Occurrence of chlorpyrifos in the atmosphere of the Araucanía Region in Chile using polyurethane foam-based passive air samplers

Karla Pozo*, Yasna Llanos, Victor H. Estellano, Sandra Cortés, Hector Jorquera, Lorena Gerli, Katerine Pozo, Francisco Encina, Rodrigo Palma, Silvano Focardi

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

19 Citas (Scopus)

Resumen

Little is known regarding the use and ambient levels of pesticides in Chilean agricultural regions. Chlorpyrifos (CPF) is one of the most used active ingredients in Chile and in the world. However, few investigations have been conducted to understand its environmental distribution and fate. In this study, PUF disk passive air samples were deployed during ∼one year in two areas, Angol (5 sites) and Villarrica (2 sites), in the Araucanía Region. The concentration in air of CPF ranged from ten to thousands of pg m−3 (∼20–14 600). The highest CPF concentrations were detected at the Angol sites (∼14 600 pg m3) during period 2 (August–December 2008). These results were higher by a factor of ∼10–15 than those detected in Villarica sites (∼2000 pg m3) in period 1 (April–July 2008). Seasonal CPF variations were observed, at both sites, within the sampling periods. Air back trajectory analyses showed that air masses from nearby agricultural zones contributed most of the CPF detected in Angol sites when the wind speed was low and at Villarrica when those sources were likely located north of the VMA site. These results provide initial data for CPF in the Chilean atmosphere and contribute new information to understanding distribution of CPF in Chilean environments.

Idioma originalInglés
Páginas (desde-hasta)706-710
Número de páginas5
PublicaciónAtmospheric Pollution Research
Volumen7
N.º4
DOI
EstadoPublicada - 2016
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2016 Turkish National Committee for Air Pollution Research and Control

Áreas temáticas de ASJC Scopus

  • Gestión y eliminación de residuos
  • Contaminación
  • Ciencias atmosféricas

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