Search Results - "Edmunds, W. M."

Geochemistry’s vital contribution to solving water resource problems by Edmunds, W.M.

“…As part of the events celebrating 40 a of IAGC, it is fitting to trace the modern evolution and development of hydrogeochemistry. However, fascination with…”
Get full text

A review of arsenic and its impacts in groundwater of the Ganges-Brahmaputra-Meghna delta, Bangladesh by Edmunds, W M, Ahmed, K M, Whitehead, P G

“…Arsenic in drinking water is the single most important environmental issue facing Bangladesh; between 35 and 77 million of its 156 million inhabitants are…”
Get more information

Groundwater recharge history and hydrogeochemical evolution in the Minqin Basin, North West China by Edmunds, W.M., Ma, Jinzhu, Aeschbach-Hertig, W., Kipfer, R., Darbyshire, D.P.F.

“…The Minqin Basin is a type area for examining stress on groundwater resources in the Gobi Desert, and has been investigated here using a combination of…”
Get full text

The natural (baseline) quality of groundwater: a UK pilot study by Edmunds, W.M., Shand, P., Hart, P., Ward, R.S.

“…Knowledge of the natural baseline quality of groundwaters is an essential prerequisite for understanding pollution and for imposing regulatory limits. The…”
Get full text

Estimating groundwater recharge in a cold desert environment in northern China using chloride by Gates, John B., Edmunds, W. M., Ma, Jinzhu, Scanlon, Bridget R.

“…Understanding sources and rates of recharge to the Badain Jaran Desert in northern China is important for assessing sustainability of the area’s oasis lake…”
Get full text

Palaeoclimate and groundwater evolution in Africa-implications for adaptation and management by EDMUNDS, W. M.

“…Groundwaters of known age contained in major aquifer systems in the African sedimentary basins enable low-resolution (±1000 year) characteristics of past…”
Get full text

Groundwater evolution in the Continental Intercalaire aquifer of southern Algeria and Tunisia: trace element and isotopic indicators by Edmunds, W.M, Guendouz, A.H, Mamou, A, Moulla, A, Shand, P, Zouari, K

“…The geochemical processes taking place along an 800 km flow line in the non-carbonate Continental Intercalaire aquifer (CI) aquifer in North Africa are…”
Get full text

Geochemical evolution of groundwater beneath Mexico City by EDMUNDS, W. M, CARRILLO-RIVERA, J. J, CARDONA, A

“…The geochemical evolution of groundwaters along a 24 km flow beneath Central Mexico City path from the Sierra de las Cruces towards Lake Texcoco has been…”
Get full text

Use of abstraction regime and knowledge of hydrogeological conditions to control high-fluoride concentration in abstracted groundwater: San Luis Potosı́ basin, Mexico by Carrillo-Rivera, J.J, Cardona, A, Edmunds, W.M

“…Significant amounts of fluoride are found in the abstracted groundwater of San Luis Potosı́. This groundwater withdrawal induces a cold, low-fluoride flow as…”
Get full text

Twenty years of groundwater evolution in the Triassic sandstone aquifer of Lorraine: Impacts on baseline water quality by Celle-Jeanton, Hélène, Huneau, Frédéric, Travi, Yves, Edmunds, W.M.

“…The Lorraine Triassic Sandstone Aquifer (LTSA), which has already been the subject of a chemical and radioisotopic study (1979), is used to investigate the…”
Get full text

Hydrogeochemical and isotopic evolution of water in the Complexe Terminal aquifer in the Algerian Sahara by Guendouz, A., Moulla, A. S., Edmunds, W. M., Zouari, K., Shand, P., Mamou, A.

“…The hydrogeochemical and isotopic evolution of groundwaters in the Mio-Pliocene sands of the Complexe Terminal (CT) aquifer in central Algeria are described…”
Get full text

Residence time indicators in groundwater: the East Midlands Triassic sandstone aquifer by Edmunds, W.M, Smedley, P.L

“…The East Midlands Triassic (Sherwood Sandstone) aquifer which has been the subject of detailed radiometric age studies, is used to investigate both inert and…”
Get full text

Sand, salt and water in the Stampriet Basin, Namibia : calculating unsaturated zone (Kalahari dunefield) recharge using the chloride mass balance approach by Stone, A.E.C., Edmunds, W.M.

“…Estimating groundwater recharge rates in the Stampriet Basin is important for assessing the sustainability of the groundwater resource both within south-east…”
Get full text

Nitrogen in interstitial waters in the Sahel; Natural Baseline, Pollutant or Resource? by Deans, J.D, Edmunds, W.M, Lindley, D.K, Gaye, C.B, Dreyfus, B, Nizinski, J.J, Neyra, M, Ingleby, K, Munro, R.C

“…Nitrate in the unsaturated zone between the soil surface and the water table was studied in agroforestry Parklands in north western Senegal by examination of…”
Get full text

Naturally high nitrate concentrations in groundwaters from the Sahel by Edmunds, W.M, Gaye, C.B

“…Nitrate concentrations in excess of 50 to 100 mg L-1 NO3-N are found widely in interstitial waters from unsaturated Quaternary sands in northern Senegal. These…”
Get full text

Unsaturated zone hydrostratigraphies: A novel archive of past climates in dryland continental regions by Stone, A.E.C., Edmunds, W.M.

“…Natural chemical tracers contained in moisture within unsaturated zone (USZ) sediments have very significant potential as a novel archive of past climate and…”
Get full text

Spatial and temporal distribution of groundwater recharge in northern Nigeria by Edmunds, W, Fellman, E, Goni, I, Prudhomme, C

“…Moisture samples obtained from unsaturated-zone profiles in sands from northern Nigeria were used to obtain recharge estimates using the chloride (Cl)…”
Get full text

Lakes, groundwater and palaeohydrology in the Sahel of NE Nigeria; evidence from hydrogeochemistry by Edmunds, W. M, Fellman, E, Goni, I. B

“…The geochemistry of natural waters from rain, soil, the unsaturated zone, shallow aquifers, lakes and the stratified aquifer system of the Chad Basin sediments…”
Get full text

Naturally-high nitrate in unsaturated zone sand dunes above the Stampriet Basin, Namibia by Stone, A.E.C., Edmunds, W.M.

“…Elevated groundwater nitrate levels are common in drylands, often in excess of WHO guidelines, with concern for human and animal health. In light of recent…”
Get full text

Unsaturated zones as archives of past climates: toward a new proxy for continental regions by Edmunds, W, Tyler, S

“…Natural chemical and isotopic tracers contained in unsaturated-zone moisture profiles are being developed as potential new archives for reconstructing recharge…”
Get full text