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A source mixing model to apportion PAHs from coal tar and asphalt binders in street pavements and urban aquatic sediments
Present-day and more than 30 years old road and footpath pavements from Auckland, New Zealand were
analysed for PAHs to test the hypothesis that coal tar based pavement binders contribute to unusually
high PAH concentrations ...
Polycyclic aromatic hydrocarbons (PAHs) distribution in water column, native mussels (Brachydontes sp and Tagelus sp) and fish (Odontesthes sp) from an industrialized South American estuary
(Elsevier, 2009-12)
Polycyclic aromatic hydrocarbons (PAHs), one of the major groups of anthropogenic environmental pollutants, were firstly identified and measured in coastal waters, native mussels and fish of an industrialized South American ...
Seasonal distribution pattern and bioaccumulation of Polycyclic aromatic hydrocarbons (PAHs) in four bioindicator coastal fishes of Argentina
(Elsevier, 2021-12-15)
Polycyclic aromatic hydrocarbons (PAHs) are pollutants of global concern in coastal environments. They have a wide range of biological toxicity and due to their inherent properties, can easily bioaccumulate in organisms and concentrate in the environment. This work evaluated, in an integrated way, the seasonal PAH distribution patterns in sediments and four bioindicators fish species in a highly impacted estuary of Argentina; besides, their bioaccumulation patterns were assessed for the first time as indicator of ecological risk. The highest PAH levels in fish were found for Ramnogaster arcuata with an average of 64 ng g<sup>−1</sup> w.w., followed by Micropogonias furnieri (45 ng g<sup>−1</sup> w.w.), Cynoscion guatucupa (28 ng g<sup>−1</sup> w.w.), and Mustelus schmitti (16 ng g<sup>−1</sup> w.w.). Fish presented the highest PAH levels in fall with a predominance of petrogenic PAHs in colder seasons and pyrolytic PAHs in warmer seasons. Sediments presented an average of 233 ng g<sup>−1</sup> d.w. with the same seasonal composition pattern of the fish tissues. Additionally, the data suggested that the main source of PAHs are wastewater discharges. The bioaccumulation factor (BAF) of PAHs in the tested fishes were found to range from 0.3 to 8. The highest values were observed during fall and winter, while bioaccumulation did not occur in moist spring and summer samples, which would suggest a high biotransformation process during these seasons. Results suggested that class III of juvenile C. guatucupa and M. furnieri, and adults R. arcuata are more sensitive bioindicators of chronic PAH contamination and that their bioaccumulation is independent of the compound hydrophobicity; this could have a positively influence on the criteria used for biological monitoring programs along the Atlantic coast. In addition, the presented BAF data on the target species will serve as a useful pollution indicator for South Atlantic coastal fish....
Caracterização de hidrocarbonetos policíclicos aromáticos (HPA) em rios da bacia hidrográfica do Turvo/Grande
(Universidade Estadual Paulista (Unesp), 2011-08-26)
Hidrocarbonetos Policíclicos Aromáticos (HPA) fazem parte de uma classe de compostos denominados Substâncias Tóxicas Persistentes, tendo como principais características elevada toxicidade e persistência no ambiente, sendo ...
Discriminating sources and preservation of organic matter in surface sediments from five Antarctic lakes in the Fildes Peninsula (King George Island) by lipid biomarkers and compound-specific isotopic analysis
(Elsevier, 2019)
Lakes are important paleoenvironmental archives retaining abundant information due to their typical high sedimentation rates and susceptibility to environmental changes. Here, we scrutinize the organic matter (OM) composition, ...
Avaliação da distribuição de metais, selênio e hidrocarbonetos policíclicos arométicos (HPAs) em tecidos do camarão Litopenaeus vannamei (Boone, 1931) cultivados no estado da Bahia
(Instituto de QuímicaPrograma de Pós Graduação em QuímicaIQbrasil, 2016-09-02)
O consumo de crustáceos vem crescendo rapidamente, graças à expansão da cultura de camarão. As fazendas de camarão são geralmente localizadas próximas da costa e utilizam a água na criação de camarões, a qual pode estar ...
Las pluvisilvas de Cuba Occidental y Central: Su distribución y estado de conservación
(Editora Geotech, 2004)
Las Pluvisilvas de Cuba Occidental se distribuyen en la macrovertiente norte del Pan de Guajiabón entre 400 y 550 metros de altitud sobre un yacimiento de bauxita que presenta una gruesa corteza de intemperismo de color ...
Characterization, source identification and risk associated with polyaromatic and chlorinated organic contaminants (PAHs, PCBs, PCBzs and OCPs) in the surface sediments of Hooghly estuary, India
(Facultad de Ingeniería y Tecnología, 2019)
The spatial distribution, source identification and ecotoxicological impact of a group of persistent organic pollutants (POPs: dichlorodiphenyltrichloroethane (DDT), hexachlorocyclohexanes (HCH5), poly-chlorobiphenyls ...
Caracterização de hidrocarbonetos policíclicos aromáticos (HPA) em rios da bacia hidrográfica do Turvo/Grande
(Universidade Estadual Paulista (Unesp), 2011-08-26)
Hidrocarbonetos Policíclicos Aromáticos (HPA) fazem parte de uma classe de compostos denominados Substâncias Tóxicas Persistentes, tendo como principais características elevada toxicidade e persistência no ambiente, sendo ...
Amostragem e determinação de hidrocarbonetos policíclicos aromáticos e seus derivados nitrados e oxigenados em material atmosférico particulado por cromatografia gasosa acoplada a espectrometria de massas sequencial
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE QUÍMICAPrograma de Pós-Graduação em QuímicaUFMG, 2022-11-18)
Polycyclic aromatic hydrocarbons (PAHs) are known by its carcinogenic and mutagenic potential, especially benzo[a]pyrene. Their oxygenated (oxy-PAHs) e nitrated (nitro-PAHs) derivatives is in the concern of the Academia ...