Spatial distribution of PAHs in the U.K. atmosphere using pine needles

Tremolada, Paolo and Burnett, Victoria and Calamari, Davide and Jones, Kevin C. (1996) Spatial distribution of PAHs in the U.K. atmosphere using pine needles. Environmental Science and Technology, 30 (12). pp. 3570-3577. ISSN 0013-936X

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Abstract

A study of the spatial distribution and mixture of polycyclic aromatic hydrocarbons (PAHs) in pine needles sampled across the U.K. in the summer of 1994 is presented. PAHs reach pine needles via atmospheric transport and deposition processes. Phenanthrene was distributed irregularly across the U.K., while the other PAHs generally decreased on a northward gradient from the southern England to northern Scotland by a factor of ~7. A relationship was found between the mean PAH concentrations of each area sampled and the population density. Fingerprint technique enabled differences in the PAH composition among the different areas to be highlighted. A southern, central, and northern fingerprint were determined over a more general uniform contamination pattern. Calculated air concentrations, through bioconcentration factors (BCF) based on octanol-air partition coefficients (K(oa)), were compared with measured data from the literature. The underestimation of the calculated values were related to the K(oa) of each compound, indicating that for log K(oa) values >8-9, K(oa)-based BCFs do not correctly predict mean air concentrations.

Item Type: Journal Article
Journal or Publication Title: Environmental Science and Technology
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2300/2304
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 137816
Deposited By: ep_importer_pure
Deposited On: 14 Oct 2019 13:38
Refereed?: Yes
Published?: Published
Last Modified: 14 Nov 2019 04:13
URI: https://eprints.lancs.ac.uk/id/eprint/137816

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