Changing water quality of a major rainfed river system of western India: insights from the Bhima river using water quality index DOI Creative Commons

Yash Yash,

Anwesha Ghosh, Roshni Arora

et al.

Environmental Research Communications, Journal Year: 2024, Volume and Issue: 6(10), P. 105018 - 105018

Published: Aug. 30, 2024

Abstract The Bhima River originating from the Western Ghats of India, a global biodiversity hotspot, is one most dammed rivers, used intensively for multifaceted purposes including agriculture and domestic usage. present study was undertaken early pre-monsoon to start monsoon 2023 encompassing 68 sampling points across its tributaries develop water quality index (WQI). Environmental parameters SWT, pH, DO, TDS EC were measured in situ during time sampling. Surface samples (1 L) collected estimation dissolved nutrients. concentration oxygen found be below 2 mg l −1 several representing hypoxic conditions riverine system. ranged 55.12 ppm 2983 108.3 μS cm 5939 respectively, indicating significant spatial temporal variations. ammonia (0.05 –14.09 ), nitrate (5.88 1596.16 o- phosphate (0.21 –35.47 ) reactive silicate (36.70 1455.15 indicates possible influx agricultural run-off untreated municipal discharges. Calculations (WQI) using showed ‘bad very bad’ ‘medium good’ along tributaries. In-depth analyses WQI pollution ‘hot-spots’ hints toward urgent implementation basin-level mitigation strategies improvement ecological health Upper basin.

Language: Английский

Counterfactual Scenarios of Anthropogenic Climate Change Illustrate Effects on Global Water Yields DOI
Zihao Wen,

Lu Tan,

Qingyi Luo

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Tracking grid-level freshwater boundary exceedance along global supply chains from consumption to impact DOI Creative Commons
Siyu Hou, Jingwen Huo, Xu Zhao

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Consumption behaviors exert pressure on water resources both locally and globally through interconnected supply chains, hindering the achievement of Sustainable Development Goals (SDG) 6 (Clean sanitation) 12 (Responsible consumption production). However, it is challenging to link hotspots depletion across spatial scales final while reflecting intersectoral competition for water. Here, we estimate global exceedance regional freshwater boundaries (RFBs) due human withdrawal at a 5-arcmin grid scale using 2015 data, enabling identification different scales. To reduce uncertainty, use average estimates from 15 hydrological models 5 environmental flow requirement methods. We further attribute 245 economies 134 sectors via multi-region input-output model, EMERGING. Our refined framework reveals previously unknown connections between international trade. Notably, 24% grid-level RFB (718 km3/yr; 95% confidence interval 659–776 km3/yr) outsourced trade, with largest flows (52 47–56 water-stressed South-Central Asia arid West Asia. The demand cereals other agricultural products dominates consumption-based (29%), exports textiles machinery equipment exacerbate territorial in manufacturing hubs within emerging economies. analysis facilitates tracing scarcity along chain, assigning responsibilities finer

Language: Английский

Citations

0
Tracking grid-level freshwater boundary exceedance along global supply chains from consumption to impact DOI Creative Commons
Siyu Hou, Jingwen Huo, Xu Zhao

et al.

Nature Water, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Language: Английский

Citations

0
Spatiotemporal Disparity of Water Scarcity Risk and Sharing Responsibility: An Integrated Framework for Urban Agglomerations DOI

Zhiwei Luo,

Ling Ji, Yulei Xie

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Changing water quality of a major rainfed river system of western India: insights from the Bhima river using water quality index DOI Creative Commons

Yash Yash,

Anwesha Ghosh, Roshni Arora

et al.

Environmental Research Communications, Journal Year: 2024, Volume and Issue: 6(10), P. 105018 - 105018

Published: Aug. 30, 2024

Abstract The Bhima River originating from the Western Ghats of India, a global biodiversity hotspot, is one most dammed rivers, used intensively for multifaceted purposes including agriculture and domestic usage. present study was undertaken early pre-monsoon to start monsoon 2023 encompassing 68 sampling points across its tributaries develop water quality index (WQI). Environmental parameters SWT, pH, DO, TDS EC were measured in situ during time sampling. Surface samples (1 L) collected estimation dissolved nutrients. concentration oxygen found be below 2 mg l −1 several representing hypoxic conditions riverine system. ranged 55.12 ppm 2983 108.3 μS cm 5939 respectively, indicating significant spatial temporal variations. ammonia (0.05 –14.09 ), nitrate (5.88 1596.16 o- phosphate (0.21 –35.47 ) reactive silicate (36.70 1455.15 indicates possible influx agricultural run-off untreated municipal discharges. Calculations (WQI) using showed ‘bad very bad’ ‘medium good’ along tributaries. In-depth analyses WQI pollution ‘hot-spots’ hints toward urgent implementation basin-level mitigation strategies improvement ecological health Upper basin.

Language: Английский

Citations

0