Persistent organic pollutants (POPs) in the atmosphere of coastal areas of the Ross Sea, Antarctica: Indications for long-term downward trends

Karla Pozo, Tania Martellini, Simonetta Corsolini, Tom Harner, Victor Estellano, Petr Kukučka, Marie D. Mulder, Gerhard Lammel, Alessandra Cincinelli*

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

46 Citas (Scopus)

Resumen

Passive air samplers were used to evaluate long-term trends and spatial distribution of trace organic compounds in Antarctica. Duplicate PUF disk samplers were deployed at six automatic weather stations in the coastal area of the Ross sea (East Antarctica), between December 2010 and January 2011, during the XXVI Italian Scientific Research Expedition. Among the investigated persistent organic compounds, Hexachlorobenzene was the most abundant, with air concentrations ranging from 0.8 to 50 pg m−3. In general, the following decreasing concentration order was found for the air samples analyzed: HCB > PeCB > PCBs > DDTs > HCHs. While HCB concentrations were in the same range as those reported in the atmosphere of other Antarctic sampling areas and did not show a decline, HCHs and DDTs levels were lower or similar to those determined one or two decades ago. In general, the very low concentrations reflected the pristine state of the East Antarctica air. Backward trajectories indicated the prevalence of air masses coming from the Antarctic continent. Local contamination and volatilization from ice were suggested as potential sources for the presence of persistent organic pollutants in the atmosphere.

Idioma originalInglés
Páginas (desde-hasta)458-465
Número de páginas8
PublicaciónChemosphere
Volumen178
DOI
EstadoPublicada - 2017
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2017 Elsevier Ltd

Áreas temáticas de ASJC Scopus

  • Ingeniería ambiental
  • Química ambiental
  • Química General
  • Contaminación
  • Salud pública, medioambiental y laboral
  • Salud, toxicología y mutagénesis

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