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Article
Engineering, Civil
Chuanshun Zhi et al.
Summary: Hydrogeochemical studies in the lower flood plain of the Yellow River, China, revealed that high-F and high-I groundwater is mainly found in the ancient alluvial plain and alluvial-lacustrine plain, with high total dissolved solids. Groundwater F- originates from geogenic sources, while I- enrichment is likely due to alluvial-lacustrine sediments and reduction reactions.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
M. K. Shaabani et al.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Manoj Shanmugamoorthy et al.
Summary: Various human activities have the potential to contaminate groundwater, which can be influenced by the characteristics of aquifers, rocks, and soils, as well as the presence of pollutants. Water from the Orathuppalayam Dam contaminates villages in Tirupur District whenever it rains. The DRASTIC-LU index reveals that high and very high vulnerability zones are more susceptible to groundwater contamination.
Article
Environmental Sciences
Arthur B. Koon et al.
Summary: To protect groundwater resources and improve the quality of life, it is important to consider all potential polluting activities. Groundwater potential research in Liberia only covers 5% of Montserrado County. However, there is no existing study on the vulnerability of the aquifer to pollution. This study aims to assess groundwater vulnerability in Greater Monrovia by developing a groundwater vulnerability map using GIS.
Article
Environmental Sciences
Hamid Kardan Moghaddam et al.
Summary: This study evaluated the vulnerability of aquifers to nitrate concentration variations using modeling, with results showing most wells facing increased concentrations, particularly in lower areas of agricultural and urban lands. The prediction map was used to calibrate the vulnerability index, with central aquifer parts downstream of agricultural and urban areas showing the highest vulnerability degree. Correlation analysis demonstrated improved accuracy in identifying areas susceptible to development with reduced vulnerability.
GEOCARTO INTERNATIONAL
(2022)
Article
Environmental Sciences
Yong Xiao et al.
Summary: The study reveals that the changes in groundwater chemistry are driven by both water-rock interaction and anthropogenic influences. Anthropogenic inputs/influences are the dominant factors increasing groundwater nitrate content and salinity, posing potential noncarcinogenic risks to various populations through oral intake pathway. Rational measures should be taken to protect groundwater quality out of the threats of anthropogenic pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Osama Gazal et al.
Summary: Groundwater vulnerability models are useful tools for simulating groundwater sustainability in arid areas. Sensitivity tests are conducted to modify weights and avoid subjective evaluations. Comparison with other models indicates the appropriate use of DRASTIC in arid areas.
INTERNATIONAL JOURNAL OF HYDROLOGY SCIENCE AND TECHNOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Yong Xiao et al.
Summary: Groundwater nitrate contamination is a global issue that threatens water supply, especially in arid and semiarid piedmonts. An extensive hydrogeochemical investigation was conducted in a heavily human-impacted semiarid piedmont in North China. The study found that the groundwater in this area is alkaline and has high variations of salinity. The concentration of nitrate in the groundwater exceeds the permissible limit recommended by the World Health Organization. Anthropogenic inputs from residential land usage are responsible for the nitrate enrichment and salinity increase. The study also assessed the non-carcinogenic risks posed by nitrate, nitrite, and ammonia through dermal and oral pathways for different population groups. The findings indicate that all population groups are at risk, with minors being more susceptible. Measures such as improving awareness, environmental protection, and targeted water treatment are recommended for sustainable groundwater resource development in arid and semiarid piedmonts.
Article
Engineering, Civil
Sara Barbieri et al.
Summary: Geothermal resource exploitation has shown constant growth in recent years, with low-temperature geothermal energy being used as a cost-effective and green solution for building air conditioning. The design of BHE and correct interpretation of TRT are crucial for meeting building energy demand.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Environmental
Yongge Zang et al.
Summary: This study established a quasi-3D feedback model to quantitatively evaluate the effects of groundwater level (GWL) recovery on nitrate-N leaching fluxes and groundwater nitrate-N dynamics. The results showed that GWL recovery increased the nitrate-N leaching fluxes into the aquifer by 44.4% and the average groundwater nitrate-N concentration by approximately 2.4 mg/L.
Article
Chemistry, Multidisciplinary
Abdelmadjid Boufekane et al.
Summary: This study proposed a new approach integrating groundwater vulnerability method and a numerical model to predict groundwater resource sustainability in the semi-arid region of Tebessa-Morsott alluvial aquifer in northeast Algeria. The DRASTIC model and MODFLOW code were used to evaluate groundwater vulnerability and calculate groundwater level dynamics, showing a close relationship between groundwater vulnerability variation and depth variation caused by pumping rate over time.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Somayeh G. Esfahani et al.
Summary: The study suggests that low permeability zones can become major sources of groundwater contamination after remediation, and slow back diffusion from these zones can extend the management of polluted sites. Numerical models are commonly used to simulate back diffusion, estimate cleanup times, and develop site management strategies. The development of a new approach using MODFLOW/RT3D can potentially improve computational efficiency by modeling pollutant back diffusion without the need for fine discretization of the low permeability zones.
JOURNAL OF CONTAMINANT HYDROLOGY
(2021)
Article
Engineering, Civil
Ali Sharifinejad et al.
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH
(2020)
Article
Engineering, Environmental
Maryam Malekzadeh et al.
GROUNDWATER FOR SUSTAINABLE DEVELOPMENT
(2019)
Article
Engineering, Civil
F. A. L. Pacheco et al.
JOURNAL OF HYDROLOGY
(2018)
Article
Engineering, Civil
Carmelo Grimaldi et al.
JOURNAL OF HYDRAULIC ENGINEERING
(2009)
Article
Water Resources
Laura K. Lautz et al.
ADVANCES IN WATER RESOURCES
(2006)
Article
Public, Environmental & Occupational Health
PJ Weyer et al.
