IITEMA   27339
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIAS ENERGETICAS Y MATERIALES AVANZADOS
Unidad Ejecutora - UE
artículos
Título:
Assessing polycyclic aromatic hydrocarbons in the marine atmosphere on a transect across the Southwest Atlantic Ocean
Autor/es:
PEGORARO, C.N.; RIMONDINO, G.N.; QUIROGA, S.L.; ARGÜELLO, G.A.; MONTEJANO, H.A.; CHIAPPERO, M.S.
Revista:
Atmospheric Pollution Research
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Año: 2020 vol. 11 p. 1035 - 1041
ISSN:
1309-1042
Resumen:
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and semivolatile pollutants associated with emissions from both natural and anthropogenic sources. For decades, the atmosphere has been considered an efficientvehicle for pollutants transport around the world. In order to assess the atmospheric occurrence of PAHs across a transect in the Southwest Atlantic Ocean, air samples were collected aboard the oceanographic vessel ARA Puerto Deseado (CONICET), during two consecutive research campaigns in October?November 2014. Total PAHs were dominated by gas phase levels of Phenantrene, Dibenzothiophene, Fluorene, Fluoranthene and Pyrene in a concentration range of 57?5778 pg m−3. Characteristic diagnostic ratios of some PAHs were estimatedin order to assess their possible emission sources showing important contribution from petrogenic and pyrogenic origin. Additionally, air mass back trajectory calculation revealed a marked influence of air with oceanic origin, being the contribution from the South American continent scarce. PAHs levels showed a decreasing trend from the coast towards open ocean, with exception of those sites that showed continental air masses influence.