Results 61 to 70 of about 85,910 (267)

Determination of Paraquat in Real Samples Using a Printed PET‐Based Electrode Modified With Molecularly Imprinted Polymer and Carbonaceous Material

open access: yesElectroanalysis, Volume 37, Issue 12, December 2025.
This study reports the development of an electrochemical sensor printed with graphite‐based ink on a recycled PET substrate. The device was functionalized with a molecularly imprinted polymer (MIP) and multiwalled carbon nanotubes (MWCNTs) for the selective detection of paraquat in water, apple juice, and acerola juice samples, highlighting its ...
Malena Karla Lombello Coelho de Souza   +5 more
wiley   +1 more source

Photocatalytic degradation of an organophosphorus pesticide from agricultural waste by immobilized TiO2 under solar radiation

open access: yesRevista Ambiente & Água, 2016
This paper describes solar heterogeneous photocatalysis using immobilized TiO2 applied in the treatment of agricultural waste resulting from the application of commercial formulations of methyl parathion.
Marcia Regina Assalin   +5 more
doaj   +1 more source

Relocating Citizens From Urban Environments Exposed to Hazardous Levels of Contamination: A Rapid Scoping Review

open access: yesRisk, Hazards &Crisis in Public Policy, Volume 16, Issue 4, December 2025.
ABSTRACT Background Hazardous levels of contaminants produced by anthropogenic activities are increasingly pervading residential environs and urban areas. Hazardous contamination can pose significant health risks for citizens dwelling in exposure pathways.
Rosina Johnson   +3 more
wiley   +1 more source

Resistencia de concreto con agregado de alta absorción y baja relación a/c

open access: yesRevista ALCONPAT, 2012
RESUMEN La resistencia del concreto depende de la calidad de la pasta de cemento y de las características de los agregados pétreos. La primera es controlada por la relación agua - cemento, mientras que las propiedades de los agregados generalmente no ...
R. G. Solís, E. Moreno, E. Arjona
doaj   +1 more source

Can induced drying modulate the response of leaf litter decomposition and fungal diversity to wastewater effluents in permanent streams?

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3543-3555, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Watercourses are among the most threatened ecosystems globally and face multiple anthropogenic stressors of different origins and intensities that reduce biodiversity and disrupt ecosystem functioning.
Manuel Pinilla‐Rosa   +6 more
wiley   +1 more source

Estudo da aplicabilidade do modelo da ação corretiva baseada no risco (RBCA) em contaminações subterraneas com gasolina e etanol [PDF]

open access: yes, 1997
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoAnálise do programa Ação Corretiva Baseada no Risco (RBCA) com o objetivo de verificar se é adequada sua aplicação em contaminações de solos e águas subterrâneas por ...
Finotti, Alexandra Rodrigues
core  

Contaminantes emergentes [PDF]

open access: yes, 2020
En este artículo docente se definen los contaminantes emergentes y se explican los distintios tipos y efectos que tienen en el medio ambiente.Pachés Giner, MAV. (2020). Contaminantes emergentes.
Paches Giner, Maria Aguas Vivas
core  

Influence of Electric Field in the Adsorption of Atomic Hydrogen on Graphene

open access: yesAdvances in Condensed Matter Physics, 2015
The influence of external electric field (EF) in the adsorption of atomic hydrogen on graphene (H/G) was studied by means of electronic structure calculations based on spin-polarized density functional theory with generalized gradient approximation (GGA).
C. Cab   +5 more
doaj   +1 more source

Evaluation of the Sagittaria montevidensis Cham. & Schltdl. as a bioindicator and phytoextractor of toxic metals

open access: yesRevista Ambiente & Água, 2017
This study evaluated the bioindication and phytoremediation capacity of the aquatic macrophyte Sagittaria montevidensis by using it to assess the bioconcentration and translocation of heavy metals.
Edila Maria Kickhöfel Ferrer   +3 more
doaj   +1 more source

Microplásticos: contaminantes de preocupação global no Antropoceno

open access: yes, 2018
Desde o inicio da producao em massa do plastico, em meados do seculo XX, a contaminacao ambiental por esse material antropogenico tem sido crescente e cada vez mais aparente, sendo ate considerado um indicador geologico potencial no Antropoceno ...
G. Olivatto   +3 more
semanticscholar   +1 more source

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