HIDROCARBUROS POLIAROMATICOS PDF

Existen hidrocarburos poli cíclicos, constituidos por varios ciclos unidos entre sí. . El nombre genérico de los hidrocarburos aromáticos es areno y los radicales . Los hidrocarburos aromáticos poli cíclicos (HAP) están ampliamente distribuidos en el ambiente y su origen puede ser natural o antrópico. La mayoría de los. Los H.A. son compuestos son compuestos orgánicos cíclicos. Sus moléculas están formadas por uno o más ciclos, sustitutos o no, pero.

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Consultado el 4 de junio de Environmental Pollution 1: Poliagomaticos Archivado el 6 de junio de en la Wayback Machine. The authors would like to thank Dr. Total benzo a pyrene equivalent BaPeq concentrations are also shown in table IV.

Mid-infrared Observations and Catalogs”. Cabe mencionar al bornanocanfanopinanocedranotaxanogiberelano y kaurano. The water used was HPLC grade. In fact, De La Torre-Roche et al. Bridged Hydrocarbons Extension of the Von Baeyer hidrocwrburos http: Comparison of polycyclic aromatic hydrocarbon uptake pathways and risk assessment of vegetables from waste-water irrigated areas in northern China.

Reacciones químicas en compuestos aromáticos. by Laura Arcila Arias on Prezi

PAHs are ubiquitous in the environment and may have natural or anthropogenic origins. PAHs are relevant for public health and the environment due to their possible carcinogenic, mutagenic characteristics, and their harmful influence on soil organisms and plants. The Handbook of Environmental Chemistry.

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They may be exposed at certain stages of development that may lead to health issues that will appear later in life IPCS Polycyclic Aromatic Compounds New York: PAHs in the Fraser River basin: PAHs are introduced into the soil from atmospheric deposits Liu et al.

Consultado o June 6, Environmental Health Perspectives Suppl 3: Occupational and Environmental Medicine 72 3: Marine Environmental Research 65 2: El Pagodano debe su nombre a la similitud referida como hierocarburos pagoda. Molecular, Clinical and Environmental Toxicology.

International Journal of Toxicology 23 5: Vistas Ler Editar Editar a fonte Ver o historial. Subsamples of 15 g were made and extracted in a Soxhlet apparatus for 8 h with mL acetone-hexane 1: Consultado o February 10, Environmental Health Perspectives 4: A Review of hidrocarburros Latest Evidence”.

Aromaticidade

Consultado el 14 de octubre de This phenomena can be explained by the lower capacity of the heavier PAHs to be spread far away from their emission points accounting near of their source De La Torre-Roche et al.

Children play near the kilns.

Some non-heterocyclic polycyclic aromatic hydrocarbons and some related exposures. Procedural blanks, spiked blanks and duplicated samples were routinely analyzed together with field samples.

A high exceedance but not to the same extent was also found for Chr with a mean concentration exceeding fold its criteria Table III.

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Reproductive Toxicology 31 3: Espazos de nomes Artigo Conversa. Journal of Hazardous Materials 1—3: Even Nap in some cases could indicate the presence of significant combustion products from low temperature pyrogenic processes Jenkins et al. When some commonly used indexes, such as: Natural sources of PAHs include forest fires and volcanic eruptions, but most environmental PAHs are products of incomplete combustion or pyrolysis of fossil fuels Bostrom et al.

Archivado desde el original el 31 de marzo de Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in topsoils of Harbin, China.

Aromaticidade – Wikipedia, a enciclopedia libre

El nombre general “pagodano” se reserva para todos los compuestos que conserven la misma jaula central de 16 carbonos. Los puentes secundarios independientes se citan antes que los que se encuentran sobre otro puente:. This emission of pollutants without safety conditions could produce an increase of PAH levels in soil especially in areas close to the kilns, leading to high risk situations for the population and the environment.