Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms

Fengjiao Peng, Nöel Diepens, Changgui Pan, Sally Bracewell, Guangguo Ying, Daniel Salvito, Henriette Selck, Paul van den Brink

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Triclosan (TCS) is an antibacterial agent that is commonly used in personal care products. Because of its sediment-binding properties, TCS exposure presents a potential threat to sediment-dwelling aquatic organisms. Currently our knowledge of the fate and effects of sediment-associated TCS in aquatic systems is limited. To understand the impact of sediment-associated TCS, we used microcosms to assess effects of TCS exposure on a diverse range of organisms selected to mimic a subtropical community, with an exposure period of 28 days. We included the oligochaete freshwater worm Limnodrilus hoffmeisteri to evaluate the interaction between sediment-associated TCS and sediment-dwelling organisms, including potential loss of TCS from the sediment due to biological activity and bioaccumulation. Benthic macroinvertebrate presence significantly increased the TCS levels from 0.013 ± 0.007 μg/L to 0.613 ± 0.030 μg/L in the overlying water through biological activity, posing a potential additional risk to pelagic species, but it did not result in a significant reduction of the sediment concentration. Furthermore, worms accumulated TCS with estimated Biota-Sediment-Accumulation-Factors (BSAFs) ranging between 0.38-3.55. Other than for algae, TCS at environmental concentrations did not affect the survival of the introduced organisms, including the L. hoffmeisteri. Our results demonstrate that, although TCS at currently detected maximum concentration may not have observable toxic effects on the benthic macroinvertebrates in the short term, it can lead to bioaccumulation in worms.
OriginalsprogEngelsk
TidsskriftAquatic Toxicology
Vol/bind2018
Udgave nummer202
Sider (fra-til)117-225
Antal sider9
ISSN0166-445X
DOI
StatusUdgivet - sep. 2018

Citer dette

Peng, F., Diepens, N., Pan, C., Bracewell, S., Ying, G., Salvito, D., ... van den Brink, P. (2018). Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms. Aquatic Toxicology, 2018(202), 117-225. https://doi.org/10.1016/j.aquatox.2018.07.008
Peng, Fengjiao ; Diepens, Nöel ; Pan, Changgui ; Bracewell, Sally ; Ying, Guangguo ; Salvito, Daniel ; Selck, Henriette ; van den Brink, Paul. / Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms. I: Aquatic Toxicology. 2018 ; Bind 2018, Nr. 202. s. 117-225.
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title = "Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms",
abstract = "Triclosan (TCS) is an antibacterial agent that is commonly used in personal care products. Because of its sediment-binding properties, TCS exposure presents a potential threat to sediment-dwelling aquatic organisms. Currently our knowledge of the fate and effects of sediment-associated TCS in aquatic systems is limited. To understand the impact of sediment-associated TCS, we used microcosms to assess effects of TCS exposure on a diverse range of organisms selected to mimic a subtropical community, with an exposure period of 28 days. We included the oligochaete freshwater worm Limnodrilus hoffmeisteri to evaluate the interaction between sediment-associated TCS and sediment-dwelling organisms, including potential loss of TCS from the sediment due to biological activity and bioaccumulation. Benthic macroinvertebrate presence significantly increased the TCS levels from 0.013 ± 0.007 μg/L to 0.613 ± 0.030 μg/L in the overlying water through biological activity, posing a potential additional risk to pelagic species, but it did not result in a significant reduction of the sediment concentration. Furthermore, worms accumulated TCS with estimated Biota-Sediment-Accumulation-Factors (BSAFs) ranging between 0.38-3.55. Other than for algae, TCS at environmental concentrations did not affect the survival of the introduced organisms, including the L. hoffmeisteri. Our results demonstrate that, although TCS at currently detected maximum concentration may not have observable toxic effects on the benthic macroinvertebrates in the short term, it can lead to bioaccumulation in worms.",
keywords = "Benthic macroinvertebrates, Bioaccumulation, Dissipation, Partitioning, Toxicity",
author = "Fengjiao Peng and N{\"o}el Diepens and Changgui Pan and Sally Bracewell and Guangguo Ying and Daniel Salvito and Henriette Selck and {van den Brink}, Paul",
year = "2018",
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Peng, F, Diepens, N, Pan, C, Bracewell, S, Ying, G, Salvito, D, Selck, H & van den Brink, P 2018, 'Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms', Aquatic Toxicology, bind 2018, nr. 202, s. 117-225. https://doi.org/10.1016/j.aquatox.2018.07.008

Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms. / Peng, Fengjiao; Diepens, Nöel; Pan, Changgui; Bracewell, Sally; Ying, Guangguo; Salvito, Daniel; Selck, Henriette; van den Brink, Paul.

