PMID: 16509311Mar 3, 2006Paper

Sources, vertical fluxes, and equivalent toxicity of aromatic hydrocarbons in coastal sediments of the Río de la Plata Estuary, Argentina

Environmental Science & Technology
J C ColomboC N Skorupka

Abstract

Settling particles and bottom sediments collected at 1, 2.5, and 4 km off the metropolitan Buenos Aires coast in the Río de la Plata were analyzed to evaluate the sources and toxicity of resolved (PAHs) and unresolved (AROUCM) aromatic hydrocarbons. PAHs (0003-2.1 microg g(-1)) and AROUCM (0.01-78 microg g(-1)) presented the highest concentrations nearthe Buenos Aires port and sewer and decreasing values up- and downstream and along on- and offshore gradients. Sediment traps deployed in the Central area revealed large aromatic fluxes (1.3 +/- 1.5 and 31 +/- 47 mg m(-2) day(-1) for PAHs and AROUCM). The composition of sedimentary PAHs was dominated by uniformly distributed high molecular weight pyrogenic PAHs (53 +/- 11% fluoranthene, pyrene, and heavier PAHs), followed by diagenetically derived perylene more abundant in less polluted sites (29 +/- 15%) and lower molecular weight petrogenic PAHs (18 +/- 7.1% phenanthrene, anthracene, and methylated compounds), which covaried inversely with perylene. PAH diagnostic ratios indicated a stronger influence of petrogenic discharges close to the shore and the prevalence of combustion of fossil fuels and vehicle emissions over wood in offshore sediments. Sediment cores showed sustained ...Continue Reading

References

Jun 5, 2004·Marine Environmental Research·Mace G BarronStanley D Rice

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Citations

Jul 14, 2010·Archives of Environmental Contamination and Toxicology·Jian-Yang GuoBi-Xian Mai
Nov 15, 2011·Ecotoxicology·Christopher W TheodorakisPhilip W Willink
Mar 7, 2009·Environmental Monitoring and Assessment·L Salazar-CoriaC González-Macías
Aug 6, 2010·Environmental Monitoring and Assessment·Juan Fernández-TajesJosefina Méndez
Dec 24, 2013·Environmental Science and Pollution Research International·P MacikovaK Hilscherova
May 15, 2008·Bulletin of Environmental Contamination and Toxicology·I Zrafi-NouiraD Saidane-Mosbahi
Nov 6, 2009·Journal of Environmental Management·Rivelino M CavalcanteGeorge S S Freire
Aug 4, 2015·Environmental Science and Pollution Research International·Behnam KeshavarziHelena Kaabi
Aug 26, 2015·The Science of the Total Environment·Rodrigo Sarria-VillaMarta Schuhmacher
Mar 24, 2010·Environmental Pollution·Jianyang GuoBixian Mai
May 12, 2015·Marine Pollution Bulletin·Begoña Pérez-FernándezJesica Bargiela
May 6, 2014·Toxicology in Vitro : an International Journal Published in Association with BIBRA·W LevyK-W Schramm
Apr 20, 2016·Marine Pollution Bulletin·Puspa L AdhikariPatrick R Jones
May 26, 2017·Environmental Science and Pollution Research International·Biljana D ŠkrbićJelena Đ Cvejanov
Nov 1, 2008·Journal of Environmental Monitoring : JEM·Rahel C BrändliWerner A Stahel
Sep 19, 2017·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jing CaiZhiqiang Yu
Apr 1, 2016·The Science of the Total Environment·Benjamin MissonOlivier Pringault

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