Introduction The Nubui River is a primary source of water for drinking purposes and other domestic activities in the rural communities dotted along its riparian zone, with agriculture being major activity occurring this important ecotone. river has become potential sink agrochemical residue, including heavy metals, apparent aesthetic quality issues, associated health consequences. This study, therefore, assessed risks metals within populations catchment areas, who have limited sources improved supply. Methods concentration iron (Fe), lead (Pb), cadmium (Cd), mercury (Hg), zinc (Zn) was on cumulatively 275 samples, using Perkin Elmer PINAAcle 900 T atomic absorption spectrophotometer 11 months. A cross-sectional survey conducted amongst 338 community members, following field observations utilisation types, appeal, perceived from River. To determine human ecological hazard quotient, chronic daily intake, contamination factor, pollution indices were computed. STATA version 16 used to analyse results. Results Descriptive statistics average concentrations surface at all sampling stations showed pattern Hg < Pb Cd Zn Fe, relatively low concentrations, between 0.001 0.004 mg/L Hg, 0.0011 0.0019 Pb, 0.0461 0.0739 Zn, 0.2409 0.377 Fe. findings, however, high levels 0.0215 0.0383 two five comparison World Health Organisation (WHO) guideline values some Hazard quotient indicate that population safe non-carcinogenic exposure through oral routes. factor metal exceed recommended 1 100, respectively. Meanwhile, 73.1% members evidently preferred various 86.1% them utilising it purposes. occurrence results risks.

Language: Английский

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Associations between weather extremes and faecal contamination along pathogen transmission pathways in rural Bangladeshi households: a prospective observational study

The Lancet Planetary Health, Journal Year: 2025, Volume and Issue: 9(1), P. e5 - e13

Published: Jan. 1, 2025

Weather extremes are predicted to influence pathogen exposure but their effects on specific faecal-oral transmission pathways not well investigated. We evaluated associations between extreme rain and temperature during different antecedent periods (0-14 days) Escherichia coli along eight in rural Bangladeshi households. used data from the WASH Benefits Bangladesh cluster-randomised controlled trial (NCT01590095). E was enumerated hand rinses children younger than 5 years mothers, food, stored drinking water, tubewells, captured flies, ponds, courtyard soil using IDEXX Quanti-Tray/2000 nine rounds over 3·5 spatiotemporally matched daily weather data. generalised linear models with robust standard errors estimate count ratios (ECRs) associated temperature, defined as greater 90th percentile of values study period. A total 26 659 samples were collected Controlling for sampling day increased food (ECR=3·13 [95% CI 1·63-5·99], p=0·0010), water (ECR=1·98 [1·36-2·88], p=0·0004), ponds (ECR=3·46 [2·34-5·11], p<0·0001), reduced (ECR=0·36 [0·24-0·53], p<0·0001). Extreme before tubewells (ECR=0·10 [0·02-0·62], p=0·014). Associations similar rainfall 1-7 days slightly attenuated 14 sampling. rainfall, (ECR=1·49 [1·05-2·12], p=0·025) (ECR=3·01 [1·51-6·01], p=0·0020). all particularly pronounced food. Neither nor consistently hands flies. In Bangladesh, measures control enteric infections following should focus treatment safe storage reduce contamination at home reducing surface waters. Bill & Melinda Gates Foundation, National Institutes Health, World Bank.

Language: Английский

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Virological Water Quality

Journal of Food Science and Nutrition Therapy, Journal Year: 2025, Volume and Issue: 11(1), P. 001 - 013

Published: Jan. 1, 2025

Water is one of the most important environmental elements for all living creatures on earth. Attention to water quality essential maintaining ecosystems and life; consideration this issue has increased a global scale. Wastewater significant impact public health because it reflects society’s progress. Wastewater-Based Epidemiology (WBE) become popular surveillance technique, especially in regions that are more vulnerable, early outbreak detection, trend tracking infectious diseases, real-time insights. WBE provides thorough insight into community lifestyle behaviors by assisting pathogens, including viruses, sewage recreational water. Monitoring viral infections at level requires use WBE, which acts as supplemental surveillance. Nonetheless, there exists an unexplored possibility broaden its function monitoring health. In order understand connection between wastewater health, study highlights significance drinking safety regulations emphasizing necessity further integration management, summarizes waterborne viruses cause risks their pathogenicity. We can conclude we must search indicators include virological method guidelines protect

Language: Английский

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A systematic review of climate change impacts on water quality in transitional environments from a multi-hazard perspective

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109194 - 109194

Published: Feb. 1, 2025

Language: Английский

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Modeling the effects of extreme precipitation on groundwater resource components of Dagu aquifer in China

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 59, P. 102325 - 102325

Published: March 21, 2025

Language: Английский

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Sanitary inspection characteristics, precipitation, and microbial water quality - A three-country study of rural boreholes in Sub-Saharan Africa

PLOS Water, Journal Year: 2025, Volume and Issue: 4(5), P. e0000281 - e0000281

Published: May 14, 2025

Microbial contamination of drinking water contributes to disease burdens that disproportionately impact infants and children are largely preventable through suitable design, operation, monitoring, management improved systems. The World Health Organization (WHO) has published guidance on safety planning, quality approaches, including recommendations sanitary inspection (SI) systems detect manage microbial hazards associated with fecal contamination. SI is a low-cost risk assessment tool for based observable factors (RFs) potential hazards. While been previously studied, much the literature not quantitatively explored rainfall interactions as drivers We merged remote-sensing estimates data collected from 966 rural boreholes in Ethiopia, Ghana, Burkina Faso. Logistic regressions (binary ordinal) were used characterize associations total score, well individual (RFs), classes RFs (i.e., “Source,” “Transport,” “Barrier” risks) indicator bacteria (FIB) occurrence, controlling (over past 1–15 days before sampling). found (P < 0.05, OR: 3.5, 95% CI 1.05-11.66) between scores E. coli categories fifteen-day rainfall. Furthermore, “barrier” category, “transport” category occurrence. Several also significantly Incorporating precipitation into models model fit characteristics (improved Pseudo R squared AIC value); specifically, accounting cumulative during fifteen sampling (increased pseudo-R 2 0.035 0.05) These findings can inform construction, maintenance, monitoring prompt timely remediation defects such systems, potentially enhancing safety.

Language: Английский

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Assessing the Climate Resilience of Community-Managed Water Supplies in Ethiopia and Nepal

Water, Journal Year: 2022, Volume and Issue: 14(8), P. 1293 - 1293

Published: April 15, 2022

Understanding the resilience of water supplies to climate change is becoming an urgent priority ensure health targets are met. Addressing systemic issues and building community-managed supplies, which serve millions people in rural LMIC settings, will be critical improve access safe drinking water. The How Tough WASH (HTIW) framework assess was applied Ethiopia Nepal effectiveness this field conditions. these measured along six domains—the environment, infrastructure, management, institutional support, community governance supply chains—that can affect how they respond effects. We found that HTIW provided objective measure could used rank order for action. also identified. tools methods were easy deploy by research teams. studied had low moderate change. Service management support weak both countries. data from suggests many small-town communities unlikely resilient future without increased investment support. use simple frameworks such as important supporting decisions around investments identifying actions.

Language: Английский

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3D hydrogel-based salt resistant self-floating solar-driven interfacial evaporator with efficient water-lifting capacity for desalination

Applied Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 125126 - 125126

Published: Dec. 1, 2024

Language: Английский

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Preparation of C-CuxO composite from biosorption product of lactic acid bacteria and its application in solar evaporator for desalination

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 330, P. 125223 - 125223

Published: Oct. 7, 2023

Language: Английский

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