Large scale occurrence of aluminium-rich shallow groundwater in the Pearl River Delta after the rapid urbanization: Co-effects of anthropogenic and geogenic factors

Huang, Guanxing; Hou, Qinxuan; Han, Dongya; Liu, Ruinan; Song, Jiangmin

doi:10.1016/j.jconhyd.2022.104130

Cited by 20 publications

(14 citation statements)

References 40 publications

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“…Cl − is characterized by mobility commonly distributed in all types of rocks from the geological strata of boreholes. The presence of Cl − in drinking water is essential for electrolyte balance, while a high amount increases the potential chemical aggressiveness [ 50 ]. Water–rock (magmatic rock dissolution) and water–soil interaction, the use of intense chemical fertilizers, irrigation, wastewater infiltration, domestic sewage and waste deposit leakage are sources of high amounts of Cl − [ 47 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

“…Al ranged between 1.3 and 5.1 µg/L, with sources related to mining waste generally present in the mountain areas of Romania or acid rain dissolving minerals from soil and leaking to groundwater sources. If consumed, bioaccumulation of Al, known as a neurotoxin, in humans could affect the nervous system (sclerosis, Parkinson, Alzheimer), but also liver, brain, heart and bone systems, and could cause anaemia, asthma and gastrointestinal inflammation [ 50 , 57 ]. According to Weisner et al [ 57 ] waters with amounts of Al of 0.1 mg/L day −1 and higher than 0.1 mg/L day −1 , in the case of elder people, could increase the risk of cognitive impairment.…”

Section: Resultsmentioning

confidence: 99%

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Chemical Assessment of Drinking Water Quality and Associated Human Health Risk of Heavy Metals in Gutai Mountains, Romania

Dippong,

Resz

2024

Toxics

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Chemical data compiled from field and laboratory studies were analysed on drinking water sources from a mountain area (Gutai Mountains) in Romania. Six physico-chemical indicators, nine anions, and twenty-one metals were determined and analysed. The results of this study showed that waters are generally rich in NH4+ and NO2−, exceeding the recommended limit of 0.5 mg NH4+/L, while some waters are rich in As, Cd, Mn and Pb, but with concentrations below the limits concerning the use of waters with drinking purposes. The applied heavy metal pollution indices (scores: 0.56–47.9) indicate that more than 50% of samples are characterized by medium pollution degrees. Based on the results obtained, it was determined that geological and human activities were influential in enriching the studied waters with the chemicals considered. Emphasizing this aspect related to pollution sources and the importance of a clean chemical status that must characterize waters used for drinking purposes, a human health risk assessment for heavy metals was implemented. The results indicated that even though the studied waters are rich in heavy metals, scores related to the risk assessment of heavy metals indicated a lack of non-carcinogenic risks for As, Mn, Cd and Cu. Nevertheless, this study and the results obtained are significant at national and international levels by offering a perspective on determining the potential pollution and associated human health risks at heavy metals in drinking water sources from a mountain area.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Chemical Assessment of Drinking Water Quality and Associated Human Health Risk of Heavy Metals in Gutai Mountains, Romania

Dippong,

Resz

2024

Toxics

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“…The anomalous presence of heightened chlorine levels in a singular well, as opposed to others within the same town, underscores the complexity of localized water quality dynamics. Chlorides (salts of metals with hydrochloric acid), indicative of water salinity, are essential for the body's electrolyte balance, but excessive salinity renders water unsuitable for drinking due to potential chemical aggressiveness [35]. PO 4 3− are lower than 0.4 mg/L, with potential sources represented by the intense use of fertilizers and detergents, but also with geogenic origin.…”

Section: Physico-chemical Characteristics Of Groundwater Samplesmentioning

confidence: 99%

“…To prevent potential health risks, it is essential to implement risk factors for water sources characterized by high concentrations of contaminants [34]. Recent investigations in Nigeria, Algeria, Iran, Kenya, Thailand, Bulgaria, Slovakia, and Romania have shown high levels of non-carcinogenic outcomes for chemical elements including Ni, Hg, Cd, Pb, As, and nitrogen pollutants (NO 3 − , NO 2 − , and NH 4 + ), which are prevalent in groundwater due to activities like household, agricultural, and industrial processes, carrying the potential to trigger cancer or methemoglobinemia [35].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Groundwater Metal and Arsenic Content in Piatra, North-West of Romania

