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Polycyclic Aromatic Hydrocarbons in Mountain Soils of the Subtropical Atlantic

2003; Wiley; Volume: 32; Issue: 3 Linguagem: Inglês

10.2134/jeq2003.0977

1537-2537

Alejandra Ribes, Joan O. Grimalt, Carlos Torres, Emilio Cuevas,

Per- and polyfluoroalkyl substances research

Journal of Environmental QualityVolume 32, Issue 3 p. 977-987 Organic Compound in the Environment Polycyclic Aromatic Hydrocarbons in Mountain Soils of the Subtropical Atlantic A. Ribes, A. Ribes Dep. of Environmental Chemistry, Institute of Chemical and Environmental Research (ICER-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, SpainSearch for more papers by this authorJ. O. Grimalt, Corresponding Author J. O. Grimalt jgoqam@cid.csic.es Dep. of Environmental Chemistry, Institute of Chemical and Environmental Research (ICER-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, SpainCorresponding author (jgoqam@cid.csic.es)Search for more papers by this authorC. J. Torres García, C. J. Torres García Izaña Atmospheric Observatory, National Institute of Meteorology, La Marina 20, 38071 Santa Cruz de Tenerife, Canary Islands, SpainSearch for more papers by this authorE. Cuevas, E. Cuevas Izaña Atmospheric Observatory, National Institute of Meteorology, La Marina 20, 38071 Santa Cruz de Tenerife, Canary Islands, SpainSearch for more papers by this author A. Ribes, A. Ribes Dep. of Environmental Chemistry, Institute of Chemical and Environmental Research (ICER-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, SpainSearch for more papers by this authorJ. O. Grimalt, Corresponding Author J. O. Grimalt jgoqam@cid.csic.es Dep. of Environmental Chemistry, Institute of Chemical and Environmental Research (ICER-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, SpainCorresponding author (jgoqam@cid.csic.es)Search for more papers by this authorC. J. Torres García, C. J. Torres García Izaña Atmospheric Observatory, National Institute of Meteorology, La Marina 20, 38071 Santa Cruz de Tenerife, Canary Islands, SpainSearch for more papers by this authorE. Cuevas, E. Cuevas Izaña Atmospheric Observatory, National Institute of Meteorology, La Marina 20, 38071 Santa Cruz de Tenerife, Canary Islands, SpainSearch for more papers by this author First published: 01 May 2003 https://doi.org/10.2134/jeq2003.9770Citations: 30Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat ABSTRACT Surface soil samples from various altitudes on Tenerife Island, ranging from sea level up to 3400 m above mean sea level, were analyzed to study the distribution of 26 polycyclic aromatic hydrocarbons (PAHs) in a remote subtropical area. The stable atmospheric conditions in this island define three vertically stratified layers: marine boundary, trade-wind inversion, and free troposphere. Total PAH concentrations, 1.9 to 6000 μg/kg dry wt., were high when compared with those in tropical areas and in a similar range to those in temperate areas. In the marine boundary layer, fluoranthene (Fla), pyrene (Pyr), benz[a]anthracene (BaA), and chrysene (C + T) were largely dominant. The predominance of Fla over Pyr may reflect photo-oxidative processes during atmospheric transport, although coal combustion inputs cannot be excluded. The PAHs found in higher concentration in the soils from the inversion layer were benzo[b + j]fluoranthene (BbjF) + benzo[k]fluoranthene (BkF) > benzo[e]pyrene (BeP) ≈ indeno[1,2,3-cd]pyrene (Ind) > benzo[a]pyrene (BaP) ≅ benzo[ghi]perylene (Bghi) > coronene (Cor) ≅ dibenz[a,h]anthracene (Dib), reflecting that high temperatures and insolation prevent the accumulation of PAHs more volatile than BbjF in significant amounts. These climatic conditions involve a process of standardization that prevents the identification of specific PAH sources such as traffic, forest fires, or industrial inputs. Only soils with high total organic carbon (TOC) (e.g., 10–30%) preserve the more volatile compounds such as phenanthrene (Phe), methylphenanthrenes (MPhe), dimethylphenanthrenes (DMPhe), and retene (Ret). However, no relation between PAHs and soil TOC and black carbon (BC) was found. The specific PAH distributions of the free tropospheric region suggest a direct input from pyrolytic processes related to the volcanic emission of gases in Teide. Citing Literature Volume32, Issue3May 2003Pages 977-987 RelatedInformation