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Full-Text Articles in Life Sciences
Suitability Assessment Of Groundwater Quality For Drinking Purposes, Md. Zahidul Islam, M. G. Mostafa
Suitability Assessment Of Groundwater Quality For Drinking Purposes, Md. Zahidul Islam, M. G. Mostafa
Journal of Environmental Science and Sustainable Development
The groundwater status of Northwestern Bangladesh is a complex and challenging issue due to its arid and semi-arid climates, increasing population, overexploitation for domestic and irrigation purposes, lack of adequate rainfall, and limited water resources. The study aimed to assess the suitability and health risk of groundwater quality for drinking purposes. A total of one hundred groundwater samples were collected from shallow tubewells in two seasons, the monsoon (MON) and post-monsoon (POM), in northwestern Bangladesh (Ganges River basin) and analyzed using standard methods of analysis (Atomic adsorption spectrometry, UV-visible spectrometry, graphite, ion chromatography). The trends of predominant cations were Ca2+ …
Impact Of Excessive Pumping On Groundwater Quality: The Arsenic Problem Of The Ganges–Meghna–Brahmaputra Delta In Southeast Asia, Rhitwik Chatterjee, Mousumi Chowdhury
Impact Of Excessive Pumping On Groundwater Quality: The Arsenic Problem Of The Ganges–Meghna–Brahmaputra Delta In Southeast Asia, Rhitwik Chatterjee, Mousumi Chowdhury
Journal of Environmental Science and Sustainable Development
This review of the impact of large-scale pumping on arsenic distribution reveals that groundwater-fed irrigation and domestic withdrawal impart tremendous stress on the limited groundwater resource base and disrupts the dynamic equilibrium of the groundwater system of the Ganges–Meghna–Brahmaputra (GMB) delta in Southeast Asia. Excessive groundwater extraction through pumping affects the groundwater quality in three major ways. First, excessive pumping transports atmospheric oxygen and organic-rich surface water to the subsurface. Second, it promotes arsenic build up in surface soil irrigated with arsenic-laced groundwater. Finally, it shifts groundwater replenishment zones lying at various depths near extraction points, thus, carrying dissolved arsenic …
Hydrogeology Of Hanging Bog State Preserve: The Role Of Hillside Seeps In Draining The Iowan Surface, William L. Niemann
Hydrogeology Of Hanging Bog State Preserve: The Role Of Hillside Seeps In Draining The Iowan Surface, William L. Niemann
Journal of the Iowa Academy of Science: JIAS
Along the margin of the Cedar River Valley, groundwater discharges from eroded and weathered glacial materials of the Iowan Surface to modern alluvial deposits of the valley floor. Hanging Bog State Preserve, located along this topographic, geologic, and hydrologic boundary, represents one such groundwater discharge location, in the form of a perennial hillside seep. Based on detailed monitoring of surface water and groundwater levels within the preserve for a one-year period, it is shown that a significant quantity of groundwater, collected from a disproportionately large recharge area, is funneled to the valley wall at this site and subsequently carried to …