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Ambient levels and occurence of persistent organic pollutans (POPs) in the airshed of a mediterranean coastal lagoon 5
Castro-jimenez, Javier; Mariani, G.; Vives, I.; Skejo, A.; Umlauf, G.; Zaldivar, Jose-manuel; Messiaen, Gregory; Laugier, Thierry.
Persistent organic pollutants (POPs) present in the airshed of a given environment may participate in exchange / deposition processes that will determine their inputs to the terrestrial or aquatic ecosystems. In addition, physico-chemical properties of POPs may favour long range atmospheric transport to other areas, even reaching remote zones. It is therefore important to determine the airshed POPs concentration in order to evaluate the potential amounts that may participate in the mentioned processes. Coastal lagoons are characterized by a high biodiversity and intense primary production leading to both ecological and economical considerable importance. Thau lagoon seems to be under intense anthropogenic pressure (urban, industrial, agricultural and shell...
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Ano: 2010 URL: http://archimer.ifremer.fr/doc/00006/11772/8481.pdf
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Atmospheric concentrations, occurrence and deposition of persistent organic pollutants (POPs) in a Mediterranean coastal site (Etang de Thau, France) 5
Castro-jimenez, J.; Mariani, G.; Vives, I.; Skejo, H.; Umlauf, G.; Zaldivar, J. M.; Dueri, Sibylle; Messiaen, Gregory; Laugier, Thierry.
Atmospheric concentrations and deposition fluxes of PCDD/F and PCB have been evaluated over a 1-year period in a Mediterranean coastal lagoon (Etang de Thau, France). Indicative PBDE air concentrations in the hot season are also reported in this work. ∑2,3,7,8-PCDD/Fs and ∑18PCBs (gas + particulate) air concentrations ranged from 67 to 1700 fg m−3 and from 13 to 95 pg m−3, respectively whereas ∑8PBDEs (gas + particulate) summer time levels varied from 158 to 230 pg m−3. The PCDD/F and PCB atmospheric occurrence over Thau lagoon and subsequent inputs to the surface waters are determined by an assemble of factors, being the seasonality of atmospheric concentration, the air mass origin and meteorological conditions important drivers. Total (wet + dry)...
Tipo: Text Palavras-chave: PCDD/F; Dioxin-like PCB; PBDE; Air; Water.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00033/14429/12600.pdf
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