Impact of hydrogeochemical processes and its evolution in controlling groundwater chemistry along the east coast of Tamil Nadu and Puducherry, India

Khan, A. Faizal; Srinivasamoorthy, K.; Prakash, R.; Gopinath, S.; Cheelil, Rabina

doi:10.1007/s11356-020-10912-y

Cited by 29 publications

(5 citation statements)

References 56 publications

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“…The deviation from the 1:1 line (Figure 4a) is accredited to the silicate weathering and ion exchange, such as the dissolution of albite might be responsible for increasing Na + in groundwater if halite dissolution is the sole source of sodium. Hydro-geochemistry was governed by the association between aquifer lithology and penetrating water in the sub-surface [74]. The samples distribution along the equilibrium line of Ca 2+ and Mg 2+ against HCO 3 − + SO 4 2− (Figure 4b) plot revealed the influence of carbonate dissolution for Ca 2+ and Mg 2+ distributions of the samples along the equilibrium line of Ca 2+ + Mg 2+ versus HCO 3 − + SO 4 2− plot recommended that the effect of carbonate dissolution for Ca 2 + Mg 2+ .…”

Section: Silicate Weatheringmentioning

confidence: 99%

Hydrogeochemical Investigation of Elevated Arsenic Based on Entropy Modeling, in the Aquifers of District Sanghar, Sindh, Pakistan

Ullah

Talib

Rashid

et al. 2021

Water

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Arsenic (As) contamination in drinking groundwater is a common environmental problem in Pakistan. Therefore, sixty-one groundwater samples were collected from various groundwater sources in District Sanghar, Sindh province, Pakistan, to understand the geochemical behavior of elevated As in groundwater. Statistical summary showed the cations and anions abundance in decreasing order of Na+ > Ca2+ > Mg2+ > K+, and HCO3− > Cl− > SO42− > NO3−. Arsenic was found with low to high concentration levels ranging from 5 µg to 25 µg/L with a mean value of 12.9 µg/L. A major water type of groundwater samples was mixed with NaCl and CaHCO3 type, interpreting the hydrochemical behavior of rock–water interaction. Principal component analysis (PCA) showed the mixed anthropogenic and natural sources of contamination in the study area. Moreover, rock weathering and exchange of ions controlled the hydrochemistry. Chloro-alkaline indices revealed the dominance of the reverse ion exchange mechanism in the region. The entropy water quality index (EWQI) exposed that 17 samples represent poor water, and 11 samples are not suitable for drinking.

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Section: Silicate Weatheringmentioning

confidence: 99%

Hydrogeochemical Investigation of Elevated Arsenic Based on Entropy Modeling, in the Aquifers of District Sanghar, Sindh, Pakistan

Ullah

Talib

Rashid

et al. 2021

Water

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“…The correlation coe cient of r > 0.5 and − 0.5 were considered as strongly positive correlation and weakly negative correlation respectively.EC and TDS showed a very high to almost perfect correlation (0.85). This shows the absence of less soluble charged elements in groundwater that contributes to the total dissolve solids (Khan et al,2020). The correlation of Na + /Mg 2+ (0.50), K + /Ca 2+ (0.85), Na + /HCO 3 (0.51), Mg 2+/ HCO 3 (0.69), Ca 2+ /NO 3 (0.54),K + /Cl − (0.76), and Ca 2+/ Cl − (0.87) indicates the varied processes controlling the groundwater chemistry in the study area is Silicate weathering and cationexchange being the main processes contributing for the Na + ions.…”

Section: Cai= ………………………………………………………………………………………8mentioning

confidence: 92%

Hydrogeochemical characterization of ground and surface water in the Eastern part of the Adamawa-Yade Domain, Bertoua-Cameroon

