title: Extraction of bioavailable contaminants from marine sediments: an approach to reducing toxicity using adsorbent parcels.
abstract: 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.
authors.affiliation: Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 OHT, UK. Freya.goodsir@cefas.co.uk
authors.forename: Freya
authors.initials: F
authors.lastname: Goodsir
authors.forename: Tom T
authors.initials: TT
authors.lastname: Fisher
authors.forename: Jon
authors.initials: J
authors.lastname: Barry
authors.forename: Thi
authors.initials: T
authors.lastname: Bolam
authors.forename: Leah D
authors.initials: LD
authors.lastname: Nelson
authors.forename: Heather S
authors.initials: HS
authors.lastname: Rumney
authors.forename: Jan L
authors.initials: JL
authors.lastname: Brant
mesh_terms: D033304:Amphipoda; D000818:Animals; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D009281:Naphthalenes / Q000737:chemistry / Q000633:toxicity; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D023382:Toxicity Tests, Acute / Q000379:methods*; D014220:Trialkyltin Compounds / Q000737:chemistry / Q000633:toxicity; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000633:toxicity*
chemical_list: D009281:Naphthalenes; D011137:Polystyrenes; D011145:Polyvinyls; D014220:Trialkyltin Compounds; D014874:Water Pollutants, Chemical; C031721:naphthalene; C012101:XAD-4 resin; C011559:tributyltin