Dippong,

Mihali,

Avram

2024

Water

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The present study introduces a monitoring initiative focused on the quality of groundwater in the Piatra locality, situated in the North-West region of Romania. This paper employs an evaluation of 21 physico-chemical parameters, encompassing factors such as electrical conductivity, pH, chemical oxygen demand, turbidity, total hardness, NH4+, NO3−, Cl−, PO43−, Li, Na, K, Ca, Mg, Ba, Sr, Al, Fe, Mn, Sn, and Ti. Additionally, it examines five heavy metals (Cr, Cu, Ni, Pb, and Zn) and arsenic in water sourced from six distinct private wells. Each well, with its characteristics, serves as a unique drinking water source. The assessment encompassed the evaluation of pollution levels, quality status, and risk factors for all drinking water sources, utilizing pollution, quality, and risk indices. The aim of this study was to establish the level of toxicity in water, assess its impact on human health, and disseminate information to the public about the appropriate utilization of individual water sources. The results indicated a general contamination with chloride, ammonium, manganese, chromium, and iron. Human health risk assessment indices revealed that the consumption of studied waters presented non-carcinogenic risks associated with Cr for adults and with Cr, As, Pb, and Cu for children for some of the groundwater sources. The water quality index (WQI) categorizes the samples as possessing excellent and good quality. This research represents one of the initial endeavors to assess the groundwater source quality in connection with the potential human health risks posed by the metals studied within the protected area of the Tisa River Basin.

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“…The PCA reduces high dimensional space into a smaller number of dimensions called principal components (PCs) by linearly combining measurements [36][37][38]. In this study, the PCA was used to extract the PCs that control the TH in shallow and deep groundwaters in various plains from 12 groundwater chemical parameters [39][40][41]. The units of these parameters were mg/L, except for pH.…”

Section: Principal Components Analysis (Pca)mentioning

confidence: 99%

Distribution and Origins of Hardness in Shallow and Deep Groundwaters of the Hebei Plain, China

Qian,

Zhen,

Yue

et al. 2024

Water

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Elevated hardness concentrations in groundwater have become a noteworthy concern in recent decades because long-term drinking of groundwater with high levels of hardness is an important factor resulting in chronic kidney diseases. In this study, the distribution and origins of groundwater total hardness (TH) in various sub-plains and different land-use areas of the Hebei Plain (HBP) were investigated. A total of 445 groundwater samples in the HBP were collected once in 2021, and twelve chemical parameters, including TH in groundwater, were analyzed. Results showed that TH-rich (>450 mg/L) shallow groundwater in both the central and littoral plains was more than twice that in the Piedmont plain. Similarly, TH-rich deep groundwater accounted for about 18% in the central plain but was negligible in the Piedmont plain. In the Piedmont plain, TH-rich shallow groundwater in urban areas was twice or more than in other land use types. By contrast, both TH-rich shallow and deep groundwaters in agricultural areas in the central plain were higher than those in rural areas. This was opposite to TH-rich shallow groundwater in the littoral plain. In the Piedmont plain, TH-rich shallow groundwater was mainly attributed to water-rock interaction, groundwater over-extraction, and the infiltration of domestic sewage and animal waste. In the central plain, both TH-rich shallow and deep groundwaters likely ascribed to the evaporite dissolution and seawater intrusion. By contrast, the leaching of agricultural fertilizers resulting in the dissolution of Ca-rich and Mg-rich minerals in the vadose zone was mainly responsible for the occurrence of TH-rich shallow groundwater in the littoral plain. Therefore, in order to limit elevated hardness concentrations in groundwater in the HBP, limiting shallow groundwater extraction and strengthening the supervision of the domestic sewage and animal waste in the Piedmont plain are recommended. Besides, restricting the use of nitrogenous fertilizers in the littoral plain is also recommended.

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Large scale occurrence of aluminium-rich shallow groundwater in the Pearl River Delta after the rapid urbanization: Co-effects of anthropogenic and geogenic factors

Cited by 20 publications

References 40 publications

Chemical Assessment of Drinking Water Quality and Associated Human Health Risk of Heavy Metals in Gutai Mountains, Romania

Chemical Assessment of Drinking Water Quality and Associated Human Health Risk of Heavy Metals in Gutai Mountains, Romania

Evaluating Groundwater Metal and Arsenic Content in Piatra, North-West of Romania

Distribution and Origins of Hardness in Shallow and Deep Groundwaters of the Hebei Plain, China

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