Sources of Variation in Sediment Toxicity of Hydrophobic Organic Chemicals: Meta‐analysis of 10–14 day Spiked‐sediment Tests with Hyalella azteca and Chironomus dilutus

2021 ◽  
Author(s):  
Kyoshiro Hiki ◽  
Haruna Watanabe ◽  
Hiroshi Yamamoto
Keyword(s):  
Sediment Toxicity ◽  
Meta Analysis ◽  
Hyalella Azteca ◽  
Organic Chemicals ◽  
Hydrophobic Organic Chemicals ◽  
Spiked Sediment ◽  
Sources Of Variation ◽  
Chironomus Dilutus

Toxicity and accumulation of zinc and copper in Hyalella azteca exposed to metal-spiked sediments

1997 ◽  
Vol 54 (5) ◽  
pp. 1046-1054 ◽  
Author(s):  
U Borgmann ◽  
W P Norwood
Keyword(s):  
Chronic Toxicity ◽  
Sediment Toxicity ◽  
Copper Toxicity ◽  
Hyalella Azteca ◽  
Gut Contents ◽  
Copper Accumulation ◽  
Zinc Toxicity ◽  
Short Term ◽  
Spiked Sediment ◽  
The Relationship

The relationship between zinc and copper toxicity in Hyalella azteca and accumulation from metal-spiked sediments was determined for future use in identifying sites where these metals contribute to sediment toxicity. Both zinc and copper accumulation increased rapidly with increasing sediment concentrations, showing no evidence of saturation as seen in waterborne exposures. Zinc accumulation from zinc spiked sediments was substantial, even at concentrations below those causing chronic toxicity, and body concentrations can readily be used to infer chronic toxicity. Chronic toxicity in spiked sediment exposures occurred at excess (above background) body concentrations twice as high as in waterborne exposures, possibly as a result of zinc in gut contents. In contrast, chronic copper toxicity occurred at body concentrations lower than those observed in waterborne exposures. Furthermore, body copper at low sediment exposures was independent of copper in sediment. Body copper concentrations can be used to infer short-term (1-week) toxicity but not chronic toxicity. Copper, but not zinc, caused a reduction in growth, even at concentrations below the 4-week LC25. Reduced growth can, therefore, be used to differentiate between chronic copper and zinc toxicity in sediments.

Factors Affecting Bioconcentration of Trace Organic Contamination in Waters

1989 ◽  
Vol 21 (2) ◽  
pp. 147-150 ◽  
Author(s):  
D. W. Hawker ◽  
D. W. Connell
Keyword(s):  
Molecular Weight ◽  
Bioconcentration Factor ◽  
Aqueous Solubility ◽  
Organic Chemicals ◽  
Organic Contamination ◽  
Hydrophobic Organic Chemicals ◽  
Factors Affecting ◽  
Water Partition Coefficient ◽  
Physicochemical Factors ◽  
Trace Organic

The influence of some important biological and physicochemical factors on the bioconcentration of hydrophobic organic chemicals is outlined. For non-ionizable, persistent compounds the bioconcentration factor can be related to a compound's octanol/water partition coefficient, aqueous solubility and molecular weight, while the lipid content of an organism also affects the bioconcentration potential of these compounds. The effect of ionization and biodegradation of organic chemicals on bioconcentration is also discussed.

A physiologically based toxicokinetic (PBTK) model for moderately hydrophobic organic chemicals in the European eel ( Anguilla anguilla )

2015 ◽  
Vol 536 ◽  
pp. 279-287 ◽  
Author(s):  
Markus Brinkmann ◽  
Marko Freese ◽  
Jan-Dag Pohlmann ◽  
Ulrike Kammann ◽  
Thomas G. Preuss ◽  
...  
Keyword(s):  
Anguilla Anguilla ◽  
European Eel ◽  
Organic Chemicals ◽  
Hydrophobic Organic Chemicals ◽  
Physiologically Based

Sediment toxicity testing with the freshwater amphipod Hyalella azteca: Relevance and application

Chemosphere ◽  
2005 ◽  
Vol 61 (11) ◽  
pp. 1740-1743 ◽  
Author(s):  
Uwe Borgmann ◽  
Lee Grapentine ◽  
Warren P. Norwood ◽  
Glen Bird ◽  
D. George Dixon ◽  
...  
Keyword(s):  
Sediment Toxicity ◽  
Toxicity Testing ◽  
Hyalella Azteca ◽  
Sediment Toxicity Testing
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