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Qu S, Zhao Y, Zhang K, Wang J, Li M, Yang X, Ren X, Hao Y, Yu R. Multi-isotopes (δD, δ 18O water, 87Sr/ 86Sr, δ 34S and δ 18O sulfate) as indicators for groundwater salinization genesis and evolution of a large agricultural drainage lake basin in Inner Mongolia, Northwest China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174181. [PMID: 38917902 DOI: 10.1016/j.scitotenv.2024.174181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 06/16/2024] [Accepted: 06/20/2024] [Indexed: 06/27/2024]
Abstract
Groundwater salinization, a major eco-environmental problem in arid and semi-arid areas, can accelerate soil salinization, reducing crop productivity and imbalances in ecosystem diversity. This study classified water samples collected from the Ulansuhai Lake basin into five clusters using self-organizing maps (SOM). On this basis, multiple isotopes (δ18Owater, δD, 87Sr/86Sr, δ18Osulfate and δ34S) and isotopic models (Rayleigh fractionation and Bayesian isotope mixing models) were used to identify and quantify the genesis and evolution of groundwater salinization. The results showed that the samples were brackish or saline water, and the hydrochemical types were dominated by Na + K-Cl (SO4). It has been proved that the processes associated with groundwater salinization in the Ulansuhai Lake basin were dominated by water-rock interaction and human inputs. Among them, evaporite dissolution contributed substantially to groundwater salinity. Furthermore, salt inputs from human activities cannot be negligible. Based on the model calculations, evaporite dissolution accounted for the most significant proportion of all sources, with a mean value of 53 %. In addition, human inputs from regular agricultural activities (28 % from sewage and manure and 8 % from fertilizers) constituted another vital source of groundwater salinization associated with extensive agricultural activities in the study area. This study's results can deepen our understanding of the genesis of groundwater salinization and the evolution of the agricultural drainage lake basin. This knowledge will assist the Environmental Protection Department in developing effective policies for groundwater management in the Yellow River Basin.
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Affiliation(s)
- Shen Qu
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China.
| | - Yuanzhen Zhao
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Keyi Zhang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Juliang Wang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Muhan Li
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Xu Yang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Xiaohui Ren
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Yanling Hao
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Ruihong Yu
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China.
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Padilla-Reyes DA, Dueñas-Moreno J, Mahlknecht J, Mora A, Kumar M, Ornelas-Soto N, Mejía-Avendaño S, Navarro-Gómez CJ, Bhattacharya P. Arsenic and fluoride in groundwater triggering a high risk: Probabilistic results using Monte Carlo simulation and species sensitivity distribution. CHEMOSPHERE 2024; 359:142305. [PMID: 38740338 DOI: 10.1016/j.chemosphere.2024.142305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/01/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
The widespread presence of arsenic (As) and fluoride (F-) in groundwater poses substantial risks to human health on a global scale. These elements have been identified as the most prevalent geogenic contaminants in groundwater in northern Mexico. Consequently, this study aimed to evaluate the human health and ecological risks associated with the content of As and F- in the Meoqui-Delicias aquifer, which is in one of Mexico's most emblematic irrigation districts. Concentrations of As and F- were measured in 38 groundwater samples using ICP-MS and ion chromatography, respectively. Overall, these elements showed a similar trend across the aquifer, revealing a positive correlation between them and pH. The concentration of As and F- in the groundwater ranged from 5.3 μg/L to 303 μg/L and from 0.5 mg/L to 8.8 mg/L, respectively. Additionally, the levels of As and F- surpassed the established national standards for safe drinking water in 92% and 97% of samples, respectively. Given that groundwater is used for both agricultural purposes and human activities, this study also assessed the associated human health and ecological risks posed by these elements using Monte Carlo simulation and Species Sensitivity Distribution. The findings disclosed a significant noncarcinogenic health risk associated with exposure to As and F-, as well as an unacceptable carcinogenic health risk to As through water consumption for both adults and children. Furthermore, a high ecological risk to aquatic species was identified for F- and high to medium risks for As in the sampling sites. Therefore, the findings in this study provide valuable information for Mexican authorities and international organizations (e.g., WHO) about the adverse effects that any exposure without treatment to groundwater from this region represents for human health.
