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PAH contamination of western Irish Sea sediments |
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| Authors: | Charlesworth M Service M Gibson C E |
| Institution: | a Department of Agriculture and Environmental Science, The Queens University of Belfast, Newforge Lane, Belfast BT9 5PX, Northern Ireland, UK b Agricultural and Environmental Science Division, Department of Agriculture and Rural Development for Northern Ireland, Newforge Lane, Belfast BT9 5PX, Northern Ireland, UK |
| Abstract: | Concentrations of the sum of 15 PAHs in 22 surficial sediment samples from the western Irish Sea ranged from below 100 ng g?1 in sandy sediments to a maximum of 1422 ng g?1 in the centre of the mud basin. The concentrations are typical of coastal shelf sediments, but greater than those observed for aquatic sediments remote from known anthropogenic sources. Organic C and the % sediment <15 μm were positively correlated with ΣPAH. ΣPAH was normalised to organic C and particle size (i.e. expressed as ΣPAH/Corg and ΣPAH/%<15 μm) and significant relationships were still observed with organic C and %<15 μm. The results are discussed in the context of using organic C to normalise concentrations of PAHs to assess contamination levels in sediments. |
| Keywords: | PAHs Sediments Western Irish Sea Normalisation |
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