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Environmental Geochemistry and Health

, Volume 41, Issue 2, pp 699–713 | Cite as

Urban geochemistry and potential human health risks in the Metropolitan Area of Buenos Aires: PAHs and PCBs in soil, street dust, and bulk deposition

  • N. CappellettiEmail author
  • M. Astoviza
  • M. Morrone
  • L. Tatone
Original Paper

Abstract

Soil, street dust, and bulk deposition (dry and wet deposition) were collected in the Metropolitan Area of Buenos Aires (MABA), Argentina, to assess the polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) pollution and the potential risks to human health. Compared with other countries, the mean concentration of PAHs and PCBs in surface soils, street dust and bulk deposition of MABA were at a low or moderate level. Average PAHs and PCBs concentrations in bulk deposition (5.7 ± 5.1 and 0.41 ± 0.25 µg g−1, respectively) were five and ten times higher than those of soil (1.08 ± 0.98 and 0.02 ± 0.01 µg g−1) and street dust (1.2 ± 0.95 and 0.04 ± 0.03 µg g−1), respectively. Different compositional profiles, observed in the three matrices for both groups of contaminants, could be attributed to dissimilar source contribution, partition processes between gas and particulate phases, and transformation. The most contaminated bulk deposition presented higher values for cancer and non-cancer risks relative to soil and street dust. In all matrices, non-carcinogenic risks were below the safety threshold (HI < 1). Regarding carcinogenic risks, exposure to both bulk deposition and soil indicated a moderated potential for cancerous development (Incremental lifetime cancer risk ~ 3.0 × 10−6).

Keywords

PAHs PCBs Soil Street dust Bulk deposition Human health risk 

Notes

Acknowledgements

This study is a part of the Project UNDAVCYT2013 funded by National University of Avellaneda, Argentina. The authors wish to thank Dr. Lucas Garbin for the English revisions.

Supplementary material

10653_2018_163_MOESM1_ESM.docx (107 kb)
Supplementary material 1 (DOCX 107 kb)

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Buenos AiresArgentina
  2. 2.Grupo de investigación en Geología AmbientalUniversidad Nacional de Avellaneda-Comisión investigaciones científicasAvellanedaArgentina
  3. 3.Laboratorio de Química Ambiental y Biogeoquímica, Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataFlorencio VarelaArgentina

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