I: Aquatic Toxicology, Bind 2018, Nr. 202, 09.2018, s. 117-225.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Fate and effects of sediment-associated triclosan in subtropical freshwater microcosms

AU - Peng, Fengjiao

AU - Diepens, Nöel

AU - Pan, Changgui

AU - Bracewell, Sally

AU - Ying, Guangguo

AU - Salvito, Daniel

AU - Selck, Henriette

AU - van den Brink, Paul

PY - 2018/9

Y1 - 2018/9

N2 - Triclosan (TCS) is an antibacterial agent that is commonly used in personal care products. Because of its sediment-binding properties, TCS exposure presents a potential threat to sediment-dwelling aquatic organisms. Currently our knowledge of the fate and effects of sediment-associated TCS in aquatic systems is limited. To understand the impact of sediment-associated TCS, we used microcosms to assess effects of TCS exposure on a diverse range of organisms selected to mimic a subtropical community, with an exposure period of 28 days. We included the oligochaete freshwater worm Limnodrilus hoffmeisteri to evaluate the interaction between sediment-associated TCS and sediment-dwelling organisms, including potential loss of TCS from the sediment due to biological activity and bioaccumulation. Benthic macroinvertebrate presence significantly increased the TCS levels from 0.013 ± 0.007 μg/L to 0.613 ± 0.030 μg/L in the overlying water through biological activity, posing a potential additional risk to pelagic species, but it did not result in a significant reduction of the sediment concentration. Furthermore, worms accumulated TCS with estimated Biota-Sediment-Accumulation-Factors (BSAFs) ranging between 0.38-3.55. Other than for algae, TCS at environmental concentrations did not affect the survival of the introduced organisms, including the L. hoffmeisteri. Our results demonstrate that, although TCS at currently detected maximum concentration may not have observable toxic effects on the benthic macroinvertebrates in the short term, it can lead to bioaccumulation in worms.

AB - Triclosan (TCS) is an antibacterial agent that is commonly used in personal care products. Because of its sediment-binding properties, TCS exposure presents a potential threat to sediment-dwelling aquatic organisms. Currently our knowledge of the fate and effects of sediment-associated TCS in aquatic systems is limited. To understand the impact of sediment-associated TCS, we used microcosms to assess effects of TCS exposure on a diverse range of organisms selected to mimic a subtropical community, with an exposure period of 28 days. We included the oligochaete freshwater worm Limnodrilus hoffmeisteri to evaluate the interaction between sediment-associated TCS and sediment-dwelling organisms, including potential loss of TCS from the sediment due to biological activity and bioaccumulation. Benthic macroinvertebrate presence significantly increased the TCS levels from 0.013 ± 0.007 μg/L to 0.613 ± 0.030 μg/L in the overlying water through biological activity, posing a potential additional risk to pelagic species, but it did not result in a significant reduction of the sediment concentration. Furthermore, worms accumulated TCS with estimated Biota-Sediment-Accumulation-Factors (BSAFs) ranging between 0.38-3.55. Other than for algae, TCS at environmental concentrations did not affect the survival of the introduced organisms, including the L. hoffmeisteri. Our results demonstrate that, although TCS at currently detected maximum concentration may not have observable toxic effects on the benthic macroinvertebrates in the short term, it can lead to bioaccumulation in worms.

KW - Benthic macroinvertebrates

KW - Bioaccumulation

KW - Dissipation

KW - Partitioning

KW - Toxicity

U2 - 10.1016/j.aquatox.2018.07.008

DO - 10.1016/j.aquatox.2018.07.008

M3 - Journal article

VL - 2018

SP - 117

EP - 225

JO - Aquatic Toxicology

JF - Aquatic Toxicology

SN - 0166-445X

IS - 202

ER -