Abstract
Sediment cores from Staten Island's salt marsh contain multiple historical oil spill events that impact ecological health. Microtox solid phase bioassay indicated moderate to high toxicity. Multiple spikes of TPH (6524 to 9586 mg/kg) and Σ16 PAH (15.5 to 18.9 mg/kg) were co-incident with known oil spills. A high TPH background of 400–700 mg/kg was attributed to diffuse sources. Depth-profiled metals Cu (1243 mg/kg), Zn (1814 mg/kg), Pb (1140 mg/kg), Ni (109 mg/kg), Hg (7 mg/kg), Cd 15 (mg/kg) exceeded sediment quality guidelines confirming adverse biological effects. Changes in Pb206/207 suggested three metal contaminant sources and diatom assemblages responded to two contamination events. Organic and metal contamination in Saw Mill Creek Marsh may harm sensitive biota, we recommend caution in the management of the 20–50 cm sediment interval because disturbance could lead to remobilisation of pre-existing legacy contamination into the waterway. © 2020 British Geological Survey, a component body of UKRI BGS © UKRI 2020. Published by Elsevier Ltd.
| Original language | English |
|---|---|
| Article number | 110721 |
| Journal | Marine Pollution Bulletin |
| Volume | 151 |
| Online published | 29 Jan 2020 |
| DOIs | |
| Publication status | Published - Feb 2020 |
| Externally published | Yes |
Funding
This paper is published by permission of the Executive Director of the British Geological Survey, UKRI.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
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SDG 11 Sustainable Cities and Communities
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SDG 14 Life Below Water
Research Keywords
- Microtox
- Pollution
- Polyaromatic hydrocarbons (PAH)
- Total petroleum hydrocarbons (TPH)
- Urban
Publisher's Copyright Statement
- This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/
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