Phytotoxicity of phenanthrene and its nitrogen polycyclic aromatic hydrocarbon analogues in ageing soil

Anyanwu, Ihuoma and Semple, Kirk Taylor (2015) Phytotoxicity of phenanthrene and its nitrogen polycyclic aromatic hydrocarbon analogues in ageing soil. Water, Air, and Soil Pollution, 226. ISSN 0049-6979

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Abstract

The impacts of phenanthrene and its nitrogen-containing analogues (N-PAHs) on seedling emergence and plant biomass of two terrestrial plant species, Lactuca sativa (lettuce) and Lolium perenne (rye grass), were investigated in soil over a 21-day exposure period. The data over 0–90-day soil-chemical contact time revealed that seedling emergence and plant biomass were significantly affected by N-PAHs even at the lowest concentration of 10 mg/kg. N-PAH amended soils showed greater inhibitory effects on seedling emergence and early plant biomass than phenanthrene amendments with incubations overtime. The degree of inhibition (% inhibition) on seedling emergence over time was 33.3 % (lettuce) and 46.7 % (rye grass) for the phenanthrene, and 53.3 % (lettuce) and 93.3 % (rye grass) for the N-PAHs, respectively, suggesting greater sensitivity of seedling emergence and early plant biomass on N-PAH-contaminated soil. The results from this study will contribute to data gaps for poorly managed chemicals/chemical groups for environmental risk assessment and might be useful in the development of new approaches for hazard assessment of contaminated systems.

Item Type: Journal Article
Journal or Publication Title: Water, Air, and Soil Pollution
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2300/2305
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 81224
Deposited By: ep_importer_pure
Deposited On: 22 Aug 2016 11:08
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 09:54
URI: https://eprints.lancs.ac.uk/id/eprint/81224

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