Associations of anthropogenic activity and tributaries with the physicochemical, nutrient and microbial composition of the Ganga (Ganges) River, India

Water Research, Journal Year: 2025, Volume and Issue: 278, P. 123374 - 123374

Published: Feb. 25, 2025

The Ganga River (known internationally as the Ganges) is one of world's most prominent rivers, running from Himalayas to Bay Bengal and supporting livelihoods > 40 % India's 1.4 billion population. regionally globally important, agriculture industry, yet faces potentially detrimental water quality challenges arising runoff discharge increasing urbanization, industry agriculture. A ∼ 2700 km longitudinal survey nutrient microbial quality, including phytoplankton composition, was undertaken in November 2019. aim investigate if how anthropogenic activities (e.g. urbanisation, agriculture) tributary convergence (potentially reflecting both human activity flow influences) affect shift physicochemical, nutrient, parameters along river continuum. Segmented regression identified four zones distinct nutrient/microbial characteristics River, with breakpoints located near Kanpur, Varanasi downstream Farakka Barage, at distances 1020, 1500 2350 Himalayan source. Population density, land use urban cover were associated selected parts catchment, elevated chemical concentrations likely agriculture, sewage inputs. Some areas Kanpur Varanasi), converging tributaries Yamuna Varuna) barrages Farakka) changes availability, activity/abundance modelled discharge, driving apparent relevant locations. Downstream shifts observed throughout This information can help prioritize locations for targeted monitoring and/or remediation interventions has illustrated an approach quantify impacts inputs on major systems, such River.

Language: Английский

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Unraveling fate of sulfonamide antibiotics in sandy loam soil and water of India and environmental risk assessment

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 28, 2025

Language: Английский

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Impact of the Technical Snow Production Process on Bacterial Community Composition, Antibacterial Resistance Genes, and Antibiotic Input—A Dual Effect of the Inevitable

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(6), P. 2771 - 2771

Published: March 19, 2025

Although climate warming-induced snow cover reduction, as well the development of ski tourism in hot and dry countries, is shifting industries toward use technical snowmaking, its raises hydrological, health-related, environmental concerns. This study was aimed at enhancing our current understanding impact snowmaking on environment human health. Culturable bacteriological indicators water quality (Escherichia coli, fecal enterococci, Salmonella, Staphylococcus), presence concentration antimicrobials, genes determining bacterial antibiotic resistance (ARGs), next-generation sequencing-based community composition diversity were examined from river water, technological reservoirs, five resorts. The number culturable bacteria prevalence most ARGs decreased during snowmaking. antimicrobial agents changed irregularly, e.g., ofloxacin erythromycin dropped process, while cefoxitin quantified only snow. altered through resulting survivability freezing temperatures or agents. Water storage reservoirs prior to allows us reduce ARG contaminants. Frequent thorough cleaning devices may aid reducing negative can have by contaminant input limiting disturbance ecological balance.

Language: Английский

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Assessing microbial ecology and antibiotic resistance genes in river sediments

Infection Genetics and Evolution, Journal Year: 2025, Volume and Issue: 130, P. 105738 - 105738

Published: March 23, 2025

Language: Английский

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Comparison of the distribution of groundwater remediation units and contaminant (arsenic, iron, fluoride) distribution in Bihar, India for improved water security and management

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 372, P. 123157 - 123157

Published: Nov. 19, 2024

Language: Английский

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