Hydrochemistry and nutrients determined the distribution of greenhouse gases in saline groundwater

Li, Jiarui; Chen, Qian; Wang, Ting; Wang, Haizhen; Ni, Jinren

doi:10.1016/j.envpol.2021.117383

Cited by 19 publications

(2 citation statements)

References 64 publications

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“…Total dissolved solids (TDS) were recorded, varied from 195-3564 mg/L with an average value of 739 mg/L, and were found inside the acceptable limit recommended by WHO. High TDS in groundwater indicated ion dissolution, which might be credited to progressively depleting salts and minerals over time [47]. Groundwater total hardness (TH) ranged from 13 to 1350 mg/L, with a mean of 316 mg/L.…”

Section: Groundwater Compositionmentioning

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: Groundwater Compositionmentioning

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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“…TDS interpolation map shows an increasing trend in the majority of the study area. The high TDS value in groundwater indicated ion dissolution, which could be attributed to salt and mineral deposition over time (Li et al, 2021). Total hardness (TH) in groundwater ranged from 110 to 322 mg/L in 2015 and from 105 to 640 mg/L in 2021.…”

Section: Water Quality Index (Wqi)mentioning

confidence: 99%

Assessment of landcover impacts on the groundwater quality using hydrogeochemical and geospatial techniques

Iqbal,

Amin,

et al. 2023

Environ Sci Pollut Res

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Groundwater quality is signi cantly impacted by urbanization and land use land cover (LULC) changes.The current study investigated the impact of LULC on groundwater quality in Quetta city, Baluchistan province, Pakistan. During the years 2015 and 2021, a total of 58 groundwater samples were collected from drinking wells for chemical analysis. The hydrogeochemistry of groundwater was investigated using Gibbs diagrams, Piper diagrams, and spatial distribution maps. The water quality trend was depicted using the Wilcox, USSL diagram, and Water Quality Index (WQI) from 2015 to 2021. The LULC analysis of Quetta was carried out on Google Earth Engine's cloud-computing platform using imagery from the Sentinel-2 satellite with low cloud cover (<10%). The LULC data was later used to calculate the rate of landcover conversion between both years 2015 and 2021 which help to identify the spatial distribution of groundwater and assess its vulnerability to pollution. The ndings indicate an increase in the urban and agricultural classes while a decrease in the barren class. Moreover, according to the Piper diagram, groundwater in Quetta was primarily classi ed as CaMgCl type, CaCl type, and NaCl type. The Gibbs diagrams show water-rock interactions and rock weathering as the dominant evolution of hydrogeochemistry. The majority of the groundwater samples in both years were suitable for irrigation, according to the Wilcox diagram, USSL diagram, and other agricultural indices. The WQI demonstrated that the groundwater sources in the area are safe for human consumption; however, in the northern parts, WQI values are declining due to urbanization over six years.

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Degassing of greenhouse gases from groundwater under different irrigation methods: A neglected carbon source in agriculture

Huo,

Gao

2024

Agricultural Water Management

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Hydrochemistry and nutrients determined the distribution of greenhouse gases in saline groundwater

Cited by 19 publications

References 64 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

Assessment of landcover impacts on the groundwater quality using hydrogeochemical and geospatial techniques

Degassing of greenhouse gases from groundwater under different irrigation methods: A neglected carbon source in agriculture

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