Download or read book Determination of PAH Metabolites in Fish Bile written by Grete Jonsson and published by . This book was released on 2003 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Analytical Approaches for PAH Metabolites in Fish Bile Samples for Marine and Estuarine Monitoring written by Freek Ariese and published by . This book was released on 1997 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mass Fractions of PAH Metabolites in Two Fish Bile Materials written by and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycyclic Aromatic Hydrocarbons PAHs and Their Influence to Some Aquatic Species written by Ayoub Baali and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Gas Chromatography mass Spectrometry Detection of Polycyclic Aromatic Hydrocarbon Metabolites in Fish and Its Applications in Environmental Studies written by Yanhui Yu and published by . This book was released on 1994 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Alkylphenol Metabolites in Fish Bile Using Solid phase Analytical Derivatization SPAD and Gas Chromatography mass Spectrometry in Electron Ionization Mode GC EI MS written by Grete Jonsson and published by . This book was released on 2012 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Bile Metabolites written by Peter John Ruddock and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 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 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Certification of the Mass Fractions of PAH Metabolites 1 hydroxyphenanthrene 1 hydroxypyrene and 3 hydroxybenzo a pyrene in Two Fish Bile Materials written by Freek Ariese and published by . This book was released on 2004 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicological Profile for Polycyclic Aromatic Hydrocarbons written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petrogenic Polycyclic Aromatic Hydrocarbons in the Aquatic Environment Analysis Synthesis Toxicity and Environmental Impact written by Daniela M. Pampanin and published by Bentham Science Publishers. This book was released on 2017-04-07 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Polycyclic Aromatic Hydrocarbons written by and published by National Academies. This book was released on 1983-01-01 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolism of Polycyclic Aromatic Hydrocarbons in the Aquatic Environment written by Usha Varanasi and published by CRC Press. This book was released on 1989-03-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows how the biological transport, bioaccumulation, disposition, and toxicity of polycyclic aromatic hydrocarbons (PAH) in the aquatic environment are influenced by the ability or inability of organisms to metabolize these environmental pollutants. Written by leading scientists in the fields of PAH metabolism and toxicity in both aquatic and mammalian systems, this book discusses recent advances in the areas of PAH biogeochemistry and bioaccumulation, microbial degradation, enzymes of activation, and detoxication, metabolism of PAH, and laboratory and field studies on carcinogenic/toxic effects. Additionally, important similarities and differences in metabolism of PAH by aquatic and terrestrial organisms are featured. The discussion of bioavailability, metabolism, and subsequent toxic effects should aid in the assessment of the ecological consequences of PAH in the aquatic environment.
Download or read book WHO Guidelines for Indoor Air Quality written by and published by World Health Organization. This book was released on 2010 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.
Download or read book Hepatobiliary Polycyclic Aromatic Hydrocarbons in Pelagic Fishes of the Gulf of Mexico written by Madison Richards Schwaab and published by . This book was released on 2020 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries populations and their ecosystems are negatively impacted by both chronic and acute inputs of pollutants, including oil spills such as the Deepwater Horizon platform blowout in 2010 in the Gulf of Mexico (GoM). After Deepwater Horizon, toxicological studies of demersal fishes of the northern GoM were undertaken to characterize impacts and to establish baseline contaminant levels in the aftermath of the spill. In this study, I quantify polycyclic aromatic hydrocarbon (PAH) concentrations in eight pelagic fish species to demonstrate oil exposure differences between species, region and time. Analysis of biliary PAH metabolite equivalents using high performance liquid chromatography was used to estimate short-term and acute exposure in pelagic fishes (n = 102). Hepatic PAH concentrations of 19 parental PAHs and their alkylated homologs in pelagic liver samples (n = 142) were quantified using QuEChERS extractions and GC/MS/MS to quantify long-term and chronic exposure. The hepatic ∑46PAH (sum of 46 parental and homolog PAH compounds) concentration ranges quantified for all species and regions (21.2 to 468 ng g-1 wet weight) are within the range found previously in the GoM region for demersal and reef fishes. Biliary PAH equivalent ∑3FAC concentrations (fluorescent aromatic compounds of three PAH indicators) ranged from 4,400 to 1,400,000 ng FAC g-1 bile, which were also within the same range as demersal and reef species in this region. However, mean biliary PAH concentrations measured in Yellowfin Tuna (855 μg FAC g-1) from the north central GoM were more than three times higher than Golden Tilefish (263 μg FAC g-1) and 20 times higher than Yellowedge Grouper (Hyporthodus flavolimbatus, 41 μg FAC g-1) collected in the same region. Significant negative relationships between PAH concentrations, biometrics (e.g. fish length), and putative indices of fish health including Fulton’s condition factor and the hepatosomatic index were identified for multiple species. Intraspecies and regional differences were also identified for Greater Amberjack, Seriola dumerili, and Yellowfin Tuna, Thunnus albacares, suggesting variation in PAH sources across region. Produced waters from oil and gas platform discharges among other sources including riverine input, atmospheric deposition, burning of fossil fuels, resuspension of contaminated sediments, and chronically leaking wells are likely contributing to regional differences within species. Furthermore, the high levels of PAH exposure in pelagic species compared to demersal and reef species, indicated by biliary fluorescent aromatic compounds (FACs), warrants further investigation to identify the prominent source of surface water PAHs and the specific physiological species differences that govern the observed high rates of exposure and metabolic clearance for species such as the Yellowfin Tuna.
Download or read book Measurement of PAH in Fish Bile and MFO Induction as Indicators of Fish Exposure written by Barry R. Taylor and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICES Techniques in Marine Environmental Sciences written by Grete Jonsson and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
