Pollution complexity quantification using NPI and HPI of River Ganga system in Himalayan Region

Matta, Gagan; Kumar, Avinash; Nayak, Anjali; Kumar, Pawan; Gaurav, Pant

doi:10.1007/s43538-022-00111-3

Cited by 15 publications

(4 citation statements)

References 51 publications

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“…Some of such similar potentially toxic elements may include Cd, Cr, Pb, Zn, Cu, and Ni, known for their ecotoxicity, biomagnification, and carcinogenicity when exposed to biota [21]. Excessive use of agrochemicals, untreated wastewater, landfill leaching, inadequate waste disposal, and industrial or chemical spills are some of the major processes that contribute to the concentration of these metals in groundwater [22][23][24]. To ensure groundwater sustainability in water-stressed semi-arid regions, a systematic study on factors contributing to trace metal concentration in groundwater and its impact on groundwater quality is necessary.…”

Section: Introductionmentioning

confidence: 99%

Salinity-Induced Changes in Heavy Metal Behavior and Mobility in Semi-Arid Coastal Aquifers: A Comprehensive Review

Gantayat,

Elumalai

2024

Water

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Semi-arid coastal aquifers face critical challenges characterized by lower rainfall, higher evaporation rates, and looming risk of over-exploitation. These conditions, coupled with climate change, are conducive to seawater intrusion and promote mechanisms associated with it. The understanding of metal behavior in such environments is limited, and hence, an attempt is made through this review to bridge the knowledge gap. A study on the behavior of trace metals within a specific context of semi-arid coastal aquifers was carried out, and 11 aquifers from 6 different countries were included. The review observed that trace metals within semi-arid coastal aquifers exhibit distinctive behaviors influenced by their surrounding environment. The prevalence of evaporation and continuous seawater intrusion played a pivotal role in shaping trace metal dynamics by curtailing groundwater flux. The findings suggest that the formation of stable Cl and organic ligands under increased alkaline conditions (pH > 8) has higher control over Zn, Pb, and Cd toxicity in a highly ionic reactive condition. In addition, dominant control of Fe/Mn-hydroxide association with Pb and high organic affinity of Zn played a pivotal role in controlling its bioavailability in aquifers such as WFB, Saudi Arabia NW-C and India. On the contrary, under prevailing acidic conditions (pH < 6), carbonate and SO4-ligands become more dominant, controlling the bioavailability/desorption of Cu irrespective of its origin. The behavior of Ni is found to be controlled by stable organic ligands increasing salinity. An increase in salinity in the considered aquifers shows an increase in bioavailability of Ni, except UmC, South Africa, where organic ligands act as a sink for the metal, even at low pH conditions (pH < 5.5). This study indicates that factors such as mineral saturation, carbonate complexes, pH variations (pH > 8), and chloride complexes govern the distribution of trace metals further enhanced by prolonged water residence time. Nonetheless, specific conditions, such as a reducing and acidic environment, could potentially elevate the solubility of highly toxic Cr (VI) released from anthropogenic sources.

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Section: Introductionmentioning

confidence: 99%

Salinity-Induced Changes in Heavy Metal Behavior and Mobility in Semi-Arid Coastal Aquifers: A Comprehensive Review

Gantayat,

Elumalai

2024

Water

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“…According to a UN research, 2.1 billion individuals worldwide are denied safe drinking water. Recently, there has been an increase in the need for rising water due to population expansion, growing living standards, and sustainable growth (Shah et al 2019 ; Matta et al 2022a ; Kumar et al 2023a , b ). One of the Millennium Development Goals (MDGs) of the United Nations is access to clean water.…”

Section: Introductionmentioning

confidence: 99%

“…PTEs in groundwater are caused mainly by widespread industry, inadequate wastewater treatment, and a lack of public awareness. According to various studies, a number of variables, such as excessive agrochemicals usage, inadequately treated wastewater, waste disposal locations, chemical spills, etc., result in heavy metal contamination in water supplies (Kale et al 2010 ; Bhuiyan et al 2010 ; Olagunju et al 2017 ; Zhu et al 2020 ; Panaskar et al 2014 ; Matta et al 2022a ; Kumar et al 2023c ).…”