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Affiliation(s)
- Diego A Padilla-Reyes
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Jaime Dueñas-Moreno
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Jürgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico.
| | - Abrahan Mora
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Manish Kumar
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico; Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India
| | - Nancy Ornelas-Soto
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Sandra Mejía-Avendaño
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Carmen J Navarro-Gómez
- Faculty of Engineering, Autonomous University of Chihuahua, Circuito Universitario, 31109, Campus Uach II, Chihuahua, Chih, C.P. 31125, Mexico
| | - Prosun Bhattacharya
- KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, SE-114 28, Stockholm, Sweden
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Mingyue L, Xuejun S, Shengnan L, Jie W, Zijian L, Qianggong Z. Hydrochemistry dynamics in a glacierized headwater catchment of Lhasa River, Tibetan Plateau. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170810. [PMID: 38336076 DOI: 10.1016/j.scitotenv.2024.170810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/26/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
Mountain glaciers are essential for supplying water resources that sustain downstream communities and livelihoods, yet the hydrogeochemical dynamics at glacier terminals and the impact of glacier retreat on downstream water chemistry are not fully understood. This study addresses this by conducting comprehensive observations and analysis of water chemistry at refined spatial and temporal resolutions in the Lhasa River Valley Glacier No. 1 (LRVG-1) catchment, a vital source of drinking and irrigation water for the local population on the Tibetan Plateau. Our findings reveal a weakly alkaline water environment within this glacierized basin, with HCO3- and Ca2+ as the dominant anions and cations, respectively, resulting in a hydrochemical pattern classified as HCO3--Ca2+ type. Solute concentrations increase along the glacier meltwater pathway, influenced by water-rock interaction, dilution, and diverse sources. The cations are predominantly from carbonate weathering, constituting 72.86 % of the total cations, followed by sulfide oxidation (11.08 %), glacier meltwater inputs (8.13 %), and silicate weathering (7.93 %). The contribution of cations from glacier meltwater diminishes as they travel along the glacier meltwater flow pathway. Our study indicates the localized yet significant impact of glacier meltwater on hydrochemistry, particularly in the vicinity of the glacier terminus. We recommend considering glacial meltwater and the entire glacier watershed as a continuum, essential for understanding the cumulative effects of glacier melt and human activities on water quality. This perspective is crucial for predicting future river chemistry trajectories in high-mountain basins and informing policy-making for water quality conservation across the Tibetan Plateau.
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Affiliation(s)
- Li Mingyue
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sun Xuejun
- School of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China
| | - Li Shengnan
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wang Jie
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Zijian
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhang Qianggong
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Lhasa Earth System Multi-Dimension Observatory Network (LEMON), Lhasa 850000, China.
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Ren X, Yu R, Wang R, Kang J, Li X, Zhang P, Liu T. Tracing spatial patterns of lacustrine groundwater discharge in a closed inland lake using stable isotopes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120305. [PMID: 38359630 DOI: 10.1016/j.jenvman.2024.120305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024]
Abstract
Tracing lacustrine groundwater discharge (LGD) is essential for understanding the hydrological cycle and water chemistry behaviour of lakes. LGD usually exhibits large spatial variability, but there are few reports on quantitatively revealing the spatial patterns of LGD at the whole lake scale. This study investigated the spatial patterns of LGD in Daihai Lake, a typical closed inland lake in northern China, based on the stable isotopes (δ2H and δ18O) of groundwater, surface water, and sediment pore water (SPW). The results showed that there were significant differences between the δ2H and δ18O values of different water bodies in the Daihai Lake Basin: groundwater < SPW < lake water. The LGD through SPW was found to be an important recharge pathway for the lake. Accordingly, stable isotopes of SPW showed that LGD in the northeastern and northwestern of Daihai Lake was significantly greater both horizontally and vertically than that in the other regions, and the proportions of groundwater in SPW in these two regions were 55.53% and 29.84%, respectively. Additionally, the proportion of groundwater in SPW showed a significant increase with profile depth, and the proportion reached 100% at 50 cm below the sediment surface in the northeastern of the lake where the LGD intensity was strongest. The total LGD to Daihai Lake was 1.47 × 107 m3/a, while the LGD in the northeastern and northwestern of the lake exceeded 1.9 × 106 m3/a. This study provides new insights into assessing the spatial patterns of LGD and water resource management in lakes.
