Results 31 to 40 of about 53 (53)

Influência da utilização de lareiras na concentração de benzo(a)pireno no ar Viseu

The study investigated the influence of the use of residential fireplaces on the concentration of benzo(a)pyrene (BaP) in urban air in the city of Viseu, Portugal. BaP, a highly carcinogenic polycyclic aromatic hydrocarbon, is emitted mainly by the incomplete combustion of biomass.
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Fitorremediación de suelos con Benzo(a)Pireno mediante microorganismos autóctonos y pasto alemán [Echinochloa polystachya (H.B.K.) Hitchc.]

, 2006
BaP, biodegradaci´on, biomasa vegetal, organismos aut´octonos, pasto alem´an, unidades formadoras de colonias.
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Desarrollo y aplicación de nuevas metodologías analíticas para la determinación de contaminantes ambientales (metales pesados y benzo(a)pireno)

, 2015
The present thesis is focused on the development of new methodologies for a fast and reliable determination of heavy metals (Zn(II), Cd(II) and Pb(II)) and benzo(a)pyrene in diverse environmental samples. We also aimed to reduce the use of toxic substances, energy demand and waste generation, in the context of Green Analytical Chemistry.
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O papel das substâncias húmicas na disponibilidade de metais e benzo[a]pireno e indução de metalotioneínas em peixes

, 2014
The aquatic humic substances have great environmental importance to have the ability to complex metal ions present in the environment influencing their availability, making them generally less toxic to biota. Metallothioneins (MT) have the characteristic of regular metals on aquatic organisms being induced in the presence of metals and other compounds ...
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Efecto del brócoli en el metabolismo del citocromo P450 en la tilapia (Oreochromis niloticus) expuesta a benzo(a)pireno y fenol

, 2010
Compuestos contaminantes como el benzo(a)pireno (B(a)P) son considerados como altamente peligrosos para la salud de los organismos expuestos. Diversos estudios, relacionan la ingestión de dietas ricas en vegetales crucíferos (e.g. brócoli), con la quimiprotección contra compuestos promotores de cáncer (como el B(a)P).
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Evaluación del efecto de la exposición al hidrocarburo benzo[a]pireno sobre la eficiencia fotosintética de tres microalgas marinas

, 2010
Benzopl_apyrene, (BaP) is a polycyclic aromatic hydrocarbon (PAH) known as the ninth most dangerous substance due to its toxicity and high potential of damage as a carcinogenic and mutagenic substance. Considering the scarce information on the effects of PAHs, and particularly BaP on marine phytoplankton species, the present study was aimed to evaluate
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Efeitos sistêmicos viscerais e somáticos do Benzo-[alfa]-pireno em Physalaemus nattereri mediante as vias de exposição oral e injetável

, 2018
Anurans are in declining population, being one of the causes attributed to the pollution of their habitats. Characteristics such as absence of eggshells, waterdependent life cycle and high skin permeability make anurans susceptible to chemical compounds present in aquatic and terrestrial ecosystem.
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Marcadores de estresse oxidativo em Minutocellus polymorphus (Heterokontophyta) sob exposição ao oxifluorfeno e ao benzo [a]pireno [PDF]

, 2015
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Análisis comparativo del transcriptoma del hongo halófilo aspergillus sydowii-like, crecido en benzo [a] pireno y fenantreno en condiciones hipersalinas.

, 2018
ABSTRACT The indiscriminate use of fossil fuels and oil spills, among other related causes are the main factors that have contributed over time to the persistence of xenobiotic pollutants in the environment. Polycyclic aromatic hydrocarbons (PAHs) are defined as persistent xenobiotic compounds with strong carcinogenic and mutagenic properties, highly ...
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Estudo sobre efeitos do naftaleno e benzo(a) pireno em Trachinotus carolinus (Perciformes, Carangidae) utilizando biomarcadores citogenotóxicos, histopatológicos e bioquímicos [PDF]

, 2015
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