Results 41 to 50 of about 253,053 (229)

Efecto de la adición de enmiendas en la inmovilización de metales pesados en suelos mineros del sur de Bolívar, Colombia

open access: yesCiencia y Tecnología Agropecuaria, 2021
En zonas del departamento de Bolívar (Colombia) es evidente la degradación de los suelos como consecuencia de la explotación minera informal, por lo cual es necesario buscar estrategias que minimicen el impacto de estos contaminantes en cultivos ...
Daisy Escarlet Martínez Madrid   +1 more
doaj   +1 more source

“Métodos de remoción y degradación de antibióticos en medio acuoso” [PDF]

open access: yes, 2013
En los últimos años, los antibióticos han sido considerados contaminantes emergentes debido a su aporte continuo y su persistente aparición en los ecosiste concentraciones. Estos contaminantes se han detectado en todos los cuerpos acuáticos del mundo, lo
Herrera Corona, Cruz Eduardo   +1 more
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Environmental racism and air pollution: Pre and post the COVID‐19 economic shutdown

open access: yesReview of Policy Research, Volume 42, Issue 4, Page 949-981, July 2025.
Abstract Decades of research demonstrates that minoritized groups are disproportionately affected by swathes of harmful pollutants, including air pollution, even controlling for low income. Would significantly reducing individual car traffic help reduce the EJ gap?
Heather E. Campbell   +3 more
wiley   +1 more source

Remoción de Contaminantes Atmosféricos Sox y Nox mediante Nanotubos de Carbono [PDF]

open access: yes, 2013
En el presente proyecto de investigación se realizó la evaluación de la remoción de los contaminantes atmosféricos provenientes de fuentes móviles, mediante nanotubos de carbono (NTC) comerciales. Para conocer las propiedades de los NTC empleados, fueron
SAAVEDRA LABASTIDA, ERIKA   +1 more
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Opinion and report of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on the assessment of the impact of fox population dynamics on public health

open access: yesFood Risk Assess Europe, Volume 3, Issue 2, April 2025.
ABSTRACT The Red Fox (Vulpes vulpes) can be hunted as a game species. It may also be listed as a “species likely to cause damage” (ESOD – the acronym in French), for public health reasons among others. Conversely, benefits linked to the presence of foxes are also put forward, such as the predation of rodents carrying zoonotic agents.
Emmanuelle Gilot‐Fromont   +97 more
wiley   +1 more source

Contaminação por compostos organoclorados em salsichas hot-dog comercializadas na cidade de Santa Maria (RS), Brasil Contamination for organochlorine compounds in hot-dog sausages, commercialized in the city of Santa Maria (RS), Brazil

open access: yesCiência Rural, 2004
Com o objetivo de monitorar os resíduos de compostos tóxicos em alimentos, verificou-se a freqüência e os níveis de praguicidas organoclorados (OC) e bifenilas policloradas (PCBs) em amostras de salsichas Hot-Dog, comercializadas na Cidade de Santa Maria,
Stanislau Bogusz Junior   +5 more
doaj   +1 more source

Organochlorine Compounds in Common Carp (Cyprinus carpio) from Patagonia Argentina [PDF]

open access: yes, 2010
The Negro River is the most important hydrological system of Patagonia, Argentina, drains a watershed of 140,000 km2. Its main economic activities are agriculture and industry, representing potential sources of organochlorine compounds (OCCs ...
Aizpún, Julia Elena   +5 more
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Exploring barriers to menstrual education between maternal figures and young girls: A pilot study in South Africa

open access: yesSexuality, Gender &Policy, Volume 7, Issue 3, Page 305-321, August 2024.
Abstract The study sought to explore barriers to menstrual education between maternal figures and young girls. Menstruation is a key part of the reproductive process and affects young adolescent girls. Menstrual blood is perceived as contaminating and impure, leading to the socialization of women and girls undergoing menstruation to feel soiled and ...
Viwe Sobudula, Dhee Naidoo
wiley   +1 more source

EVALUACIÓN DE LA CASCARILLA DE HIGUERILLA COMO POSIBLE ADSORBENTE DE CONTAMINANTES FENÓLICOS EN FASE ACUOSA

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
Con el propósito de brindar valor agregado a la cascarilla de higuerilla como bio - adsorbente para el tratamiento de aguas residuales, se realizaron ensayos preliminares de retención en fase acuosa de fenol y p-nitrofenol a una temperatura de 25°C ...
Luisa Fernanda Navarrete Rodríguez   +1 more
doaj   +1 more source

Estudio y aplicación del biodiesel [PDF]

open access: yes, 2008
El biodisel como alternativa para reducir las emisiones contaminantes en la ciudad de ...
Chica, Fernando, Espinoza, Fernando
core  

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