期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 386, 期 1-3, 页码 1-8出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2007.07.008
关键词
PAHs; creosote; reversed-phase HPLC; soil; olive oil; railway ties
Simple sample preparation procedures involving sonication and solid phase extraction (SPE), followed by reversed-phase high performance liquid chromatography (HPLC) and spectrofluorometric detection, were used to analyse polycyclic aromatic hydrocarbons (PAHs) in soil and olives collected in areas contaminated with creosote-treated railway ties. Very high PAH contents (with amounts ranging from 114.7 to 2157.2 and from 167.3 to 3 121.8 mu g kg(-1) dry weight for total light PAHs and total heavy PAHs, respectively) were found in soil sampled up to I m from the source of contamination. The PAH load decreased rapidly with the distance from the railway ties. High amounts of light PAHs, up to 6359.9 mu g kg(-1), were also found in oil extracted from olives collected in a rural area where old railway ties were stored. No appreciable transfer of heavy PAHs and benzo[a]pyrene was observed in oil samples. (c) 2007 Elsevier B.V. All rights reserved.
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