Results 171 to 180 of about 17,011 (264)

Eusocial bee species are exposed to different toxic element profiles despite foraging within the same landscape

Ecological Entomology, EarlyView.
Bombus terrestris and Apis mellifera colonies sharing the same landscape (<50 m from each other) collected pollen with significantly different heavy metal concentrations. B. terrestris‐collected pollen contained 2–7× higher concentrations of arsenic, chromium, cobalt, lead and tin than A. mellifera‐collected pollen.
Sarah B. Scott, Nynke Blömer, Lynn V. Dicks   +2 more
wiley   +1 more source

Phosphatic rock weathering and agricultural activities driving the dynamics of potentially toxic elements in surface soil of weathered zone. [PDF]

PeerJ
Zhang H, Liao C, Wang C, Ye X, Du B, Yu Y, Zhang L.   +6 more
europepmc   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

Methane cycling microbes are important predictors of methylmercury accumulation in rice paddies. [PDF]

Appl Environ Microbiol
Zhang R, Poulain AJ, Pu Q, Liu J, Abdelhafiz MA, Feng X, Meng B, Grégoire DS.   +7 more
europepmc   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook, Bruno V. Ribeiro, Janne Liebmann, Kai Rankenburg, Fred Jourdan, Ahmad Redaa, Jarred C. Lloyd, Thomas M. Belgrano, Carlos R. Corella Santa Cruz, Yujin Jegal, Julien Mercadier, Catherine Zimmermann, Jie Yu, Andreas Zametzer, Christopher L. Kirkland, Sarah E. Gilbert, Craig D. Storey, Luc S. Doucet, Isabelle Jones, Louisa Stokes, Thomas Zack, Delia Rösel, Denis Fougerouse, Jonas Kaempf, Priyanjan Datta, Hijas Hameed, Noreen J. Evans, Malcolm P. Roberts, Juraj Farkas, Stijn Glorie, Celia Mayers, R. Adam Frew, Sarah Al Odeh, Chloe E. Roche, Massimo Chiaradia, Alicia M. Cruz‐Uribe, Alan S. Collins, Andreas Karlsson, Anusha Shantha Kumara   +38 more
wiley   +1 more source

Continental evolution influenced by relamination of deeply subducted continental crust. [PDF]

Nat Geosci
Gómez-Frutos D, Castro A, Balázs A, Gerya T.   +3 more
europepmc   +1 more source

Anaerobic Attenuation of Diisopropyl Ether (DIPE) in Groundwater: Kinetics and Implications for Monitored Natural Attenuation

Groundwater Monitoring &Remediation, EarlyView.
Abstract Diisopropyl ether (DIPE) is a branched ether used as a solvent, extractant, and gasoline additive. While aerobic biodegradation of DIPE has been documented, attenuation under anaerobic conditions (typical of groundwater impacted by petroleum hydrocarbons and fuel oxygenates) remains poorly constrained.
Sandra Dworatzek, Kawalpreet Kaur, Trevor Carlson, Jennifer Webb, Ioanna Malton, Melody A. Vachon‐Gregory, Lonnie Mercer, Emmanuel Olisa, Eryn Torres, Shailendra Ganna, George Devaull, Joseph Lentini   +11 more
wiley   +1 more source

Advancing censored geochemical Au prediction through Bayesian spatial models and Random Forest with fractal-based background separation. [PDF]

Sci Rep
Mahdiyanfar H.
europepmc   +1 more source

Delivering Sulfate to LNAPL Body for Enhanced Source Zone Depletion (ESZD)

Groundwater Monitoring &Remediation, EarlyView.
Abstract This field pilot study evaluates the feasibility of applying sulfate to a light non‐aqueous phase liquid (LNAPL) body for achieving enhanced source zone depletion (ESZD) at a refinery site. Two rounds of gypsum land application (GLA) delivered sulfate to an 8000 ft2 area encompassing LNAPL‐containing monitoring wells MW‐2 and MW‐3, while MW‐1 ...
Ravi Kolhatkar, Kanwartej S. Sra, Hong Yu   +2 more
wiley   +1 more source

Structure and Spatial Heterogeneity of Chemosynthesis-Based Deep-Sea Archaeal and Bacterial Communities in Western South Atlantic. [PDF]

Ecol Evol
Lopes Simão TL, Felix Ribeiro KA, Dias R, Augustin AH, Rodrigues LF, Miller DJ, Viana AR, Triplett EW, Ketzer JMM, Giongo A, Eizirik E, Medina-Silva R.   +11 more
europepmc   +1 more source