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vol.56 issue1SPECTROPHOTOMETRY MICRODETERMINATION OF SOME ANTIHYPERTENSIVE DRUGS IN PURE FORM AND IN PHARMACEUTICAL FORMULATIONSFORMULATION AND CHARACTERIZATION OF INCLUSION COMPLEXES USING HYDROXYPROPYL-β-CYCLODEXTRIN AND FLORFENICOL WITH CHITOSAN MICROPARTICLES author indexsubject indexarticles search
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Journal of the Chilean Chemical Society

On-line version ISSN 0717-9707

Abstract

QUIROZ, ROBERTO; POPP, PETER  and  BARRA, RICARDO. TEMPORAL VARIATION OF PAHS IN SOILS FROM THE BIOBÍO REGION: CENTRAL SOUTHERN CHILE. J. Chil. Chem. Soc. [online]. 2011, vol.56, n.1, pp.571-573. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072011000100010.

In this short communication we describe the temporal variation of PAHs fingerprints and burden in surface soils from coastal and central valley sites in South Central Chile, with different anthropogenic influence. PAHs were extracted with accelerated solvent extraction and measured by HPLC with fluorescence detection. Levels of ∑ 15 PAHs were relatively low in both sites ranging between 190 to 3396 ng g1 TOC of soil, However, the fingerprints were different in both sites an increment in the total concentrations was observed (p<0.001) in summer compared to winter periods (May 2001 and January 2002). These results suggest a temporal change in the total burden of PAHs and that the sources are related to biomass and coal combustion.

Keywords : PAHs, Soil; Temporal variation; Pollution; Chile.

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