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Article Dans Une Revue Environmental Science and Pollution Research Année : 2014

PAHs and fish-exposure monitoring and adverse effects-from molecular to individual level

Résumé

Polycyclic aromatic hydrocarbons (PAHs) are a diverse family of more than one hundred compounds, containing at least two aromatic rings. In addition to parent compounds, the PAH family also includes substituted derivatives, bearing one or several alkyl groups, sulfur, or oxygen. In the environment, PAHs are ubiquitous and present as very complex mixtures. They can also be associated with metallic and/or other organic compounds. The composition of PAH mixtures depends on their origin. There are two major types of such PAH mixtures, petrogenic and pyrogenic, which enter the environment through different routes. Petrogenic mixtures originate from oils, including natural oil seeps. They enter the aquatic environment due to harbor activity or soil runoff or as a consequence of oil spills. Pyrolytic mixtures result from the incomplete combustion of organic matter, including fossil fuel, entering aquatic environments through deposits of atmospheric emissions directly into water or soil, followed by soil erosion and runoff. Directly linked to human activity, the release of PAHs into the environment has increased over the last few decades. As an example, the amount of PAHs released into the atmosphere has dramatically increased from under 50,000 tons in 1987 (Eisler 1987) to over 500,000 tons in 2004 (Zhang and Tao 2009)

Dates et versions

hal-01205093 , version 1 (24-09-2015)

Identifiants

Citer

Xavier Cousin, Jérôme Cachot. PAHs and fish-exposure monitoring and adverse effects-from molecular to individual level. Environmental Science and Pollution Research, 2014, 21 (24), pp.13685-13688. ⟨10.1007/s11356-014-3161-8⟩. ⟨hal-01205093⟩
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