Extraction of bioavailable contaminants from marine sediments: An approach to reducing toxicity using adsorbent parcels

•We present an approach to reducing acute toxicity within marine sediments.•We use toxicity tests to investigate the potential of two types of adsorbent parcel.•We demonstrate that adsorbent parcels were effective in reducing acute toxicity.•Adsorbent parcels were also effective in sediments contain...

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Bibliographic Details
Published in:Marine pollution bulletin 2013-07, Vol.72 (1), p.250-256
Main Authors: Goodsir, Freya, Fisher, Tom T., Barry, Jon, Bolam, Thi, Nelson, Leah D., Rumney, Heather S., Brant, Jan L.
Format: Article
Language:English
Subjects:
activated carbon
Acute toxicity
Adsorbent parcels
adsorbents
Amphipoda
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Applied ecology
Bioavailability
Biological and medical sciences
Corophium volutator
Ecotoxicology, biological effects of pollution
Environmental Monitoring - methods
Fundamental and applied biological sciences. Psychology
Geologic Sediments - chemistry
Marine
Marine and brackish environment
marine environment
Marine sediment
marine sediments
naphthalene
Naphthalenes - chemistry
Naphthalenes - toxicity
Polystyrenes - chemistry
Polyvinyls - chemistry
sampling
Sea water ecosystems
sediment contamination
Synecology
toxicity testing
Toxicity Tests, Acute - methods
Trialkyltin Compounds - chemistry
Trialkyltin Compounds - toxicity
tributyltin
Water Pollutants, Chemical - chemistry
Water Pollutants, Chemical - toxicity
water pollution
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Summary:•We present an approach to reducing acute toxicity within marine sediments.•We use toxicity tests to investigate the potential of two types of adsorbent parcel.•We demonstrate that adsorbent parcels were effective in reducing acute toxicity.•Adsorbent parcels were also effective in sediments containing mixtures. This paper demonstrates an approach to reducing acute toxicity in marine sediments using adsorbent parcels. Acute toxicity tests were carried using the marine amphipod Corophium volutator. Marine sediments were spiked with two know contaminants tributyltin and naphthalene and then treated with adsorbent parcels containing either amberlite XAD4 or activated carbon. Results showed that both types of adsorbent parcels were effective in reducing acute toxicity, not only within spiked sediments containing naphthalene and/or tributyltin, but also in an environmental field samples form an expected contaminated site. Adsorbent parcels such as these could provide a practical approach to remediate areas of contaminated sediment within marine environments. Furthermore adsorbents can be used as an identification tool for problematic contaminants using a toxicity identification evaluation approach.
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2013.04.026