Author: Freek AriesePublisher:
ISBN:
Category :
Languages : en
Pages : 29
Book Description
Comparison of Analytical Approaches for PAH Metabolites in Fish Bile Samples for Marine and Estuarine Monitoring
Author: Freek AriesePublisher:
ISBN:
Category :
Languages : en
Pages : 29
Book Description
Review of Analytical Methods for Determining Metabolites of Polycyclic Aromatic Compounds (PACs) in Fish Bile
Author: Publisher:
ISBN:
Category : Biological assay
Languages : en
Pages : 54
Book Description
Evaluation of the oil contamination of the estuarine environment of the guanabara bay (rj) by the fluorometric determination of polycyclic aromatic hydrocarbons (pahs) in the mugil liza fish bile
Author: Publisher:
ISBN:
Category :
Languages : pt-BR
Pages :
Book Description
Os Hidrocarbonetos Policíclicos Aromáticos (HPAs) são poluentes ubíquosna natureza sendo os derrames de óleo uma das principais fontes destes compostospara os ambientes aquáticos costeiros. Este trabalho avalia a possibilidade de usodos metabólitos de HPAs na bílis do peixe Mugil liza (tainha) como biomarcadoresno monitoramento ambiental de ecossistemas aquáticos. Para esta avaliaçãorealizou-se um monitoramento sazonal na Baía de Guanabara, RJ, área cronicamentecontaminada por óleo, e em Itaipu, Niterói, RJ, como área controle. Nos locaisde coleta foram medidos parâmetros físico-químicos tais como, pH, oxigêniodissolvido, entre outros e selecionados os peixes variando entre 35 e 51 cm paramaior homogeneidade das amostras. Em laboratório foram feitas medidas morfométricasdos indivíduos e retirado o seu líquido biliar. O método analítico foi otimizadoe seus parâmetros de desempenho analítico foram determinados. As amostrasde líquido biliar foram diluídas em etanol 48% (1:2000 v/v) e analisadas porfluorescência nos comprimentos de onda de excitação e emissão, respectivamente,332 nm e 383 nm. A média das concentrações de HPAs totais na bílis dos peixescoletados na Baía de Guanabara foi significativamente diferente da área controle, Itaipu. Na Baía de Guanabara, valores de 7,0 " 3,4 (n=19) e 10,4 " 6,4 (n=12) mgde equivalentes (eqv.) de pireno L-1 foram obtidos, respectivamente, no inverno eno verão. Em Itaipu, a concentração de HPAs foi de 1,8 " 0,7 (n=11) mg de eqv.de pireno L-1. Estes resultados indicam que o método é capaz de diferenciar áreasrecentemente contaminadas por óleo de áreas não contaminadas, sendo o peixeMugil liza um possível biomonitor para esta área. Este método analítico apresentavantagens em relação a outros métodos, tais como tempo e custo de análise reduzidos, podendo ser usado em levantamento de dados preliminares nos programasde monitoramento ambiental.
Determination of PAH Metabolites in Fish Bile
Author: Grete JonssonPublisher:
ISBN: 9788249701698
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 159
Book Description
Petrogenic Polycyclic Aromatic Hydrocarbons in the Aquatic Environment: Analysis, Synthesis, Toxicity and Environmental Impact
Author: Daniela M. PampaninPublisher: Bentham Science Publishers
ISBN: 1681084279
Category : Science
Languages : en
Pages : 245
Book Description
Although a lot is known about the influence of Polycyclic Aromatic Hydrocarbons (PAHs) on the marine environment, there are still many unanswered questions. Petrogenic Polycyclic Aromatic Hydrocarbons in the Aquatic Environment is a monograph that sums up basic knowledge about this topic while highlighting current research practices useful in studying the aquatic environment. It starts with an introduction to effect of PAH in the marine environment. It then proceeds to provide information on techniques to monitor PAH levels and investigate the affected environment in order to control the subsequent negative effects. Chapters also detail the carcinogenic and endocrine effects of PAHs on fish as well as the degradation of PAHs by microorganisms. This monograph is a useful reference for environmental science students and professionals learning about the role of PAH in the marine environment.
Canadian Journal of Fisheries and Aquatic Sciences
Author: Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 720
Book Description
Biological Effects of Contaminants in Marine Pelagic Ecosystems
Author: Ketil HyllandPublisher: Setac Press
ISBN:
Category : Science
Languages : en
Pages : 538
Book Description
ICES Techniques in Marine Environmental Sciences
Author: Freek AriesePublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Polycyclic Aromatic Hydrocarbons (PAHs) and Their Influence to Some Aquatic Species
Author: Ayoub BaaliPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 0
Book Description
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants generated primarily during the incomplete combustion of organic materials (e.g., coal, oil, petrol, and wood). Many PAHs have toxic, mutagenic, and/or carcinogenic functions. PAHs are highly lipid soluble which lead to a fast absorption by the gastrointestinal tract of marine mammals. They are immediately distributed in a vast variety of tissues with a notable tendency for localization in body fat. Metabolism of PAHs is obtained via the cytochrome P450-mediated mixed function oxidase system with oxidation or hydroxylation as the first step. PAHs are environmental contaminants that pose significant risk to health of fish. The effect of PAHs on fish is a topic of rising attention in a lot of countries. Different studies using the bile metabolites separated by high-performance liquid chromatography with fluorescence detection were presented. The aim is to compare the levels of PAH metabolites in fish from different areas and fish species. The major metabolite present in all fish was 1-hydroxypyrene. The data confirm the importance of 1-hydroxypyrene as the key PAH metabolite in fish bile and suggest that the European eel is an ideal species for monitoring PAHs.
Toxicological Profile for Polycyclic Aromatic Hydrocarbons
Author: Publisher:
ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 500
Book Description
