Abstract
It has been hypothesised that persistent organic
pollutants (POPs) in microplastic may pose a risk to aquatic organisms.
Here, we present a conceptual model for bioaccumulation of POPs
including uptake from water, food and ingested plastic. The model
accounts for dilution of exposure concentration by sorption of POPs to
plastic (POP 'dilution'), increased bioaccumulation by ingestion of
plastic containing POPs ('carrier'), and decreased bioaccumulation by
ingestion of clean plastic ('cleaning'). A dynamically modelled
absorption efficiency from plastic is proposed, which is calculated from
particle size, POP polymer diffusivities, the time variable gradient
between plastic and organism POP concentrations, and gut retention
time. The model is parameterised for the lugworm Arenicola marina and
evaluated against recently published polychlorinated biphenyl (PCB)
bioaccumulation data for this species from laboratory bioassays with
polystyrene microplastic. Further scenarios include polyethylene
Original language | English |
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Title of host publication | 23rd Annual Meeting of the Society of Environmental Toxicology and Chemistry, 12 - 16 May, Glasgow |
Pages | 36-36 |
Publication status | Published - 2013 |
Event | SETAC 23rd Europe Annual Meeting - Glasgow, United Kingdom Duration: 12 May 2013 → 16 May 2013 |
Conference
Conference | SETAC 23rd Europe Annual Meeting |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 12/05/13 → 16/05/13 |