Results 51 to 60 of about 5,730,086 (191)

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

Chemical agents to control biofilm formation in step 1 of care—Toothpastes and mouthwashes/concepts and challenges

Periodontology 2000, EarlyView.
Abstract Maintaining optimal oral hygiene is important for overall oral care, ensuring the well‐being of teeth and their surrounding tissues. In addition, it promotes fresh breath and a pleasing smile. A key element of oral self‐care is the daily use of toothpaste during regular brushing.
Maud Joosstens, Cees Valkenburg, Fridus Van der Weijden   +2 more
wiley   +1 more source

Disparities in Drinking Water Quality Driven by Geogenic Groundwater Contamination [PDF]

, 2022
In California, up to 46% of the state's total water supply is from groundwater and its geogenic contamination may affect a large area, number of wells, and number of people throughout the state. The presence of geogenic contaminants, such as chromium (Cr)
Aiken, Miranda
core   +1 more source

Pathways and drivers of N

Geoderma
Globally, direct emissions from agricultural activities and land-use changes account for 23 % of the total greenhouse gas (GHG) emissions. In addition, dissolved GHGs leaching from soils via groundwater into streams and rivers represent important sources
Josette Garnier, Antoine Casquin, Gilles Billen, Hocine Henine, Luis Lassaletta, Benjamin Mercier, Anun Martinez, Alberto Sanz-Cobena   +7 more
doaj   +1 more source

Soil processes modify the composition of volatile organic compounds (VOCs) from CO2- and CH4-dominated geogenic and landfill gases: A comprehensive study

Science of The Total Environment
Degradation mechanisms affecting non-methane volatile organic compounds (VOCs) during gas uprising from different hypogenic sources to the surface were investigated through extensive sampling surveys in areas encompassing a high enthalpy hydrothermal system associated with active volcanism, a CH4-rich sedimentary basin and a municipal waste landfill ...
Randazzo, A., Venturi, S., Tassi, F.
openaire   +2 more sources

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, Volume 41, Issue 12, Page 1513-1526, December 2026.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

The potential for gamma-emitting radionuclides to contribute to an understanding of erosion processes in South Africa [PDF]

Proceedings of the International Association of Hydrological Sciences, 2017
Several research projects undertaken by the authors and others over the last 14 years have used fallout and geogenic radionuclides for understanding erosion processes and sediment yield dynamics in South Africa over the last 100–200 years as European ...
I. D. L. Foster, I. D. L. Foster, J. Boardman, J. Boardman, A. L. Collins, R. Copeland-Phillips, N. J. Kuhn, T. M. Mighall, S. Pulley, K. M. Rowntree   +9 more
doaj   +1 more source

Decoding legacy phosphorus speciation in acidic, organic, and calcareous soils using solution‐state 31P nuclear magnetic resonance

Soil Science Society of America Journal, Volume 90, Issue 6, November/December 2026.
Abstract Crops grown on over 40% of arable land are limited by low levels of bioavailable phosphorus (P). Additionally, about 80% of applied P becomes fixed in soil through sorption, precipitation, and complexation with humic–metal complex surfaces. This accumulated P, excluding geogenic P, is known as “legacy P” and can contribute to crop's needs if ...
MD Anik Mahmud, Caroline Buchanan Fisher, Berson Valcin, Abul Rabbany, Eric S. McLamore, Juan Claudio Nino, Andy Ogram, Luke Gatiboni, Andrew J. Margenot, Jonathan Judy, Jehangir H. Bhadha   +10 more
wiley   +1 more source

On the subdivision of rocks and mineral deposits on the upper levels of their genetic classificacion: possibilities of integrative approach

Литосфера, 2015
The subdivision of rocks and mineral deposits distinguished on the upper levels of their genetic classifications - the major genetic classes of these objects is under study.
M. P. Pokrovsky
doaj   +2 more sources

Exposure to Selected Geogenic Trace Elements (I, Li, and Sr) from Drinking Water in Denmark

Geosciences, 2015
The naturally occurring geogenic elements iodine (I), lithium (Li), and strontium (Sr) have a beneficial effect on human health. Iodine has an essential role in human metabolism while Li and Sr are used, respectively, as a treatment for various mental ...
Denitza Dimitrova Voutchkova, Jörg Schullehner, Nikoline Nygård Knudsen, Lisbeth Flindt Jørgensen, Annette Kjær Ersbøll, Søren Munch Kristiansen, Birgitte Hansen   +6 more
doaj   +1 more source