Polynuclear aromatic hydrocarbons in crops from long-term field experiments amended with sewage sludge

A - Papers appearing in refereed journals

Wild, S. R., Berrow, M. L., McGrath, S. P. and Jones, K. C. 1992. Polynuclear aromatic hydrocarbons in crops from long-term field experiments amended with sewage sludge. Environmental Pollution. 76 (1), pp. 25-32.

AuthorsWild, S. R., Berrow, M. L., McGrath, S. P. and Jones, K. C.
Abstract

This study reports on the polynuclear aromatic hydrocarbon (PAH) content of crop plants grown at three different field experiments where controlled additions of sewage sludge were made a number of years ago. Archived samples of several crops have been analysed from sludge-amended and unsludged control plots for 15 PAH compounds. Root crops and above ground plant parts were available for several years following the last applications of sludge. Although the soil PAH burden increased substantially due to sewage sludge additions, and residues of these compounds have persisted in the soils for many years, increased PAH concentrations relative to the unsludged controls were not consistently detected in plant tissues. Plant samples were relatively enriched with low molecular weight compounds such as acenaphthene/fluorene nd phenanthrene. Various lines of evidence indicate that PAHs detected in above ground plant parts are chiefly derived from atmospheric inputs, while PAHs detected in root crops probably arise from adsorption to the root surface.

Year of Publication1992
JournalEnvironmental Pollution
Journal citation76 (1), pp. 25-32
Digital Object Identifier (DOI)doi:10.1016/0269-7491(92)90113-O
Open accessPublished as non-open access
Funder project or code923
108
219
PublisherElsevier Sci Ltd
Copyright licenseCC BY
ISSN0269-7491

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