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Affiliation(s)
- Xiaohui Ren
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Ruihong Yu
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China; Key Laboratory of Mongolian Plateau Ecology and Resource Utilization, Ministry of Education, Hohhot, 010021, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China.
| | - Rui Wang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Jianfang Kang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Xiangwei Li
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Pengxuan Zhang
- Inner Mongolia Key Laboratory of River and Lake Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Tingxi Liu
- Inner Mongolia Water Resource Protection and Utilization Key Laboratory, Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China
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Liu G, Guo L, Wang C, Liu J, Hu Z, Dahlke HE, Xie E, Zhao X, Huang G, Niu J, Fa K, Zhang C, Huo Z. Revealing the infiltration process and retention mechanisms of surface applied free DNA tracer through soil under flood irrigation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167378. [PMID: 37758151 DOI: 10.1016/j.scitotenv.2023.167378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/31/2023] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
It has been recently demonstrated that free DNA tracers have the potential in tracing water flow and contaminant transport through the vadose zone. However, whether the free DNA tracer can be used in flood irrigation area to track water flow and solute/contaminant transport is still unclear. To reveal the infiltration process and retention mechanisms of surface applied free DNA tracer through soil under flood irrigation, we tested the fate and transport behavior of surface applied free DNA tracers through packed saturated sandy soil columns with a 10 cm water head mimicking flood irrigation. From the experimental breakthrough curves and by fitting a two-site kinetic sorption model (R2 = 0.83-0.91 and NSE = 0.79-0.89), adsorption/desorption rates could be obtained and tracer retention profiles could be simulated. Together these results revealed that 1) the adsorption of free DNA was dominantly to clay particles in the soil, which took up 1.96 % by volume, but took up >97.5 % by surface area and densely cover the surface of sand particles; and 2) at a pore water pH of 8.0, excluding the 4.9 % passing through and 3.1 % degradation amount, the main retention mechanisms in the experimental soil were ligand exchange (42.0 %), Van der Waals interactions (mainly hydrogen bonds), electrostatic forces and straining (together 44.7 %), and cation bridge (5.3 %). To our knowledge, this study is the first to quantify the contribution of each of the main retention mechanisms of free synthetic DNA tracers passing through soil. Our findings could facilitate the application of free DNA tracer to trace vadose zone water flow and solute/contaminant transport under flood irrigation and other infiltration conditions.
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Affiliation(s)
- Geng Liu
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Linxi Guo
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Chaozi Wang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
| | - Jiarong Liu
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Zengjie Hu
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Helen E Dahlke
- Department of Land, Air, and Water Resources, University of California, Davis, Davis, CA 95616, USA
| | - En Xie
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Xiao Zhao
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Guanhua Huang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Jun Niu
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Keyu Fa
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Chenglong Zhang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Zailin Huo
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
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Tang L, Yao R, Zhang Y, Ding W, Wang J, Kang J, Liu G, Zhang W, Li X. Hydrochemical analysis and groundwater suitability for drinking and irrigation in an arid agricultural area of the Northwest China. JOURNAL OF CONTAMINANT HYDROLOGY 2023; 259:104256. [PMID: 37865976 DOI: 10.1016/j.jconhyd.2023.104256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
Groundwater is the foremost water source in the arid and semiarid regions of Northwest China. Assessing groundwater's drinking and irrigation quality is essential for protecting these valuable groundwater resources. In this study, a total of 24 confined groundwater samples and 54 phreatic groundwater samples were collected in the southern and central Ningxia area for hydrochemical analysis and quality assessment. The hydrochemical results revealed that hydrochemical types of phreatic and confined groundwater consistently belonged to Na-SO4-Cl and Na-Mg-SO4-Cl types. The driving forces of groundwater chemistry were determined by gypsum dissolution, silicate dissolution, and positive cation exchange for phreatic and confined aquifers. The entropy-weighted water quality index (EWQI) and irrigation water quality index (IWQI) showed that the drinking water quality and irrigation quality were better in phreatic groundwater than in confined groundwater due to the Neogene-Paleogene groundwater system recharge and strong evaporation. Measures such as controlling groundwater extraction and optimizing well placement need to be implemented. The achievements would be helpful for groundwater management and protection in agricultural areas under semi-arid and arid climates.
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Affiliation(s)
- Lijun Tang
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
| | - Rongwen Yao
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Yunhui Zhang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China; Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education of China, Beijing Normal University, Beijing 100875, China.
| | - Wenming Ding
- Mineral Geological Survey Institute of Ningxia Hui Autonomous Region, Yinchuan 750000, China
| | - Jing Wang
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
| | - Jinhui Kang
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
| | - Guihuan Liu
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
| | - Wei Zhang
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
| | - Xiaohui Li
- Ningxia Survey and Monitoring Institute of Land and Resources, Yinchuan 750000, China
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