Nelson

Wotany

Agyingi

et al. 2023

Preprint

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Groundwater and surface water are major sources of water supply to the inhabitants of Bertoua. Hydrogeochemical study was conducted in the study area aimed at identifying the processes that control the chemistry of groundwater sources and to examine the quality of the water sources fordomestic and agricultural purposes. Fifty water samples were collected from boreholes, open wells, springs, and rivers within the study area in January 2022 (the dry season). The samples were analyzed for physicochemical characteristics including pH, electrical conductivity (EC), total dissolved solids(TDS) and major ions. The water samples were acidic with 94% of pH values less than 6.5. The EC varied from 21-776 µS/cm and TDS (8.5-388 mg/l).The low EC and TDS indicate low mineralization and fresh water. The relative abundance of major ions (meg/l) was Ca2+> Mg2+> K+>Na+ for cations and HCO3- >CL->NO3>SO4-for anions. These major ions concentrations were low and within the WHO guideline values for drinking water. From Piper diagram two dominant water facies were observed; Ca-Cl and CaHCO3 with some samples plotting in mixed CaMgCl. Rock-water interaction, ion exchange, silicate weathering and anthropogenic activities were the processes responsible for the groundwater chemistry with some minor evaporative effects. These major ions concentrations were low and within the WHO guideline values for drinking water.Based on Sodium Adsorption Ratio and Residual Sodium Bicarbonate all samples fall in the excellent category for agriculture.

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“…Generally, elevated levels of NO 3 ¯ and TDS indicate the presence of anthropogenic in uences within a speci c area(Sunkari et al 2019). The higher concentrations of NO 3 ¯ in groundwater can be attributed to agricultural practices involving the wider application of fertilizers(Ali et al 2021)(Khan et al 2021). Field observations and land use indicated that sewage and chemical fertilizer are more likely to be the main origin of elevated NO 3 ¯ levels in the investigated study area.…”

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confidence: 89%

Assessing hydro-chemical evolution of groundwater in Balkh Center (Mazar-e-Sharif), northern Afghanistan using an integrated approach

Farahmand,

Zaryab,

Ameri

et al. 2024

Preprint

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Groundwater in Afghanistan stands as the predominant water source employed for potable consumption, household utilization, agricultural irrigation, and industrial applications. Major cities of Afghanistan are largely dependent on groundwater resources. However, the groundwater quality of major cities in Afghanistan was not investigated in detail. In this study, we investigated Mazar-e-Sharif city of northern Afghanistan intending to identify the major hydrogeochemical processes controlling groundwater chemistry and evaluate the groundwater quality of Mazar-e-Sharif using an integrated approach. We found that 1) The prevailing groundwater within the study area are predominantly characterized by Na-(Ca)-HCO3 and Ca-(Mg)-SO4 water types. 2) Physicochemical variables such as NO3¯, F¯, TDS, and SO42− exceeded the World Health Organization (WHO) safe limits in many wells. 3) Weathering of silicates and cation exchange are the main hydrogeochemical processes controlling hydro-geochemistry in the aquifer. 4) The high salinity observed in the groundwater of Mazar-e-Sharif is likely attributed to a combination of geogenic and natural factors and the Cl/Br ratios suggest that salinity may originate from evaporitic lacustrine and evaporite deposits. The findings of this study hold value for decision-makers in formulating a proficient strategy for the management of groundwater resources in Mazar-e-Sharif City in achieving the UN sustainable goal (SDG) of providing sustainable water for all.

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Impact of hydrogeochemical processes and its evolution in controlling groundwater chemistry along the east coast of Tamil Nadu and Puducherry, India

Cited by 29 publications

References 56 publications

Hydrogeochemical Investigation of Elevated Arsenic Based on Entropy Modeling, in the Aquifers of District Sanghar, Sindh, Pakistan

Hydrogeochemical Investigation of Elevated Arsenic Based on Entropy Modeling, in the Aquifers of District Sanghar, Sindh, Pakistan

Hydrogeochemical characterization of ground and surface water in the Eastern part of the Adamawa-Yade Domain, Bertoua-Cameroon

Assessing hydro-chemical evolution of groundwater in Balkh Center (Mazar-e-Sharif), northern Afghanistan using an integrated approach

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