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Polynuclear aromatic hydrocarbons (PAHs) in global background soils.

Nam, Jae Jak and Sweetman, Andrew J. and Jones, Kevin C. (2009) Polynuclear aromatic hydrocarbons (PAHs) in global background soils. Journal of Environmental Monitoring, 11 (1). pp. 45-48. ISSN 1464-0325

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Abstract

The levels and distribution of polynuclear aromatic hydrocarbons (PAHs) were investigated in global background soil samples. Total PAH concentrations (sum of 15 compounds) ranged over 5 orders of magnitude, from <1 to 7,840 (mean 328) ng g-1 dry weight. The order was generally Europe > North America > Asia > Oceania > Africa > South America. Proximity to long-term emissions sources and locations susceptible to high atmospheric depositional inputs tended to have higher concentrations. A broad positive correlation was obtained between population density and soil PAH concentrations (i.e. source-related factors). However, concentrations were also influenced by the holding capacity of the soils (i.e. sink-related factors) with statistically significant correlations observed between PAHs and soil organic matter (SOM), and black carbon (BC).

Item Type: Article
Journal or Publication Title: Journal of Environmental Monitoring
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 28167
Deposited By: Mr Richard Ingham
Deposited On: 13 Nov 2009 10:30
Refereed?: Yes
Published?: Published
Last Modified: 06 Sep 2013 19:36
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/28167

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