Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina

Atmospheric Polychlorinated Biphenyls (PCBs:Σ42 congeners) collected by polyurethane passive samplers (PAS-PUFs) in 29 stations from July 2010 to February 2014 (n = 141) in the most productive and populated Southern Rio de la Plata area in Argentina were evaluated to assess concentration gradients,...

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Autores principales: Astoviza, Malena Julia, Cappelletti, Natalia Elsa, Bilos, Claudio, Migoya, María Carolina, Colombo, Juan Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Naturales
Atmospheric Polychlorinated Biphenyls
Río de la Plata Basin
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104971
https://www.sciencedirect.com/science/article/abs/pii/S0048969716315479
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104971
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Atmospheric Polychlorinated Biphenyls
Río de la Plata Basin
spellingShingle Ciencias Naturales
Atmospheric Polychlorinated Biphenyls
Río de la Plata Basin
Astoviza, Malena Julia
Cappelletti, Natalia Elsa
Bilos, Claudio
Migoya, María Carolina
Colombo, Juan Carlos
Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
topic_facet Ciencias Naturales
Atmospheric Polychlorinated Biphenyls
Río de la Plata Basin
description Atmospheric Polychlorinated Biphenyls (PCBs:Σ42 congeners) collected by polyurethane passive samplers (PAS-PUFs) in 29 stations from July 2010 to February 2014 (n = 141) in the most productive and populated Southern Rio de la Plata area in Argentina were evaluated to assess concentration gradients, potential sources and compositional profiles related to different land use and urbanization. On a global scale, total airborne PCBs concentrations are low/very low (below detection limit to 937 pg m<sup>−3</sup>) and show a significant potential correlation with urban scale increasing 2.5 times each 10 times increase of population reflecting the primary role of urbanization controlling PCB emissions. Compositional patterns evaluated by principal component analysis (PCA) of individual congeners indicated that highly populated atmospheres are enriched in lighter, more volatile tri, tetra and penta chlorine congeners of lighter Aroclor mixtures (from 1242 to 1254) suggesting actual emission of fresh PCBs signatures from sealants, combustion and/or electrical equipment. Sub urban and rural sites show a gradual transition to heavier Aroclor mixtures (from 1254 to 1260) with predominance of more persistent hexa and hepta PCBs indicating an aged background signal resulting from long range transport and/or reemission from historic reservoirs such as soils.
format Articulo
Articulo
author Astoviza, Malena Julia
Cappelletti, Natalia Elsa
Bilos, Claudio
Migoya, María Carolina
Colombo, Juan Carlos
author_facet Astoviza, Malena Julia
Cappelletti, Natalia Elsa
Bilos, Claudio
Migoya, María Carolina
Colombo, Juan Carlos
author_sort Astoviza, Malena Julia
title Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
title_short Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
title_full Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
title_fullStr Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
title_full_unstemmed Airborne PCB patterns and urban scale in the Southern Río de la Plata Basin, Argentina
title_sort airborne pcb patterns and urban scale in the southern río de la plata basin, argentina
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/104971
https://www.sciencedirect.com/science/article/abs/pii/S0048969716315479
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