Section: Introductionmentioning

confidence: 99%

“…Numerous parameters include pH, ion concentrations, hydrocarbons, ionic capacity, mineral components’ electronic configuration, the system’s charge density, and metal’s ability to dissolve in water and soil (Musa et al 2013 ). Numerous researchers have shown that trace elements are crucial for plant development, human health, and the mechanics of metal transport (Kale et al 2010 ; Gupta et al 2008 ; Pawar and Nikumbh 1999 ; Bhuiyan et al 2010 ; Kumar et al 2022a , b ). Direct ingestion, inhalation, and dermal absorption via the skin are the three major ways humans are exposed to toxic elements (Duggal and Rani 2018 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of potentially toxic elements in groundwater through interpolation, pollution indices, and chemometric techniques in Dehradun in Uttarakhand State

Nayak

Matta

Uniyal

et al. 2023

Environ Sci Pollut Res

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Providing safe drinking water for the entire world’s population is essential for ensuring sustainable development. The presence of harmful compounds in aquifers, majorly toxic elements, is a serious environmental concern around the globe. This research aimed to quantify for the initial period the amounts of toxic elements in freshwater in the Dehradun Industrial Region of Uttrakhand, India, as well as the associated health risks. The PTEs (potentially toxic elements) Fe, Cd, Mn, Cu, Cr and Pb, Zn, Ni is measured by AAS and compared to BIS and WHO requirements for drinking safety. The order of mean trace element values in all groundwater samples were determined as Fe > Zn > Cu > Ni > Co > Cd > Pb. HPI was discovered to be higher than high class during the research period (HPI > 30), but under the severe contamination criterion of 100. Iron’s MI and PI values were consistently over the threshold limit during the research period, and certain toxic elements were discovered exceptionally near the threshold limit, indicating a severe future influence on groundwater quality. According to PCA (principal component analysis), CM (correlation matrix), and potential health hazard, maximum levels of toxic elements in groundwater in the Dehradun region are attributed to land use patterns, anthropogenic activity, industrial activity, fertilizer and pesticide leaching, and residential waste into the aquifer system. The findings of this study could aid local planners and policymakers in preventing health risks from contaminated aquifers through the deployment of suitable monitoring and mitigation measures.

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Exploring the dynamic microbial tapestry of South Asian rivers: insights from the Ganges and Yamuna ecosystems

Chaturvedi,

Chakraborty,

Min

et al. 2024

Ecohydrology

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This review meticulously examines the dynamics of river microbiomes, with an emphasis on the Ganges and Yamuna rivers of South Asia. These rivers are vital for both ecological and cultural landscapes and offer to understand the interaction between ecological and anthropogenic factors and their impact on microbial communities and activities. Ecological and hydrological factors such as seasonal changes, water flow and physico‐chemical properties of rivers influence microbial diversity and abundance. The effect of heavy metals from industrial and agricultural sources on the river microbiome and how these pollutants modify microbial community structures and ecosystem health are not understood well yet. This underscores the need for sustainable water treatment and remediations for practical engineering solutions. The study reveals how these interactions, whether symbiotic or competitive, affect the composition and functionality of riverine microbial communities. An innovative aspect of our research is the potential of river microbiomes as indicators of urban sewage contamination. We demonstrate how microbial patterns can signal pollution levels, proving valuable for environmental monitoring, management and mitigation. A special attention to the role of microbes in river ecosystems' biogeochemical cycles has been paid to how these microbes contribute to nutrient recycling, organic matter decomposition and overall ecosystem productivity, underlining their crucial role in maintaining the aesthetic value of the river. Additionally, study evaluates the latest methodologies for analysing microbiome metagenomic data, including functional annotation and microbial community analysis techniques. Findings highlight the key importance of understanding river microbiomes for hydrology, ecology and microbiology researchers.

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Pollution complexity quantification using NPI and HPI of River Ganga system in Himalayan Region

Cited by 15 publications

References 51 publications

Salinity-Induced Changes in Heavy Metal Behavior and Mobility in Semi-Arid Coastal Aquifers: A Comprehensive Review

Salinity-Induced Changes in Heavy Metal Behavior and Mobility in Semi-Arid Coastal Aquifers: A Comprehensive Review

Assessment of potentially toxic elements in groundwater through interpolation, pollution indices, and chemometric techniques in Dehradun in Uttarakhand State

Exploring the dynamic microbial tapestry of South Asian rivers: insights from the Ganges and Yamuna ecosystems

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